import java.util.*;
import java.util.zip.*;
import java.util.List;
import java.util.regex.*;
import java.util.concurrent.*;
import java.util.concurrent.atomic.*;
import java.util.concurrent.locks.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;
import javax.swing.table.*;
import java.io.*;
import java.net.*;
import java.lang.reflect.*;
import java.lang.ref.*;
import java.lang.management.*;
import java.security.*;
import java.security.spec.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import javax.imageio.*;
import java.math.*;
import java.text.NumberFormat;
import javax.swing.undo.UndoManager;
import java.awt.datatransfer.StringSelection;

class main {

static void ele_logItemFeedback(boolean plus, String item, String madeFromInput, Object... __) {
  ele_logUserFeedback(plus,
    paramsPlus_inFront(__, "item", item, "moduleID" , dm_moduleSnippetID(), "moduleName" , dm_moduleName(), "madeFromInput", madeFromInput));
}
static void ele_logUserFeedback(boolean plus, Object... __) {
  File f = plus ? ele_userPlusLog() : ele_userMinusLog();
  Map map = litorderedmap(paramsPlus(__, "computerID" , computerID()));
  logStructureWithDate(f, map);
  String item = str(firstValue(map));
  infoBox("Saved feedback " + (plus ? "+" : "-") + " on " + quote(item));
  if (plus)
    ele_addToListOfEverything(item);
}
static Object[] paramsPlus_inFront(Object[] a1, Object... a2) {
  return paramsPlus(a2, a1);
}
static String dm_moduleSnippetID() {
  return programID();
}

static String dm_moduleSnippetID(Object mod) {
  if (mod == null) return null;
  return programID(dm_getModule(mod));
}
static String dm_moduleName() {
  return dm_moduleName(assertNotNull(dm_current_generic()));
}

static String dm_moduleName(Object module) {
  return (String) callOpt(dm_getStem(module), "moduleName");
}


static File ele_userPlusLog() {
  return javaxDataDir("user-plus-log.txt");
}
static File ele_userMinusLog() {
  return javaxDataDir("user-minus-log.txt");
}
static LinkedHashMap litorderedmap(Object... x) {
  LinkedHashMap map = new LinkedHashMap();
  litmap_impl(map, x);
  return map;
}
static Object[] paramsPlus(Object[] a1, Object... a2) {
  if (a2 == null) return a1;
  if (a1 == null) return a2;
  if (l(a1) == 1 && a1[0] instanceof Map)
    return new Object[] { mapPlus((Map) a1[0], a2) };
  assertEvenLength(a1);
  assertEvenLength(a2);
  Map map = paramsToOrderedMap(a1);
  int n = l(a2);
  for (int i = 0; i < n; i += 2) {
    Object key = a2[i];
    if (key != null) map.put(key, a2[i+1]);
  }
  return mapToParams(map);
}
static String _computerID;
static Lock computerID_lock = lock();

public static String computerID() {
  if (_computerID == null) {
    Lock __0 = computerID_lock; lock(__0); try {
    if (_computerID != null) return _computerID;
    File file = computerIDFile();
    _computerID = loadTextFile(file.getPath());
    if (_computerID == null) {
      // legacy load
      _computerID = loadTextFile(userDir(".tinybrain/computer-id"));
      if (_computerID == null)
        _computerID = makeRandomID(12, new SecureRandom());
      saveTextFile(file, _computerID);
    }
  } finally { unlock(__0); } }
  return _computerID;
}
static <A> A logStructureWithDate(File logFile, A o) {
  logQuoted(logFile, now() + " " + structure(o));
  return o;
}

// quick version - log to file in program directory
static <A> A logStructureWithDate(String fileName, A o) {
  return logStructureWithDate(getProgramFile(fileName), o);
}
static String str(Object o) {
  return o == null ? "null" : o.toString();
}

static String str(char[] c) {
  return new String(c);
}
static <A, B> B firstValue(Map<A, B> map) {
  return first(values(map));
}
static JWindow infoBox(String text) {
  return infoMessage(text);
}

static JWindow infoBox(String text, double seconds) {
  return infoMessage(text, seconds);
}

static JWindow infoBox(Throwable e) {
  return infoMessage(e);
}
static String quote(Object o) {
  if (o == null) return "null";
  return quote(str(o));
}

static String quote(String s) {
  if (s == null) return "null";
  StringBuilder out = new StringBuilder((int) (l(s)*1.5+2));
  quote_impl(s, out);
  return out.toString();
}
  
static void quote_impl(String s, StringBuilder out) {
  out.append('"');
  int l = s.length();
  for (int i = 0; i < l; i++) {
    char c = s.charAt(i);
    if (c == '\\' || c == '"')
      out.append('\\').append(c);
    else if (c == '\r')
      out.append("\\r");
    else if (c == '\n')
      out.append("\\n");
    else if (c == '\0')
      out.append("\\0");
    else
      out.append(c);
  }
  out.append('"');
}
static String ele_addToListOfEverything(String s) {
  dm_optPcallAll("eleLOE","addToLOE", s);
  return s;
}
static String programID() {
  return getProgramID();
}

static String programID(Object o) {
  return getProgramID(o);
}
static Object dm_getModule(Object moduleOrID) {
  if (moduleOrID == null || eq(moduleOrID, "")) return null;
  if (isString(moduleOrID) && isIdentifier(((String) moduleOrID)))
    return dm_getService(((String) moduleOrID));
  if (isStringOrIntOrLong(moduleOrID))
    return dm_callOS("getDynModuleByID", str(moduleOrID));
  return dm_resolveModule(moduleOrID);
}
static <A> A assertNotNull(A a) {
  assertTrue(a != null);
  return a;
}

static <A> A assertNotNull(String msg, A a) {
  assertTrue(msg, a != null);
  return a;
}
// named like this for historic reasons
static InheritableThreadLocal<WeakReference> dm_currentModule_value = new InheritableThreadLocal();

static Object dm_current_generic() {
  return getWeakRef(dm_currentModule_value.get());
}

// prevent memory leak
static void cleanMeUp_dm_current_generic() {
  dm_currentModule_value = new InheritableThreadLocal();
}
static Object callOpt(Object o) {
  return callF(o);
}

static <A> A callOpt(Object o, String method, Object... args) {
  return (A) callOpt_withVarargs(o, method, args);
}
static Object dm_getStem(Object moduleOrID) {
  if (isStringOrIntOrLong(moduleOrID))
    return dm_getStemByID(moduleOrID);
  return or(getOpt(dm_getModule(moduleOrID), "_host"), moduleOrID);
}


static File javaxDataDir_dir; // can be set to work on different base dir

static File javaxDataDir() {
  return javaxDataDir_dir != null ? javaxDataDir_dir : new File(userHome(), "JavaX-Data");
}

static File javaxDataDir(String... subs) {
  return newFile(javaxDataDir(), subs);
}
static HashMap litmap(Object... x) {
  HashMap map = new HashMap();
  litmap_impl(map, x);
  return map;
}

static void litmap_impl(Map map, Object... x) {
  if (x != null) for (int i = 0; i < x.length-1; i += 2)
    if (x[i+1] != null)
      map.put(x[i], x[i+1]);
}
static int l(Object[] a) { return a == null ? 0 : a.length; }
static int l(boolean[] a) { return a == null ? 0 : a.length; }
static int l(byte[] a) { return a == null ? 0 : a.length; }
static int l(short[] a) { return a == null ? 0 : a.length; }
static int l(long[] a) { return a == null ? 0 : a.length; }
static int l(int[] a) { return a == null ? 0 : a.length; }
static int l(float[] a) { return a == null ? 0 : a.length; }
static int l(double[] a) { return a == null ? 0 : a.length; }
static int l(char[] a) { return a == null ? 0 : a.length; }
static int l(Collection c) { return c == null ? 0 : c.size(); }
static int l(Iterator i) { return iteratorCount_int_close(i); } // consumes the iterator && closes it if possible
static int l(Map m) { return m == null ? 0 : m.size(); }
static int l(CharSequence s) { return s == null ? 0 : s.length(); }
static long l(File f) { return f == null ? 0 : f.length(); }



static int l(Object o) {
  return o == null ? 0
    : o instanceof String ? l((String) o)
    : o instanceof Map ? l((Map) o)
    : o instanceof Collection ? l((Collection) o)
    : o instanceof Object[] ? l((Object[]) o)
    : o instanceof boolean[] ? l((boolean[]) o)
    : o instanceof byte[] ? l((byte[]) o)
    : o instanceof char[] ? l((char[]) o)
    : o instanceof short[] ? l((short[]) o)
    : o instanceof int[] ? l((int[]) o)
    : o instanceof float[] ? l((float[]) o)
    : o instanceof double[] ? l((double[]) o)
    : o instanceof long[] ? l((long[]) o)
    : (Integer) call(o, "size");
}









static <A, B> Map<A, B> mapPlus(Map<A, B> m, Object... data) {
  m = cloneMap(m);
  litmap_impl(m, data);
  return m;
}
static Object[] assertEvenLength(Object[] a) {
  assertTrue(even(l(a)));
  return a;
}
static LinkedHashMap paramsToOrderedMap(Object... params) {
  return asLinkedHashMap(paramsToMap(params));
}
static Object[] mapToParams(Map map) {
  return mapToObjectArray(map);
}
static void lock(Lock lock) { try {
  ping();
  if (lock == null) return;
  try {
    lock.lockInterruptibly();
  } catch (InterruptedException e) {
    print("Locking interrupted! I probably deadlocked, oops.");
    printStackTrace(e);
    rethrow(e);
  }
  ping();
} catch (Exception __e) { throw rethrow(__e); } }

static void lock(Lock lock, String msg) {
  print("Locking: " + msg);
  lock(lock);
}

static void lock(Lock lock, String msg, long timeout) {
  print("Locking: " + msg);
  lockOrFail(lock, timeout);
}

static ReentrantLock lock() {
  return fairLock();
}
static File computerIDFile() {
  return javaxDataDir("Basic Info/computer-id.txt");
}
static String loadTextFile(String fileName) {
  return loadTextFile(fileName, null);
}

static String loadTextFile(File f, String defaultContents) { try {
  
  checkFileNotTooBigToRead(f);
  
  if (f == null || !f.exists()) return defaultContents;

  FileInputStream fileInputStream = new FileInputStream(f);
  InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream, "UTF-8");
  return loadTextFile(inputStreamReader);
} catch (Exception __e) { throw rethrow(__e); } }

public static String loadTextFile(File fileName) {
  return loadTextFile(fileName, null);
}

static String loadTextFile(String fileName, String defaultContents) {
  return fileName == null ? defaultContents : loadTextFile(newFile(fileName), defaultContents);
}

static String loadTextFile(Reader reader) throws IOException {
  StringBuilder builder = new StringBuilder();
  try {
    char[] buffer = new char[1024];
    int n;
    while (-1 != (n = reader.read(buffer)))
      builder.append(buffer, 0, n);
  } finally {
    reader.close();
  }
  return str(builder);
}
static File userDir() {
  return new File(userHome());
}

static File userDir(String path) {
  return new File(userHome(), path);
}
static String makeRandomID(int length) {
  return makeRandomID(length, defaultRandomGenerator());
}

static String makeRandomID(int length, Random random) {
  char[] id = new char[length];
  for (int i = 0; i < id.length; i++)
    id[i] = (char) ((int) 'a' + random.nextInt(26));
  return new String(id);
}

static String makeRandomID(Random r, int length) {
  return makeRandomID(length, r);
}
/** writes safely (to temp file, then rename) */
static File saveTextFile(String fileName, String contents) throws IOException {
  CriticalAction action = beginCriticalAction("Saving file " + fileName + " (" + l(contents) + " chars)");
  try {
    File file = new File(fileName);
    mkdirsForFile(file);
    String tempFileName = fileName + "_temp";
    File tempFile = new File(tempFileName);
    if (contents != null) {
      if (tempFile.exists()) try {
        String saveName = tempFileName + ".saved." + now();
        copyFile(tempFile, new File(saveName));
      } catch (Throwable e) { printStackTrace(e); }
      FileOutputStream fileOutputStream = newFileOutputStream(tempFile.getPath());
      OutputStreamWriter outputStreamWriter = new OutputStreamWriter(fileOutputStream, "UTF-8");
      PrintWriter printWriter = new PrintWriter(outputStreamWriter);
      printWriter.print(contents);
      printWriter.close();
    }
    
    if (file.exists() && !file.delete())
      throw new IOException("Can't delete " + fileName);
  
    if (contents != null)
      if (!tempFile.renameTo(file))
        throw new IOException("Can't rename " + tempFile + " to " + file);
        
    vmBus_send("wroteFile", file);
    return file;
  } finally {
    action.done();
  }
}

static File saveTextFile(File fileName, String contents) { try {
  saveTextFile(fileName.getPath(), contents);
  return fileName;
} catch (Exception __e) { throw rethrow(__e); } }
static void unlock(Lock lock, String msg) {
  if (lock == null) return;
  print("Unlocking: " + msg);
  lock.unlock();
}

static void unlock(Lock lock) {
  if (lock == null) return;
  lock.unlock();
}
static void logQuoted(String logFile, String line) {
  logQuoted(getProgramFile(logFile), line);
}

static void logQuoted(File logFile, String line) {
  appendToFile(logFile, quote(line) + "\n");
}
static long now_virtualTime;
static long now() {
  return now_virtualTime != 0 ? now_virtualTime : System.currentTimeMillis();
}

static boolean structure_showTiming, structure_checkTokenCount;

static String structure(Object o) {
  return structure(o, new structure_Data());
}

static String structure(Object o, structure_Data d) {
  StringWriter sw = new StringWriter();
  d.out = new PrintWriter(sw);
  structure_go(o, d);
  String s = str(sw);
  if (structure_checkTokenCount) {
    print("token count=" + d.n);
    assertEquals("token count", l(javaTokC(s)), d.n);
  }
  return s;
}

static void structure_go(Object o, structure_Data d) {
  structure_1(o, d);
  while (nempty(d.stack))
    popLast(d.stack).run();
}

static void structureToPrintWriter(Object o, PrintWriter out) {
  structure_Data d = new structure_Data();
  d.out = out;
  structure_go(o, d);
}

// leave to false, unless unstructure() breaks
static boolean structure_allowShortening = false;

// info on how to serialize objects of a certain class
static class structure_ClassInfo {
  List<Field> fields;
  Method customSerializer;
  boolean special, nullInstances;
}

static class structure_Data {
  PrintWriter out;
  int stringSizeLimit;
  int shareStringsLongerThan = 20;
  boolean noStringSharing = false;

  IdentityHashMap<Object, Integer> seen = new IdentityHashMap();
  //new BitSet refd;
  HashMap<String, Integer> strings = new HashMap();
  HashSet<String> concepts = new HashSet();
  HashMap<Class, structure_ClassInfo> infoByClass = new HashMap();
  HashMap<Class, Field> persistenceInfo = new HashMap();
  int n; // token count
  List<Runnable> stack = new ArrayList();
  
  // append single token
  structure_Data append(String token) { out.print(token); ++n; return this; }
  structure_Data append(int i) { out.print(i); ++n; return this; }
  
  // append multiple tokens
  structure_Data append(String token, int tokCount) { out.print(token); n += tokCount; return this; }
  
  // extend last token
  structure_Data app(String token) { out.print(token); return this; }
  structure_Data app(int i) { out.print(i); return this; }
}

static void structure_1(final Object o, final structure_Data d) { try {
  if (o == null) { d.append("null"); return; }
  
  Class c = o.getClass();
  boolean concept = false;
  
  structure_ClassInfo info = d.infoByClass.get(c);
  if (info == null) {
    d.infoByClass.put(c, info = new structure_ClassInfo());
    if ((info.customSerializer = findMethodNamed(c, "_serialize"))
      != null) info.special = true;
  }

  List<Field> lFields = info.fields;
  if (lFields == null) {
    // these are never back-referenced (for readability)
    
    if (o instanceof Number) {
      PrintWriter out = d.out;
if (o instanceof Integer) { int i = ((Integer) o).intValue(); out.print(i); d.n += i < 0 ? 2 : 1; return; }
      if (o instanceof Long) { long l = ((Long) o).longValue(); out.print(l); out.print("L"); d.n += l < 0 ? 2 : 1; return; }
      if (o instanceof Short) { short s = ((Short) o).shortValue(); d.append("sh "); out.print(s); d.n += s < 0 ? 2 : 1; return; }
      if (o instanceof Float) { d.append("fl ", 2); quoteToPrintWriter(str(o), out); return; }
      if (o instanceof Double) { d.append("d(", 3); quoteToPrintWriter(str(o), out); d.append(")"); return; }
      if (o instanceof BigInteger) { out.print("bigint("); out.print(o); out.print(")"); d.n += ((BigInteger) o).signum() < 0 ? 5 : 4; return; }
    }
  
    if (o instanceof Boolean) {
      d.append(((Boolean) o).booleanValue() ? "t" : "f"); return;
    }
      
    if (o instanceof Character) {
      d.append(quoteCharacter((Character) o)); return;
    }
      
    if (o instanceof File) {
      d.append("File ").append(quote(((File) o).getPath())); return;
    }
      
    // referencable objects follow
    
    Integer ref = d.seen.get(o);
    if (o instanceof String && ref == null) ref = d.strings.get((String) o);
    if (ref != null) { /*d.refd.set(ref);*/ d.append("t").app(ref); return; }

    if (!(o instanceof String))
      d.seen.put(o, d.n); // record token number
    else {
      String s = d.stringSizeLimit != 0 ? shorten((String) o, d.stringSizeLimit) : (String) o;
      if (!d.noStringSharing) {
        if (d.shareStringsLongerThan == Integer.MAX_VALUE)
          d.seen.put(o, d.n);
        if (l(s) >= d.shareStringsLongerThan)
          d.strings.put(s, d.n);
      }
      quoteToPrintWriter(s, d.out); d.n++; return;
    }
      
    if (o instanceof Set) {
      /*O set2 = unwrapSynchronizedSet(o);
      if (set2 != o) {
        d.append("sync");
        o = set2;
      } TODO */
      
      if (((Set) o) instanceof TreeSet) {
        d.append(isCISet_gen(((Set) o)) ? "ciset" : "treeset");
        structure_1(new ArrayList(((Set) o)), d);
        return;
      }
      
      // assume it's a HashSet or LinkedHashSet
      d.append(((Set) o) instanceof LinkedHashSet ? "lhs" : "hashset");
      structure_1(new ArrayList(((Set) o)), d);
      return;
    }
    
    String name = c.getName();
    
    if (o instanceof Collection
      && !startsWith(name, "main$")
      /* && neq(name, "main$Concept$RefL") */) {
      
      // it's a list
    
      if (name.equals("java.util.Collections$SynchronizedList")
        || name.equals("java.util.Collections$SynchronizedRandomAccessList")) {
        d.append("sync ");
        { structure_1(unwrapSynchronizedList(((List) o)), d); return; }
      }
      else if (name.equals("java.util.LinkedList")) d.append("ll");
      d.append("[");
      final int l = d.n;
      final Iterator it = ((Collection) o).iterator();
      d.stack.add(new Runnable() {  public void run() { try { 
        if (!it.hasNext())
          d.append("]");
        else {
          d.stack.add(this);
          if (d.n != l) d.append(", ");
          structure_1(it.next(), d);
        }
      
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (!it.hasNext())\r\n          d.append(\"]\");\r\n        else {\r\n          d.sta..."; }});
      return;
    }
    
    if (o instanceof Map && !startsWith(name, "main$")) {
      if (o instanceof LinkedHashMap) d.append("lhm");
      else if (o instanceof HashMap) d.append("hm");
      else if (o instanceof TreeMap)
        d.append(isCIMap_gen(((TreeMap) o)) ? "cimap" : "tm");
      else if (name.equals("java.util.Collections$SynchronizedMap")
        || name.equals("java.util.Collections$SynchronizedSortedMap")
        || name.equals("java.util.Collections$SynchronizedNavigableMap")) {
        d.append("sync "); 
        { structure_1(unwrapSynchronizedMap(((Map) o)), d); return; }
      }
      
      d.append("{");
      final int l = d.n;
      final Iterator it = ((Map) o).entrySet().iterator();
      
      d.stack.add(new Runnable() {
        boolean v = false;
        Map.Entry e;
        
        public void run() {
          if (v) {
            d.append("=");
            v = false;
            d.stack.add(this);
            structure_1(e.getValue(), d);
          } else {
            if (!it.hasNext())
              d.append("}");
            else {
              e = (Map.Entry) it.next();
              v = true;
              d.stack.add(this);
              if (d.n != l) d.append(", ");
              structure_1(e.getKey(), d);
            }
          }
        }
      });
      return;
    }
    
    if (c.isArray()) {
      if (o instanceof byte[]) {
        d.append("ba ").append(quote(bytesToHex((byte[]) o))); return;
      }
  
      final int n = Array.getLength(o);
  
      if (o instanceof boolean[]) {
        String hex = boolArrayToHex((boolean[]) o);
        int i = l(hex);
        while (i > 0 && hex.charAt(i-1) == '0' && hex.charAt(i-2) == '0') i -= 2;
        d.append("boolarray ").append(n).app(" ").append(quote(substring(hex, 0, i))); return;
      }
      
      String atype = "array", sep = ", ";
  
      if (o instanceof int[]) {
        //ret "intarray " + quote(intArrayToHex((int[]) o));
        atype = "intarray";
        sep = " ";
      }
      
      d.append(atype).append("{");
      d.stack.add(new Runnable() {
        int i;
        public void run() {
          if (i >= n)
            d.append("}");
          else {
            d.stack.add(this);
            if (i > 0) d.append(", ");
            structure_1(Array.get(o, i++), d);
          }
        }
      });
      return;
    }
  
    if (o instanceof Class) {
      d.append("class(", 2).append(quote(((Class) o).getName())).append(")"); return;
    }
      
    if (o instanceof Throwable) {
      d.append("exception(", 2).append(quote(((Throwable) o).getMessage())).append(")"); return;
    }
      
    if (o instanceof BitSet) {
      BitSet bs = (BitSet) o;
      d.append("bitset{", 2);
      int l = d.n;
      for (int i = bs.nextSetBit(0); i >= 0; i = bs.nextSetBit(i+1)) {
        if (d.n != l) d.append(", ");
        d.append(i);
      }
      d.append("}"); return;
    }
      
    // Need more cases? This should cover all library classes...
    if (name.startsWith("java.") || name.startsWith("javax.")) {
      d.append("j ").append(quote(str(o))); return; // Hm. this is not unstructure-able
    }
    
    
      
    /*if (name.equals("main$Lisp")) {
      fail("lisp not supported right now");
    }*/
    
    if (info.special) {
      if (info.customSerializer != null) {
        // custom serialization (_serialize method)
        Object o2 = invokeMethod(info.customSerializer, o);
        d.append("cu ");
        String shortName = dropPrefix("main$", name);
        d.append(shortName);
        d.out.append(' ');
        structure_1(o2, d);
        return;
      } else
        if (info.nullInstances) { d.append("null"); return; }
      else throw fail("unknown special type");
    }
    
    String dynName = shortDynamicClassName(o);
    if (concept && !d.concepts.contains(dynName)) {
      d.concepts.add(dynName);
      d.append("c ");
    }
    
    // serialize an object with fields.
    // first, collect all fields and values in fv.
    
    TreeSet<Field> fields = new TreeSet<Field>(new Comparator<Field>() {
      public int compare(Field a, Field b) {
        return stdcompare(a.getName(), b.getName());
      }
    });
    
    Class cc = c;
    while (cc != Object.class) {
      for (Field field : getDeclaredFields_cached(cc)) {
        String fieldName = field.getName();
        if (fieldName.equals("_persistenceInfo"))
          d.persistenceInfo.put(c, field);
        if ((field.getModifiers() & (java.lang.reflect.Modifier.STATIC | java.lang.reflect.Modifier.TRANSIENT)) != 0)
          continue;

        fields.add(field);
        
        // put special cases here...?
      }
        
      cc = cc.getSuperclass();
    }
    
    // TODO: S fieldOrder = getOpt(c, "_fieldOrder");
    lFields = asList(fields);
    
    // Render this$1 first because unstructure needs it for constructor call.
    
    int n = l(lFields);
    for (int i = 0; i < n; i++) {
      Field f = lFields.get(i);
      if (f.getName().equals("this$1")) {
        lFields.remove(i);
        lFields.add(0, f);
        break;
      }
    }
  
    
    info.fields = lFields;
  } // << if (lFields == null)
  else { // ref handling for lFields != null
    Integer ref = d.seen.get(o);
    if (ref != null) { /*d.refd.set(ref);*/ d.append("t").app(ref); return; }
    d.seen.put(o, d.n); // record token number
  }

  Field persistenceInfoField =  (Field) (d.persistenceInfo.get(c));
  Map<String, Object> persistenceInfo = persistenceInfoField == null ? null : (Map) persistenceInfoField.get(o);
  
  LinkedHashMap<String, Object> fv = new LinkedHashMap();
  for (Field f : lFields) {
    Object value;
    try {
      value = f.get(o);
    } catch (Exception e) {
      value = "?";
    }
      
    if (value != null && (persistenceInfo == null
      || !Boolean.FALSE.equals(persistenceInfo.get(f.getName()))))
      fv.put(f.getName(), value);
    
  }
  
  String name = c.getName();
  String shortName = dropPrefix("main$", name);
  if (startsWithDigit(shortName)) shortName = name; // for anonymous classes
    
  // Now we have fields & values. Process fieldValues if it's a DynamicObject.
  
  // omit field "className" if equal to class's name
  if (concept && eq(fv.get("className"), shortName))
    fv.remove("className");
          
  if (o instanceof DynamicObject) {
    putAll(fv, (Map) fv.get("fieldValues"));
    fv.remove("fieldValues");
    shortName = shortDynamicClassName(o);
    fv.remove("className");
  }
  
  String singleField = fv.size() == 1 ? first(fv.keySet()) : null;
  
  d.append(shortName);
  d.n += countDots(shortName)*2; // correct token count
  
  
  final int l = d.n;
  final Iterator it = fv.entrySet().iterator();
  
  d.stack.add(new Runnable() {  public void run() { try { 
    if (!it.hasNext()) {
      if (d.n != l)
        d.append(")");
    } else {
      Map.Entry e = (Map.Entry) it.next();
      d.append(d.n == l ? "(" : ", ");
      d.append((String) e.getKey()).append("=");
      d.stack.add(this);
      structure_1(e.getValue(), d);
    }
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (!it.hasNext()) {\r\n      if (d.n != l)\r\n        d.append(\")\");\r\n    } else..."; }});
} catch (Exception __e) { throw rethrow(__e); } }

static File getProgramFile(String progID, String fileName) {
  if (new File(fileName).isAbsolute())
    return new File(fileName);
  return new File(getProgramDir(progID), fileName);
}

static File getProgramFile(String fileName) {
  return getProgramFile(getProgramID(), fileName);
}

static Object first(Object list) {
  return first((Iterable) list);
}

static <A> A first(List<A> list) {
  return empty(list) ? null : list.get(0);
}

static <A> A first(A[] bla) {
  return bla == null || bla.length == 0 ? null : bla[0];
}



static <A> A first(Iterator<A> i) {
  return i == null || !i.hasNext() ? null : i.next();
}

static <A> A first(Iterable<A> i) {
  if (i == null) return null;
  Iterator<A> it = i.iterator();
  return it.hasNext() ? it.next() : null;
}

static Character first(String s) { return empty(s) ? null : s.charAt(0); }


static <A, B> A first(Pair<A, B> p) {
  return p == null ? null : p.a;
}



static <A, B> Collection<B> values(Map<A, B> map) {
  return map == null ? emptyList() : map.values();
}




static boolean infoMessage_alwaysOnTop = true;
static double infoMessage_defaultTime = 5.0;

// automatically switches to AWT thread for you
static JWindow infoMessage(String text) {
  return infoMessage(text, infoMessage_defaultTime);
}

static JWindow infoMessage(final String text, final double seconds) {
  printHidingCredentials(text);
  return infoMessage_noprint(text, seconds);
}

static JWindow infoMessage_noprint(String text) {
  return infoMessage_noprint(text, infoMessage_defaultTime);
}

static JWindow infoMessage_noprint(final String _text, final double seconds) {
  final String text = hideCredentials(_text);
  if (empty(text)) return null;
  logQuotedWithDate(infoBoxesLogFile(), text); 
  if (isHeadless()) return null;
  return (JWindow) swingAndWait(new F0<Object>() { Object get() { try { 
    final JWindow window = showWindow(infoMessage_makePanel(text));
    window.setSize(300, 150);
    moveToTopRightCorner(window);
    if (infoMessage_alwaysOnTop)
      window.setAlwaysOnTop(true);
    window.setVisible(true);
    if (seconds != 0)
      disposeWindowAfter(iround(seconds*1000), window);
    return window;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "final JWindow window = showWindow(infoMessage_makePanel(text));\r\n    window.s..."; }});
}

static JWindow infoMessage(Throwable e) {
  //showConsole();
  printStackTrace(e);
  return infoMessage(exceptionToStringShort(e));
}
static List dm_optPcallAll(String serviceName, String method, Object... args) {
  return dm_optPcallAll(dm_getServices(serviceName), method, args);
}

// also takes service names
static List dm_optPcallAll(Collection moduleIDs, String method, Object... args) {
  List out = new ArrayList();
  for (Object mod : unnull(moduleIDs))
    addIfNotNull(out, dm_pcallOpt(mod, method, args));
  return out;
}


static String programID;

static String getProgramID() {
  return nempty(programID) ? formatSnippetIDOpt(programID) : "?";
}


// TODO: ask JavaX instead
static String getProgramID(Class c) {
  String id = (String) getOpt(c, "programID");
  if (nempty(id))
    return formatSnippetID(id);
  return "?";
}


static String getProgramID(Object o) {
  return getProgramID(getMainClass(o));
}
static boolean eq(Object a, Object b) {
  return a == b || (a == null ? b == null : b != null && a.equals(b));
}


static boolean isString(Object o) {
  return o instanceof String;
}
static boolean isIdentifier(String s) {
  return isJavaIdentifier(s);
}
static Object dm_getService(String serviceName) {
  return empty(serviceName) ? null : dm_getModule(vmBus_query(assertIdentifier(serviceName)));
}
static boolean isStringOrIntOrLong(Object o) {
  return o instanceof String || o instanceof Integer || o instanceof Long;
}
static Object dm_callOS(String functionName, Object... args) {
  return call(dm_os(), functionName, args);
}
static Object dm_resolveModule(Object moduleOrStem) {
  return dm_callOS("resolveModule", moduleOrStem);
}
static void assertTrue(Object o) {
  if (!(eq(o, true) /*|| isTrue(pcallF(o))*/))
    throw fail(str(o));
}
  
static boolean assertTrue(String msg, boolean b) {
  if (!b)
    throw fail(msg);
  return b;
}

static boolean assertTrue(boolean b) {
  if (!b)
    throw fail("oops");
  return b;
}
static <A> A getWeakRef(Reference<A> ref) {
  return ref == null ? null : ref.get();
}
static Map<Class, ArrayList<Method>> callF_cache = newDangerousWeakHashMap();


  static <A> A callF(F0<A> f) {
    return f == null ? null : f.get();
  }





  static <A> A callF(IF0<A> f) {
    return f == null ? null : f.get();
  }



  static <A, B> B callF(IF1<A, B> f, A a) {
    return f == null ? null : f.get(a);
  }







  static <A> void callF(VF1<A> f, A a) {
    if (f != null) f.get(a);
  }


static Object callF(Object f, Object... args) { try {
  if (f instanceof String)
    return callMCWithVarArgs((String) f, args); // possible SLOWDOWN over callMC
  if (f instanceof Runnable) {
    ((Runnable) f).run();
    return null;
  }
  if (f == null) return null;
  
  Class c = f.getClass();
  ArrayList<Method> methods;
  synchronized(callF_cache) {
    methods = callF_cache.get(c);
    if (methods == null)
      methods = callF_makeCache(c);
  }
  
  int n = l(methods);
  if (n == 0) {
    
    throw fail("No get method in " + getClassName(c));
  }
  if (n == 1) return invokeMethod(methods.get(0), f, args);
  for (int i = 0; i < n; i++) {
    Method m = methods.get(i);
    if (call_checkArgs(m, args, false))
      return invokeMethod(m, f, args);
  }
  throw fail("No matching get method in " + getClassName(c));
} catch (Exception __e) { throw rethrow(__e); } }

// used internally
static ArrayList<Method> callF_makeCache(Class c) {
  ArrayList<Method> l = new ArrayList();
  Class _c = c;
  do {
    for (Method m : _c.getDeclaredMethods())
      if (m.getName().equals("get")) {
        makeAccessible(m);
        l.add(m);
      }
    if (!l.isEmpty()) break;
    _c = _c.getSuperclass();
  } while (_c != null);
  callF_cache.put(c, l);
  return l;
}
static Object callOpt_withVarargs(Object o, String method, Object... args) { try {
  if (o == null) return null;
  
  if (o instanceof Class) {
    Class c = (Class) o;
    _MethodCache cache = callOpt_getCache(c);
    
    Method me = cache.findMethod(method, args);
    if (me == null) {
      // TODO: varargs
      return null;
    }
    if ((me.getModifiers() & Modifier.STATIC) == 0)
      return null;
    return invokeMethod(me, null, args);
  } else {
    Class c = o.getClass();
    _MethodCache cache = callOpt_getCache(c);

    Method me = cache.findMethod(method, args);
    if (me != null)
      return invokeMethod(me, o, args);
      
    // try varargs
    List<Method> methods = cache.cache.get(method);
    if (methods != null) methodSearch: for (Method m : methods) {
      { if (!(m.isVarArgs())) continue; }
      Object[] newArgs = massageArgsForVarArgsCall(m, args);
      if (newArgs != null)
        return invokeMethod(m, o, newArgs);
    }
    
    return null;
  }
} catch (Exception __e) { throw rethrow(__e); } }
static Object dm_getStemByID(Object id) {
  return dm_callOS("getModuleByID", str(id));
}
static <A> A or(A a, A b) {
  return a != null ? a : b;
}
static Object getOpt(Object o, String field) {
  return getOpt_cached(o, field);
}

static Object getOpt(String field, Object o) {
  return getOpt_cached(o, field);
}

static Object getOpt_raw(Object o, String field) { try {
  Field f = getOpt_findField(o.getClass(), field);
  if (f == null) return null;
  makeAccessible(f);
  return f.get(o);
} catch (Exception __e) { throw rethrow(__e); } }

// access of static fields is not yet optimized
static Object getOpt(Class c, String field) { try {
  if (c == null) return null;
  Field f = getOpt_findStaticField(c, field);
  if (f == null) return null;
  makeAccessible(f);
  return f.get(null);
} catch (Exception __e) { throw rethrow(__e); } }

static Field getOpt_findStaticField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field) && (f.getModifiers() & java.lang.reflect.Modifier.STATIC) != 0)
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}



static String _userHome;
static String userHome() {
  if (_userHome == null)
    return actualUserHome();
  return _userHome;
}

static File userHome(String path) {
  return new File(userDir(), path);
}
static File newFile(File base, String... names) {
  for (String name : names) base = new File(base, name);
  return base;
}

static File newFile(String name) {
  return name == null ? null : new File(name);
}

static File newFile(String base, String... names) {
  return newFile(newFile(base), names);
}
static <A> int iteratorCount_int_close(Iterator<A> i) { try {
  int n = 0;
  if (i != null) while (i.hasNext()) { i.next(); ++n; }
  if (i instanceof AutoCloseable) ((AutoCloseable) i).close();
  return n;
} catch (Exception __e) { throw rethrow(__e); } }
static Object call(Object o) {
  return callF(o);
}

// varargs assignment fixer for a single string array argument
static Object call(Object o, String method, String[] arg) {
  return call(o, method, new Object[] {arg});
}

static Object call(Object o, String method, Object... args) {
  //ret call_cached(o, method, args);
  return call_withVarargs(o, method, args);
}
static <A, B> Map<A, B> cloneMap(Map<A, B> map) {
  if (map == null) return new HashMap();
  // assume mutex is equal to map
  synchronized(map) {
    return map instanceof TreeMap ? new TreeMap((TreeMap) map) // copies comparator
      : map instanceof LinkedHashMap ? new LinkedHashMap(map)
      : new HashMap(map);
  }
}

static <A, B> List<B> cloneMap(Iterable<A> l, IF1<A, B> f) {
  List x = emptyList(l);
  if (l != null) for (A o : cloneList(l))
    x.add(f.get(o));
  return x;
}
static boolean even(int i) {
  return (i & 1) == 0;
}

static boolean even(long i) {
  return (i & 1) == 0;
}
static <A, B> LinkedHashMap<A, B> asLinkedHashMap(Map<A, B> map) {
  if (map instanceof LinkedHashMap) return (LinkedHashMap) map;
  LinkedHashMap<A, B> m = new LinkedHashMap();
  if (map != null) synchronized(collectionMutex(map)) {
    m.putAll(map);
  }
  return m;
}
static Map paramsToMap(Object... params) {
  int n = l(params);
  if (l(params) == 1 && params[0] instanceof Map) return (Map) params[0];
  LinkedHashMap map = new LinkedHashMap();
  for (int i = 0; i+1 < n; i += 2)
    mapPut(map, params[i], params[i+1]);
  return map;
}
static Object[] mapToObjectArray(Map map) {
  List l = new ArrayList();
  for (Object o : keys(map)) {
    l.add(o);
    l.add(map.get(o));
  }
  return toObjectArray(l);
}

static Object[] mapToObjectArray(Object f, Collection l) {
  int n = l(l);
  Object[] array = new Object[n];
  if (n != 0) {
    Iterator it = iterator(l);
    for (int i = 0; i < n; i++)
      array[i] = callF(f, it.next());
  }
  return array;
}

static Object[] mapToObjectArray(Object f, Object[] l) {
  int n = l(l);
  Object[] array = new Object[n];
  for (int i = 0; i < n; i++)
    array[i] = callF(f, l[i]);
  return array;
}
//sbool ping_actions_shareable = true;
static volatile boolean ping_pauseAll = false;
static int ping_sleep = 100; // poll pauseAll flag every 100

static volatile boolean ping_anyActions = false;
static Map<Thread, Object> ping_actions = newWeakHashMap();
static ThreadLocal<Boolean> ping_isCleanUpThread = new ThreadLocal();


// always returns true
static boolean ping() {
  if (ping_pauseAll  || ping_anyActions ) ping_impl(true /* XXX */);
  //ifndef LeanMode ping_impl(); endifndef
  return true;
}

// returns true when it slept
static boolean ping_impl(boolean okInCleanUp) { try {
  if (ping_pauseAll && !isAWTThread()) {
    do
      Thread.sleep(ping_sleep);
    while (ping_pauseAll);
    return true;
  }
  
  
  if (ping_anyActions) { // don't allow sharing ping_actions
    if (!okInCleanUp && !isTrue(ping_isCleanUpThread.get()))
      failIfUnlicensed();
    Object action = null;
    synchronized(ping_actions) {
      if (!ping_actions.isEmpty()) {
        action = ping_actions.get(currentThread());
        if (action instanceof Runnable)
          ping_actions.remove(currentThread());
        if (ping_actions.isEmpty()) ping_anyActions = false;
      }
    }
    
    if (action instanceof Runnable)
      ((Runnable) action).run();
    else if (eq(action, "cancelled"))
      throw fail("Thread cancelled.");
  }
  
  
  return false;
} catch (Exception __e) { throw rethrow(__e); } }


static volatile StringBuffer local_log = new StringBuffer(); // not redirected


static volatile Appendable print_log = local_log; // might be redirected, e.g. to main bot

// in bytes - will cut to half that
static volatile int print_log_max = 1024*1024;
static volatile int local_log_max = 100*1024;

static boolean print_silent = false; // total mute if set

static Object print_byThread_lock = new Object();
static volatile ThreadLocal<Object> print_byThread; // special handling by thread - prefers F1<S, Bool>
static volatile Object print_allThreads;
static volatile Object print_preprocess;

static void print() {
  print("");
}

static <A> A print(String s, A o) {
  print((endsWithLetterOrDigit(s) ? s + ": " : s) + o);
  return o;
}

// slightly overblown signature to return original object...
static <A> A print(A o) {
  ping_okInCleanUp();
  if (print_silent) return o;
  String s = String.valueOf(o) + "\n";
  print_noNewLine(s);
  return o;
}

static void print_noNewLine(String s) {
  
  Object f = getThreadLocal(print_byThread_dontCreate());
  if (f == null) f = print_allThreads;
  if (f != null)
    // We do need the general callF machinery here as print_byThread is sometimes shared between modules
    if (isFalse(
      
      callF(f, s))) return;
  

  print_raw(s);
}

static void print_raw(String s) {
  
  if (print_preprocess != null) s = (String) callF(print_preprocess, s);
  s = fixNewLines(s);
  
  Appendable loc = local_log;
  Appendable buf = print_log;
  int loc_max = print_log_max;
  if (buf != loc && buf != null) {
    print_append(buf, s, print_log_max);
    loc_max = local_log_max;
  }
  if (loc != null) 
    print_append(loc, s, loc_max);
  System.out.print(s);
}

static void print_autoRotate() {
  
}
static <A extends Throwable> A printStackTrace(A e) {
  // we go to system.out now - system.err is nonsense
  print(getStackTrace(e));
  return e;
}

static void printStackTrace() {
  printStackTrace(new Throwable());
}

static void printStackTrace(String msg) {
  printStackTrace(new Throwable(msg));
}

static void printStackTrace(String msg, Throwable e) {
  printStackTrace(new Throwable(msg, e));
}
static RuntimeException rethrow(Throwable t) {
  
  if (t instanceof Error)
    _handleError((Error) t);
  
  throw t instanceof RuntimeException ? (RuntimeException) t : new RuntimeException(t);
}

static RuntimeException rethrow(String msg, Throwable t) {
  throw new RuntimeException(msg, t);
}
static void lockOrFail(Lock lock, long timeout) { try {
  ping();
  if (!lock.tryLock(timeout, TimeUnit.MILLISECONDS)) {
    String s = "Couldn't acquire lock after " + timeout + " ms.";
    if (lock instanceof ReentrantLock) {
      ReentrantLock l =  (ReentrantLock) lock;
      s += " Hold count: " + l.getHoldCount() + ", owner: " + call(l, "getOwner");
    }
    throw fail(s);
  }
  ping();
} catch (Exception __e) { throw rethrow(__e); } }
static ReentrantLock fairLock() {
  return new ReentrantLock(true);
}
static ThreadLocal<VF1<File>> checkFileNotTooBigToRead_tl = new ThreadLocal();

static void checkFileNotTooBigToRead(File f) {
  callF(checkFileNotTooBigToRead_tl.get(), f);
}
static Random defaultRandomGenerator() {
  return ThreadLocalRandom.current();
}
static List<CriticalAction> beginCriticalAction_inFlight = synchroList();

static class CriticalAction {
  String description;
  
  CriticalAction() {}
  CriticalAction(String description) {
  this.description = description;}
  
  void done() {
    beginCriticalAction_inFlight.remove(this);
  }
}

static CriticalAction beginCriticalAction(String description) {
  ping();
  CriticalAction c = new CriticalAction(description);
  beginCriticalAction_inFlight.add(c);
  return c;
}

static void cleanMeUp_beginCriticalAction() {
  int n = 0;
  while (nempty(beginCriticalAction_inFlight)) {
    int m = l(beginCriticalAction_inFlight);
    if (m != n) {
      n = m;
      try {
        print("Waiting for " + n2(n, "critical actions") + ": " + join(", ", collect(beginCriticalAction_inFlight, "description")));
      } catch (Throwable __e) { _handleException(__e); }
    }
    sleepInCleanUp(10);
  }
}
public static File mkdirsForFile(File file) {
  File dir = file.getParentFile();
  if (dir != null) { // is null if file is in current dir
    dir.mkdirs();
    if (!dir.isDirectory())
      if (dir.isFile()) throw fail("Please delete the file " + f2s(dir) + " - it is supposed to be a directory!");
      else throw fail("Unknown IO exception during mkdirs of " + f2s(file));
  }
  return file;
}

public static String mkdirsForFile(String path) {
  mkdirsForFile(new File(path));
  return path;
}
static File copyFile(File src, File dest) { try {
  FileInputStream inputStream = new FileInputStream(src.getPath());
  FileOutputStream outputStream = newFileOutputStream(dest.getPath());
  try {
    copyStream(inputStream, outputStream);
    inputStream.close();
  } finally {
    outputStream.close();
  }
  return dest;
} catch (Exception __e) { throw rethrow(__e); } }
static FileOutputStream newFileOutputStream(File path) throws IOException {
  return newFileOutputStream(path.getPath());
}

static FileOutputStream newFileOutputStream(String path) throws IOException {
  return newFileOutputStream(path, false);
}

static FileOutputStream newFileOutputStream(File path, boolean append) throws IOException {
  return newFileOutputStream(path.getPath(), append);
}

static FileOutputStream newFileOutputStream(String path, boolean append) throws IOException {
  mkdirsForFile(path);
  FileOutputStream f = new FileOutputStream(path, append);
  
  _registerIO(f, path, true);
  
  return f;
}
static void vmBus_send(String msg, Object... args) {
  Object arg = vmBus_wrapArgs(args);
  pcallFAll(vm_busListeners_live(), msg, arg);
  pcallFAll(vm_busListenersByMessage_live().get(msg), msg, arg);
}

static void vmBus_send(String msg) {
  vmBus_send(msg, (Object) null);
}
static Lock appendToFile_lock = lock();
static boolean appendToFile_keepOpen = false;
static HashMap<String, Writer> appendToFile_writers = new HashMap();

static void appendToFile(String path, String s) { try {
  Lock __0 = appendToFile_lock; lock(__0); try { // Let's just generally synchronize this to be safe.
  mkdirsForFile(new File(path));
  path = getCanonicalPath(path);
  Writer writer = appendToFile_writers.get(path);
  if (writer == null) {
    //print("[Logging to " + path + "]");
    writer = new BufferedWriter(new OutputStreamWriter(
      newFileOutputStream(path, true), "UTF-8"));
    if (appendToFile_keepOpen)
      appendToFile_writers.put(path, writer);
  }
  writer.write(s);
  if (!appendToFile_keepOpen)
    writer.close();
} finally { unlock(__0); } } catch (Exception __e) { throw rethrow(__e); } }
  
static void appendToFile(File path, String s) {
  if (path != null)
    appendToFile(path.getPath(), s);
}

static void cleanMeUp_appendToFile() {
   AutoCloseable __2 = tempCleaningUp(); try {
  Lock __1 = appendToFile_lock; lock(__1); try {
  closeAllWriters(values(appendToFile_writers));
  appendToFile_writers.clear();
} finally { unlock(__1); } } finally { _close(__2); }}
static <A> A assertEquals(Object x, A y) {
  return assertEquals(null, x, y);
}

static <A> A assertEquals(String msg, Object x, A y) {
  if (assertVerbose()) return assertEqualsVerbose(msg, x, y);
  if (!(x == null ? y == null : x.equals(y)))
    throw fail((msg != null ? msg + ": " : "") + y + " != " + x);
  return y;
}
static List<String> javaTokC(String s) {
  if (s == null) return null;
  int l = s.length();
  ArrayList<String> tok = new ArrayList();
  
  int i = 0;
  while (i < l) {
    int j = i;
    char c, d;
    
    // scan for whitespace
    while (j < l) {
      c = s.charAt(j);
      d = j+1 >= l ? '\0' : s.charAt(j+1);
      if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
        ++j;
      else if (c == '/' && d == '*') {
        do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/"));
        j = Math.min(j+2, l);
      } else if (c == '/' && d == '/') {
        do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
      } else
        break;
    }
    
    i = j;
    if (i >= l) break;
    c = s.charAt(i);
    d = i+1 >= l ? '\0' : s.charAt(i+1);

    // scan for non-whitespace
    if (c == '\'' || c == '"') {
      char opener = c;
      ++j;
      while (j < l) {
        if (s.charAt(j) == opener || s.charAt(j) == '\n') { // end at \n to not propagate unclosed string literal errors
          ++j;
          break;
        } else if (s.charAt(j) == '\\' && j+1 < l)
          j += 2;
        else
          ++j;
      }
    } else if (Character.isJavaIdentifierStart(c))
      do ++j; while (j < l && (Character.isJavaIdentifierPart(s.charAt(j)) || "'".indexOf(s.charAt(j)) >= 0)); // for stuff like "don't"
    else if (Character.isDigit(c)) {
      do ++j; while (j < l && Character.isDigit(s.charAt(j)));
      if (j < l && s.charAt(j) == 'L') ++j; // Long constants like 1L
    } else if (c == '[' && d == '[') {
      do ++j; while (j+1 < l && !s.substring(j, j+2).equals("]]"));
      j = Math.min(j+2, l);
    } else if (c == '[' && d == '=' && i+2 < l && s.charAt(i+2) == '[') {
      do ++j; while (j+2 < l && !s.substring(j, j+3).equals("]=]"));
      j = Math.min(j+3, l);
    } else
      ++j;
      
    tok.add(javaTok_substringC(s, i, j));
    i = j;
  }
  
  return tok;
}
static boolean nempty(Collection c) {
  return !empty(c);
}

static boolean nempty(CharSequence s) {
  return !empty(s);
}

static boolean nempty(Object[] o) { return !empty(o); }
static boolean nempty(byte[] o) { return !empty(o); }
static boolean nempty(int[] o) { return !empty(o); }

static boolean nempty(Map m) {
  return !empty(m);
}

static boolean nempty(Iterator i) {
  return i != null && i.hasNext();
}

static boolean nempty(Object o) { return !empty(o); }
static <A> A popLast(List<A> l) {
  return liftLast(l);
}

static <A> List<A> popLast(int n, List<A> l) {
  return liftLast(n, l);
}
// This is a bit rough... finds static and non-static methods.

static Method findMethodNamed(Object obj, String method) {
  if (obj == null) return null;
  if (obj instanceof Class)
    return findMethodNamed((Class) obj, method);
  return findMethodNamed(obj.getClass(), method);
}

static Method findMethodNamed(Class c, String method) {
  while (c != null) {
    for (Method m : c.getDeclaredMethods())
      if (m.getName().equals(method)) {
        makeAccessible(m);
        return m;
      }
    c = c.getSuperclass();
  }
  return null;
}
static void quoteToPrintWriter(String s, PrintWriter out) {
  if (s == null) { out.print("null"); return; }
  out.print('"');
  int l = s.length();
  for (int i = 0; i < l; i++) {
    char c = s.charAt(i);
    if (c == '\\' || c == '"') {
      out.print('\\'); out.print(c);
    } else if (c == '\r')
      out.print("\\r");
    else if (c == '\n')
      out.print("\\n");
    else if (c == '\0')
      out.print("\\0");
    else
      out.print(c);
  }
  out.print('"');
}
static String quoteCharacter(char c) {
  if (c == '\'') return "'\\''";
  if (c == '\\') return "'\\\\'";
  if (c == '\r') return "'\\r'";
  if (c == '\n') return "'\\n'";
  if (c == '\t') return "'\\t'";
  return "'" + c + "'";
}

static int shorten_default = 100;

static String shorten(String s) { return shorten(s, shorten_default); }

static String shorten(String s, int max) {
  return shorten(s, max, "...");
}

static String shorten(String s, int max, String shortener) {
  if (s == null) return "";
  if (max < 0) return s;
  return s.length() <= max ? s : substring(s, 0, min(s.length(), max-l(shortener))) + shortener;
}

static String shorten(int max, String s) { return shorten(s, max); }
static boolean isCISet_gen(Iterable<String> l) {
  return l instanceof TreeSet && className(((TreeSet) l).comparator()).contains("CIComp");
}
static boolean startsWith(String a, String b) {
  return a != null && a.startsWith(b);
}

static boolean startsWith(String a, char c) {
  return nemptyString(a) && a.charAt(0) == c;
}



static boolean startsWith(List a, List b) {
  if (a == null || listL(b) > listL(a)) return false;
  for (int i = 0; i < listL(b); i++)
    if (neq(a.get(i), b.get(i)))
      return false;
  return true;
}


static <A> List<A> unwrapSynchronizedList(List<A> l) {
  if (eqOneOf(className(l),
    "java.util.Collections$SynchronizedList",
    "java.util.Collections$SynchronizedRandomAccessList"))
    return (List) get_raw(l, "list");
  return l;
}
static boolean isCIMap_gen(Map map) {
  return map instanceof TreeMap && className(((TreeMap) map).comparator()).contains("CIComp");
}
static <A, B> Map<A, B> unwrapSynchronizedMap(Map<A, B> map) {
  if (eqOneOf(className(map),
    "java.util.Collections$SynchronizedMap",
    "java.util.Collections$SynchronizedSortedMap",
    "java.util.Collections$SynchronizedNavigableMap"))
    return (Map) get_raw(map, "m");
  return map;
}
  public static String bytesToHex(byte[] bytes) {
    return bytesToHex(bytes, 0, bytes.length);
  }

  public static String bytesToHex(byte[] bytes, int ofs, int len) {
    StringBuilder stringBuilder = new StringBuilder(len*2);
    for (int i = 0; i < len; i++) {
      String s = "0" + Integer.toHexString(bytes[ofs+i]);
      stringBuilder.append(s.substring(s.length()-2, s.length()));
    }
    return stringBuilder.toString();
  }

static String boolArrayToHex(boolean[] a) {
  return bytesToHex(boolArrayToBytes(a));
}
static String substring(String s, int x) {
  return substring(s, x, strL(s));
}

static String substring(String s, int x, int y) {
  if (s == null) return null;
  if (x < 0) x = 0;
  if (x >= s.length()) return "";
  if (y < x) y = x;
  if (y > s.length()) y = s.length();
  return s.substring(x, y);
}


static Iterator emptyIterator() {
  return Collections.emptyIterator();
}
static Object invokeMethod(Method m, Object o, Object... args) { try {
  try {
    return m.invoke(o, args);
  } catch (InvocationTargetException e) {
    throw rethrow(getExceptionCause(e));
  } catch (IllegalArgumentException e) {
    throw new IllegalArgumentException(e.getMessage() + " - was calling: " + m + ", args: " + joinWithSpace(classNames(args)));
  }
} catch (Exception __e) { throw rethrow(__e); } }
static String dropPrefix(String prefix, String s) {
  return s == null ? null : s.startsWith(prefix) ? s.substring(l(prefix)) : s;
}
static RuntimeException fail() { throw new RuntimeException("fail"); }
static RuntimeException fail(Throwable e) { throw asRuntimeException(e); }
static RuntimeException fail(Object msg) { throw new RuntimeException(String.valueOf(msg)); }
static RuntimeException fail(String msg) { throw new RuntimeException(msg == null ? "" : msg); }
static RuntimeException fail(String msg, Throwable innerException) { throw new RuntimeException(msg, innerException); }

static String shortDynamicClassName(Object o) {
 if (o instanceof DynamicObject && ((DynamicObject) o).className != null)
    return ((DynamicObject) o).className;
  return shortClassName(o);
}
static int stdcompare(Number a, Number b) {
  return cmp(a, b);
}

static int stdcompare(String a, String b) {
  return cmp(a, b);
}

static int stdcompare(long a, long b) {
  return a < b ? -1 : a > b ? 1 : 0;
}

static int stdcompare(Object a, Object b) {
  return cmp(a, b);
}

static Map<Class, Field[]> getDeclaredFields_cache = newDangerousWeakHashMap();

static Field[] getDeclaredFields_cached(Class c) {
  Field[] fields;
  synchronized(getDeclaredFields_cache) {
    fields = getDeclaredFields_cache.get(c);
    if (fields == null) {
      getDeclaredFields_cache.put(c, fields = c.getDeclaredFields());
      for (Field f : fields)
        makeAccessible(f);
    }
  }
  return fields;
}
static <A> ArrayList<A> asList(A[] a) {
  return a == null ? new ArrayList<A>() : new ArrayList<A>(Arrays.asList(a));
}

static ArrayList<Integer> asList(int[] a) {
  if (a == null) return null;
  ArrayList<Integer> l = emptyList(a.length);
  for (int i : a) l.add(i);
  return l;
}

static ArrayList<Float> asList(float[] a) {
  if (a == null) return null;
  ArrayList<Float> l = emptyList(a.length);
  for (float i : a) l.add(i);
  return l;
}
static <A> ArrayList<A> asList(Iterable<A> s) {
  if (s instanceof ArrayList) return (ArrayList) s;
  ArrayList l = new ArrayList();
  if (s != null)
    for (A a : s)
      l.add(a);
  return l;
}



static <A> ArrayList<A> asList(Enumeration<A> e) {
  ArrayList l = new ArrayList();
  if (e != null)
    while (e.hasMoreElements())
      l.add(e.nextElement());
  return l;
}
static boolean startsWithDigit(String s) {
  return nempty(s) && isDigit(s.charAt(0));
}
static <A, B> Map<A, B> putAll(Map<A, B> a, Map<? extends A,? extends B> b) {
  if (a != null && b != null) a.putAll(b);
  return a;
}
static int countDots(String s) {
  int n = l(s), count = 0;
  for (int i = 0; i < n; i++) if (s.charAt(i) == '.') ++count;
  return count;
}
static File getProgramDir() {
  return programDir();
}

static File getProgramDir(String snippetID) {
  return programDir(snippetID);
}
static boolean empty(Collection c) { return c == null || c.isEmpty(); }
static boolean empty(CharSequence s) { return s == null || s.length() == 0; }
static boolean empty(Map map) { return map == null || map.isEmpty(); }
static boolean empty(Object[] o) { return o == null || o.length == 0; }
static boolean empty(Object o) {
  if (o instanceof Collection) return empty((Collection) o);
  if (o instanceof String) return empty((String) o);
  if (o instanceof Map) return empty((Map) o);
  if (o instanceof Object[]) return empty((Object[]) o);
  if (o instanceof byte[]) return empty((byte[]) o);
  if (o == null) return true;
  throw fail("unknown type for 'empty': " + getType(o));
}

static boolean empty(Iterator i) { return i == null || !i.hasNext(); }

static boolean empty(float[] a) { return a == null || a.length == 0; }
static boolean empty(int[] a) { return a == null || a.length == 0; }
static boolean empty(long[] a) { return a == null || a.length == 0; }
static boolean empty(byte[] a) { return a == null || a.length == 0; }
static boolean empty(short[] a) { return a == null || a.length == 0; }



static boolean empty(File f) { return getFileSize(f) == 0; }
static ArrayList emptyList() {
  return new ArrayList();
  //ret Collections.emptyList();
}

static ArrayList emptyList(int capacity) {
  return new ArrayList(max(0, capacity));
}

// Try to match capacity
static ArrayList emptyList(Iterable l) {
  return l instanceof Collection ? emptyList(((Collection) l).size()) : emptyList();
}

static ArrayList emptyList(Object[] l) {
  return emptyList(l(l));
}

// get correct type at once
static <A> ArrayList<A> emptyList(Class<A> c) {
  return new ArrayList();
}
static <A> List<A> concatLists(Collection<A>... lists) {
  List<A> l = new ArrayList();
  if (lists != null) for (Collection<A> list : lists)
    if (list != null)
      l.addAll(list);
  return l;
}

static <A> List<A> concatLists(Collection<? extends Collection<A>> lists) {
  List<A> l = new ArrayList();
  if (lists != null) for (Collection<A> list : lists)
    if (list != null)
      l.addAll(list);
  return l;
}

static <A> A printHidingCredentials(A o) {
  print(hideCredentials(str(o)));
  return o;
}
static String hideCredentials(URL url) { return url == null ? null : hideCredentials(str(url)); }

static String hideCredentials(String url) {
  try {
    if (startsWithOneOf(url, "http://", "https://") && isAGIBlueDomain(hostNameFromURL(url))) return url;
  } catch (Throwable e) {
    print("HideCredentials", e);
  }
  return url.replaceAll("([&?])(_pass|key)=[^&\\s\"]*", "$1$2=<hidden>");
}

static String hideCredentials(Object o) {
  return hideCredentials(str(o));
}
static void logQuotedWithDate(String s) {
  logQuotedWithTime(s);
}

static void logQuotedWithDate(String logFile, String s) {
  logQuotedWithTime(logFile, s);
}

static void logQuotedWithDate(File logFile, String s) {
  logQuotedWithTime(logFile, s);
}
static File infoBoxesLogFile() {
  return new File(javaxDataDir(), "Logs/infoBoxes.txt");
}
static Boolean isHeadless_cache;

static boolean isHeadless() {
  if (isHeadless_cache != null) return isHeadless_cache;
  if (isAndroid()) return isHeadless_cache = true;
  if (GraphicsEnvironment.isHeadless()) return isHeadless_cache = true;
  
  // Also check if AWT actually works.
  // If DISPLAY variable is set but no X server up, this will notice.
  
  try {
    SwingUtilities.isEventDispatchThread();
    return isHeadless_cache = false;
  } catch (Throwable e) { return isHeadless_cache = true; }
}
static void swingAndWait(Runnable r) { try {
  if (isAWTThread())
    r.run();
  else
    EventQueue.invokeAndWait(addThreadInfoToRunnable(r));
} catch (Exception __e) { throw rethrow(__e); } }

static Object swingAndWait(final Object f) {
  if (isAWTThread())
    return callF(f);
  else {
    final Var result = new Var();
    swingAndWait(new Runnable() {  public void run() { try { 
      result.set(callF(f));
    
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "result.set(callF(f));"; }});
    return result.get();
  }
}
static JWindow showWindow(Component c) {
  JWindow w = new JWindow();
  w.add(wrap(c));
  return w;
}
static JPanel infoMessage_makePanel(String text) {
  final JTextArea ta = wrappedTextArea(text);
  onClick(ta, new Runnable() {  public void run() { try {  disposeWindow(ta) ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "disposeWindow(ta)"; }});
  int size = 14;
  if (l(text) <= 50) size *= 2;
  else if (l(text) < 100) size = iround(size*1.5);
  ta.setFont(typeWriterFont(size));
  JScrollPane sp = jscroll(ta);
  return withMargin(sp);
}
static int moveToTopRightCorner_inset = 20;

static <A extends Component> A moveToTopRightCorner(A a) {
  return moveToTopRightCorner(moveToTopRightCorner_inset, moveToTopRightCorner_inset, a);
}

static <A extends Component> A moveToTopRightCorner(int insetX, int insetY, A a) {
  Window w = getWindow(a);
  if (w != null)
    w.setLocation(getScreenSize().width-w.getWidth()-insetX, insetY);
  return a;
}

static <A extends Window> A disposeWindowAfter(int delay, final A w) {
  if (w != null)
    swingLater(delay, new Runnable() {  public void run() { try { 
      w.dispose();
    
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "w.dispose();"; }});
  return w;
}

static <A extends Window> A disposeWindowAfter(A w, double seconds) {
  return disposeWindowAfter(toMS_int(seconds), w);
}

static <A extends Window> A disposeWindowAfter(double seconds, A w) {
  return disposeWindowAfter(w, seconds);
}
static int iround(double d) {
  return (int) Math.round(d);
}

static int iround(Number n) {
  return iround(toDouble(n));
}
static String exceptionToStringShort(Throwable e) {
  lastException(e);
  e = getInnerException(e);
  String msg = hideCredentials(unnull(e.getMessage()));
  if (msg.indexOf("Error") < 0 && msg.indexOf("Exception") < 0)
    return baseClassName(e) + prependIfNempty(": ", msg);
  else
    return msg;
}
static List dm_getServices(String serviceName) {
  return empty(serviceName) ? null : mapNonNulls(__16 -> dm_getModule(__16),vmBus_queryAll(assertIdentifier(serviceName)));
}
static String unnull(String s) {
  return s == null ? "" : s;
}

static <A> Collection<A> unnull(Collection<A> l) {
  return l == null ? emptyList() : l;
}

static <A> List<A> unnull(List<A> l) {
  return l == null ? emptyList() : l;
}

static <A, B> Map<A, B> unnull(Map<A, B> l) {
  return l == null ? emptyMap() : l;
}

static <A> Iterable<A> unnull(Iterable<A> i) {
  return i == null ? emptyList() : i;
}

static <A> A[] unnull(A[] a) {
  return a == null ? (A[]) new Object[0] : a;
}

static BitSet unnull(BitSet b) {
  return b == null ? new BitSet() : b;
}



//ifclass Symbol



static <A, B> Pair<A, B> unnull(Pair<A, B> p) {
  return p != null ? p : new Pair(null, null);
}

static <A> void addIfNotNull(Collection<A> l, A a) {
  if (a != null && l != null) l.add(a);
}


static <A> A dm_pcallOpt(Object moduleOrID, String method, Object... args) { try {
  return dm_callModuleOpt(moduleOrID, method, args);
} catch (Throwable __e) { return null; } }
static String formatSnippetIDOpt(String s) {
  return isSnippetID(s) ? formatSnippetID(s) : s;
}
static String formatSnippetID(String id) {
  return "#" + parseSnippetID(id);
}

static String formatSnippetID(long id) {
  return "#" + id;
}
static Class getMainClass() {
  return mc();
}

static Class getMainClass(Object o) { try {
  if (o == null) return null;
  if (o instanceof Class && eq(((Class) o).getName(), "x30")) return (Class) o;
  return (o instanceof Class ? (Class) o : o.getClass()).getClassLoader().loadClass("main");
} catch (Exception __e) { throw rethrow(__e); } }
static boolean isJavaIdentifier(String s) {
  if (empty(s) || !Character.isJavaIdentifierStart(s.charAt(0)))
    return false;
  for (int i = 1; i < s.length(); i++)
    if (!Character.isJavaIdentifierPart(s.charAt(i)))
      return false;
  return true;
}
static Object vmBus_query(String msg, Object... args) {
  Object arg = vmBus_wrapArgs(args);
  { Object __1= pcallFAll_returnFirstNotNull(vm_busListeners_live(), msg, arg); if (__1 != null) return __1; }
  return pcallFAll_returnFirstNotNull(vm_busListenersByMessage_live().get(msg), msg, arg);
}

static Object vmBus_query(String msg) {
  return vmBus_query(msg, (Object) null);
}
static String assertIdentifier(String s) {
  return assertIsIdentifier(s);
}

static String assertIdentifier(String msg, String s) {
  return assertIsIdentifier(msg, s);
}
static Object dm_os() {
  { Object __1= vm_generalMap_get("stefansOS"); if (__1 != null) return __1; }
  return creator();
}
static <A, B> Map<A, B> newDangerousWeakHashMap() {
  return _registerDangerousWeakMap(synchroMap(new WeakHashMap()));
}

// initFunction: voidfunc(Map) - is called initially, and after clearing the map
static <A, B> Map<A, B> newDangerousWeakHashMap(Object initFunction) {
  return _registerDangerousWeakMap(synchroMap(new WeakHashMap()), initFunction);
}
static Object callMCWithVarArgs(String method, Object... args) {
  return call_withVarargs(mc(), method, args);
}
static String getClassName(Object o) {
  return o == null ? "null" : o instanceof Class ? ((Class) o).getName() : o.getClass().getName();
}
static boolean call_checkArgs(Method m, Object[] args, boolean debug) {
  Class<?>[] types = m.getParameterTypes();
  if (types.length != args.length) {
    if (debug)
      print("Bad parameter length: " + args.length + " vs " + types.length);
    return false;
  }
  for (int i = 0; i < types.length; i++) {
    Object arg = args[i];
    if (!(arg == null ? !types[i].isPrimitive()
      : isInstanceX(types[i], arg))) {
      if (debug)
        print("Bad parameter " + i + ": " + arg + " vs " + types[i]);
      return false;
    }
  }
  return true;
}
static Field makeAccessible(Field f) {
  try {
    f.setAccessible(true);
  } catch (Throwable e) {
    // Note: The error reporting only works with Java VM option --illegal-access=deny
    vmBus_send("makeAccessible_error",e, f);
  }
  return f;
}

static Method makeAccessible(Method m) {
  try {
    m.setAccessible(true);
  } catch (Throwable e) {
    vmBus_send("makeAccessible_error",e, m);
  }
  return m;
}

static Constructor makeAccessible(Constructor c) {
  try {
    c.setAccessible(true);
  } catch (Throwable e) {
    vmBus_send("makeAccessible_error",e, c);
  }
  return c;
}
static final Map<Class, _MethodCache> callOpt_cache = newDangerousWeakHashMap();

static Object callOpt_cached(Object o, String methodName, Object... args) { try {
  if (o == null) return null;
  
  if (o instanceof Class) {
    Class c = (Class) o;
    _MethodCache cache = callOpt_getCache(c);
    
    // TODO: (super-rare) case where method exists static and non-static
    // with different args
    
    Method me = cache.findMethod(methodName, args);
    if (me == null || (me.getModifiers() & Modifier.STATIC) == 0) return null;
    return invokeMethod(me, null, args);
  } else {
    Class c = o.getClass();
    _MethodCache cache = callOpt_getCache(c);

    Method me = cache.findMethod(methodName, args);
    if (me == null) return null;
    return invokeMethod(me, o, args);
  }
} catch (Exception __e) { throw rethrow(__e); } }

static _MethodCache callOpt_getCache(Class c) {
  synchronized(callOpt_cache) {
    _MethodCache cache = callOpt_cache.get(c);
    if (cache == null)
      callOpt_cache.put(c, cache = new _MethodCache(c));
    return cache;
  }
}
static Object[] massageArgsForVarArgsCall(Method m, Object[] args) {
  Class<?>[] types = m.getParameterTypes();
  int n = types.length-1, nArgs = args.length;
  if (nArgs < n) return null;
  for (int i = 0; i < n; i++)
    if (!argumentCompatibleWithType(args[i], types[i]))
      return null;
  Class varArgType = types[n].getComponentType();
  for (int i = n; i < nArgs; i++)
    if (!argumentCompatibleWithType(args[i], varArgType))
      return null;
  Object[] newArgs = new Object[n+1];
  arraycopy(args, 0, newArgs, 0, n);
  Object[] varArgs = arrayOfType(varArgType, nArgs-n);
  arraycopy(args, n, varArgs, 0, nArgs-n);
  newArgs[n] = varArgs;
  return newArgs;
}
//static final Map<Class, HashMap<S, Field>> getOpt_cache = newDangerousWeakHashMap(f getOpt_special_init);

static class getOpt_Map extends WeakHashMap {
  getOpt_Map() {
    if (getOpt_special == null) getOpt_special = new HashMap();
    clear();
  }
  
  public void clear() {
    super.clear();
    //print("getOpt clear");
    put(Class.class, getOpt_special);
    put(String.class, getOpt_special);
  }
}

static final Map<Class, HashMap<String, Field>> getOpt_cache = _registerDangerousWeakMap(synchroMap(new getOpt_Map()));
//static final Map<Class, HashMap<S, Field>> getOpt_cache = _registerWeakMap(synchroMap(new getOpt_Map));
static HashMap getOpt_special; // just a marker

/*static void getOpt_special_init(Map map) {
  map.put(Class.class, getOpt_special);
  map.put(S.class, getOpt_special);
}*/

static Object getOpt_cached(Object o, String field) { try {
  if (o == null) return null;

  Class c = o.getClass();
  HashMap<String, Field> map;
  synchronized(getOpt_cache) {
    map = getOpt_cache.get(c);
    if (map == null)
      map = getOpt_makeCache(c);
  }
  
  if (map == getOpt_special) {
    if (o instanceof Class)
      return getOpt((Class) o, field);
    /*if (o instanceof S)
      ret getOpt(getBot((S) o), field);*/
    if (o instanceof Map)
      return ((Map) o).get(field);
  }
    
  Field f = map.get(field);
  if (f != null) return f.get(o);
  
    if (o instanceof DynamicObject)
      return mapGet2(((DynamicObject) o).fieldValues, field);
  
  return null;
} catch (Exception __e) { throw rethrow(__e); } }

// used internally - we are in synchronized block
static HashMap<String, Field> getOpt_makeCache(Class c) {
  HashMap<String, Field> map;
  if (isSubtypeOf(c, Map.class))
    map = getOpt_special;
  else {
    map = new HashMap();
    if (!reflection_classesNotToScan().contains(c.getName())) {
      Class _c = c;
      do {
        for (Field f : _c.getDeclaredFields()) {
          makeAccessible(f);
          String name = f.getName();
          if (!map.containsKey(name))
            map.put(name, f);
        }
        _c = _c.getSuperclass();
      } while (_c != null);
    }
  }
  if (getOpt_cache != null) getOpt_cache.put(c, map);
  return map;
}
static Field getOpt_findField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}


static String actualUserHome_value;
static String actualUserHome() {
  if (actualUserHome_value == null) {
    if (isAndroid())
      actualUserHome_value = "/storage/emulated/0/";
    else
      actualUserHome_value = System.getProperty("user.home");
  }
  return actualUserHome_value;
}

static File actualUserHome(String sub) {
  return newFile(new File(actualUserHome()), sub);
}
static Object call_withVarargs(Object o, String method, Object... args) { try {
  if (o == null) return null;
  
  if (o instanceof Class) {
    Class c = (Class) o;
    _MethodCache cache = callOpt_getCache(c);
    
    Method me = cache.findStaticMethod(method, args);
    if (me != null)
      return invokeMethod(me, null, args);
      
    // try varargs
    List<Method> methods = cache.cache.get(method);
    if (methods != null) methodSearch: for (Method m : methods) {
      { if (!(m.isVarArgs())) continue; }
      { if (!(isStaticMethod(m))) continue; }
      Object[] newArgs = massageArgsForVarArgsCall(m, args);
      if (newArgs != null)
        return invokeMethod(m, null, newArgs);
    }
    
    throw fail("Method " + c.getName() + "." + method + "(" + joinWithComma(classNames(args)) + ") not found");
  } else {
    Class c = o.getClass();
    _MethodCache cache = callOpt_getCache(c);

    Method me = cache.findMethod(method, args);
    if (me != null)
      return invokeMethod(me, o, args);
      
    // try varargs
    List<Method> methods = cache.cache.get(method);
    if (methods != null) methodSearch: for (Method m : methods) {
      { if (!(m.isVarArgs())) continue; }
      Object[] newArgs = massageArgsForVarArgsCall(m, args);
      if (newArgs != null)
        return invokeMethod(m, o, newArgs);
    }
    
    throw fail("Method " + c.getName() + "." + method + "(" + joinWithComma(classNames(args)) + ") not found");
  }
} catch (Exception __e) { throw rethrow(__e); } }
static <A> ArrayList<A> cloneList(Iterable<A> l) {
  return l instanceof Collection ? cloneList((Collection) l) : asList(l);
}

static <A> ArrayList<A> cloneList(Collection<A> l) {
  if (l == null) return new ArrayList();
  synchronized(collectionMutex(l)) {
    return new ArrayList<A>(l);
  }
}
static Object collectionMutex(List l) {
  return l;
}

static Object collectionMutex(Object o) {
  if (o instanceof List) return o;
  
  String c = className(o);
  if (eq(c, "java.util.TreeMap$KeySet"))
    c = className(o = getOpt(o, "m"));
  else if (eq(c, "java.util.HashMap$KeySet"))
    c = className(o = get_raw(o, "this$0"));

  
  
  if (eqOneOf(c, "java.util.TreeMap$AscendingSubMap", "java.util.TreeMap$DescendingSubMap"))
    c = className(o = get_raw(o, "m"));
    
  
    
  return o;
}
static <A, B> void mapPut(Map<A, B> map, A key, B value) {
  if (map != null && key != null && value != null) map.put(key, value);
}
static <A, B> Set<A> keys(Map<A, B> map) {
  return map == null ? new HashSet() : map.keySet();
}

static Set keys(Object map) {
  return keys((Map) map);
}








static Object[] toObjectArray(Collection c) {
  List l = asList(c);
  return l.toArray(new Object[l.size()]);
}

static <A> Iterator<A> iterator(Iterable<A> c) {
  return c == null ? emptyIterator() : c.iterator();
}
static <A, B> Map<A, B> newWeakHashMap() {
  return _registerWeakMap(synchroMap(new WeakHashMap()));
}
// TODO: test if android complains about this
static boolean isAWTThread() {
  if (isAndroid()) return false;
  if (isHeadless()) return false;
  return isAWTThread_awt();
}

static boolean isAWTThread_awt() {
  return SwingUtilities.isEventDispatchThread();
}
static boolean isTrue(Object o) {
  if (o instanceof Boolean)
    return ((Boolean) o).booleanValue();
  if (o == null) return false;
  if (o instanceof ThreadLocal) // TODO: remove this
    return isTrue(((ThreadLocal) o).get());
  throw fail(getClassName(o));
}
static void failIfUnlicensed() {
  assertTrue("license off", licensed());
}
static Thread currentThread() {
  return Thread.currentThread();
}
static boolean endsWithLetterOrDigit(String s) {
  return s != null && s.length() > 0 && Character.isLetterOrDigit(s.charAt(s.length()-1));
}
static void ping_okInCleanUp() {
  if (ping_pauseAll  || ping_anyActions )
    ping_impl(true);
}
// this syntax should be removed...
static Object getThreadLocal(Object o, String name) {
  ThreadLocal t =  (ThreadLocal) (getOpt(o, name));
  return t != null ? t.get() : null;
}

static <A> A getThreadLocal(ThreadLocal<A> tl) {
  return tl == null ? null : tl.get();
}

static <A> A getThreadLocal(ThreadLocal<A> tl, A defaultValue) {
  return or(getThreadLocal(tl), defaultValue);
}
static ThreadLocal<Object> print_byThread_dontCreate() {
  return print_byThread;
}
static boolean isFalse(Object o) {
  return eq(false, o);
}
static String fixNewLines(String s) {
  int i = indexOf(s, '\r');
  if (i < 0) return s;
  int l = s.length();
  StringBuilder out = new StringBuilder(l);
  out.append(s, 0, i);
  for (; i < l; i++) {
    char c = s.charAt(i);
    if (c != '\r')
      out.append(c);
    else {
      out.append('\n');
      if (i+1 < l && s.charAt(i+1) == '\n') ++i;
    }
  }
  return out.toString();
}
static void print_append(Appendable buf, String s, int max) { try {
  synchronized(buf) {
    buf.append(s);
    if (buf instanceof StringBuffer)
      rotateStringBuffer(((StringBuffer) buf), max);
    else if (buf instanceof StringBuilder)
      rotateStringBuilder(((StringBuilder) buf), max);
  }
} catch (Exception __e) { throw rethrow(__e); } }
static String getStackTrace(Throwable throwable) {
  lastException(throwable);
  return getStackTrace_noRecord(throwable);
}

static String getStackTrace_noRecord(Throwable throwable) {
  StringWriter writer = new StringWriter();
  throwable.printStackTrace(new PrintWriter(writer));
  return hideCredentials(writer.toString());
}

static String getStackTrace() {
  return getStackTrace_noRecord(new Throwable());
}
static void _handleError(Error e) {
  call(javax(), "_handleError", e);
}
static <A> List<A> synchroList() {
  return Collections.synchronizedList(new ArrayList<A>());
}

static <A> List<A> synchroList(List<A> l) {
  return Collections.synchronizedList(l);
}

static String n2(long l) { return formatWithThousands(l); }
static String n2(Collection l) { return n2(l(l)); }

static String n2(double l, String singular) {
  return n2(l, singular, singular + "s");
}

static String n2(double l, String singular, String plural) {
  if (fraction(l) == 0)
    return n2((long) l, singular, plural);
  else
    return l + " " + plural;
}

static String n2(long l, String singular, String plural) {
  return n_fancy2(l, singular, plural);
}

static String n2(long l, String singular) {
  return n_fancy2(l, singular, singular + "s");
}

static String n2(Collection l, String singular) {
  return n2(l(l), singular);
}

static String n2(Collection l, String singular, String plural) {
  return n_fancy2(l, singular, plural);
}

static String n2(Map m, String singular, String plural) {
  return n_fancy2(m, singular, plural);
}

static String n2(Map m, String singular) {
  return n2(l(m), singular);
}

static String n2(Object[] a, String singular) { return n2(l(a), singular); }
static String n2(Object[] a, String singular, String plural) { return n_fancy2(a, singular, plural); }


public static <A> String join(String glue, Iterable<A> strings) {
  if (strings == null) return "";
  if (strings instanceof Collection) {
    if (((Collection) strings).size() == 1) return str(first(((Collection) strings)));
  }
  StringBuilder buf = new StringBuilder();
  Iterator<A> i = strings.iterator();
  if (i.hasNext()) {
    buf.append(i.next());
    while (i.hasNext())
      buf.append(glue).append(i.next());
  }
  return buf.toString();
}

public static String join(String glue, String... strings) {
  return join(glue, Arrays.asList(strings));
}

static <A> String join(Iterable<A> strings) {
  return join("", strings);
}

static <A> String join(Iterable<A> strings, String glue) {
  return join(glue, strings);
}

public static String join(String[] strings) {
  return join("", strings);
}


static String join(String glue, Pair p) {
  return p == null ? "" : str(p.a) + glue + str(p.b);
}

static List collect(Iterable c, String field) {
  return collectField(c, field);
}

static List collect(String field, Iterable c) {
  return collectField(c, field);
}

/*ifclass Concept
static L collect(Class c, S field) {
  ret collect(list(c), field);
}
endif
TODO: make translator ignore stuff in ifclass until resolved
*/
static volatile PersistableThrowable _handleException_lastException;
static List _handleException_onException = synchroList(ll("printStackTrace2"));

static void _handleException(Throwable e) {
  _handleException_lastException = persistableThrowable(e);
  
  Throwable e2 = innerException(e);
  if (e2.getClass() == RuntimeException.class && eq(e2.getMessage(), "Thread cancelled.") || e2 instanceof InterruptedException)
    return;
    
  for (Object f : cloneList(_handleException_onException)) try {
    callF(f, e);
  } catch (Throwable e3) {
    printStackTrace2(e3); // not using pcall here - it could lead to endless loops
  }
}

static void sleepInCleanUp(long ms) { try {
  if (ms < 0) return;
  Thread.sleep(ms);
} catch (Exception __e) { throw rethrow(__e); } }
static String f2s(File f) {
  return f == null ? null : f.getAbsolutePath();
}

static String f2s(String s) { return f2s(newFile(s)); }


 static String f2s(java.nio.file.Path p) {
  return p == null ? null : f2s(p.toFile());
}

static void copyStream(InputStream in, OutputStream out) { try {
  byte[] buf = new byte[65536];
  while (true) {
    int n = in.read(buf);
    if (n <= 0) return;
    out.write(buf, 0, n);
  }
} catch (Exception __e) { throw rethrow(__e); } }
static void _registerIO(Object object, String path, boolean opened) {
}
static Object vmBus_wrapArgs(Object... args) {
  return empty(args) ? null
    : l(args) == 1 ? args[0]
    : args;
}
static void pcallFAll(Collection l, Object... args) {
  if (l != null) for (Object f : cloneList(l)) pcallF(f, args);
}

static void pcallFAll(Iterator it, Object... args) {
  while (it.hasNext()) pcallF(it.next(), args);
}
static Set vm_busListeners_live_cache;
static Set vm_busListeners_live() { if (vm_busListeners_live_cache == null) vm_busListeners_live_cache = vm_busListeners_live_load(); return vm_busListeners_live_cache; }

static Set vm_busListeners_live_load() {
  return vm_generalIdentityHashSet("busListeners");
}
static Map<String, Set> vm_busListenersByMessage_live_cache;
static Map<String, Set> vm_busListenersByMessage_live() { if (vm_busListenersByMessage_live_cache == null) vm_busListenersByMessage_live_cache = vm_busListenersByMessage_live_load(); return vm_busListenersByMessage_live_cache; }

static Map<String, Set> vm_busListenersByMessage_live_load() {
  return vm_generalHashMap("busListenersByMessage");
}
static String getCanonicalPath(File f) { try {
  return f == null ? null : f.getCanonicalPath();
} catch (Exception __e) { throw rethrow(__e); } }

static String getCanonicalPath(String path) {
  return getCanonicalPath(newFile(path));
}
static AutoCloseable tempCleaningUp() {
  return tempSetTL(ping_isCleanUpThread, true);
}
static void closeAllWriters(Collection<? extends Writer> l) {
  for (Writer w : unnull(l)) { try {
    w.close();
  } catch (Throwable __e) { _handleException(__e); }}
}
static void _close(AutoCloseable c) {
  if (c != null) try {
    c.close();
  } catch (Throwable e) {
    // Some classes stupidly throw an exception on double-closing
    if (c instanceof javax.imageio.stream.ImageOutputStream)
      return;
    else throw rethrow(e);
  }
}
static ThreadLocal<Boolean> assertVerbose_value = new ThreadLocal();

static void assertVerbose(boolean b) {
  assertVerbose_value.set(b);
}

static boolean assertVerbose() { return isTrue(assertVerbose_value.get()); }
static <A> A assertEqualsVerbose(Object x, A y) {
  assertEqualsVerbose((String) null, x, y);
  return y;
}

static <A> A assertEqualsVerbose(String msg, Object x, A y) {
  if (!eq(x, y)) {
    

    throw fail((msg != null ? msg + ": " : "") + /*sfu*/(y) + " != " + /*sfu*/(x));
  } else
    print("OK: " + /*sfu*/(x));
  return y;
}


static String javaTok_substringC(String s, int i, int j) {
  return s.substring(i, j);
}
static <A> A liftLast(List<A> l) {
  if (empty(l)) return null;
  int i = l(l)-1;
  A a = l.get(i);
  l.remove(i);
  return a;
}

static <A> List<A> liftLast(int n, List<A> l) {
  int i = l(l)-n;
  List<A> part = cloneSubList(l, i);
  removeSubList(l, i);
  return part;
}
static int min(int a, int b) {
  return Math.min(a, b);
}

static long min(long a, long b) {
  return Math.min(a, b);
}

static float min(float a, float b) { return Math.min(a, b); }
static float min(float a, float b, float c) { return min(min(a, b), c); }

static double min(double a, double b) {
  return Math.min(a, b);
}

static double min(double[] c) {
  double x = Double.MAX_VALUE;
  for (double d : c) x = Math.min(x, d);
  return x;
}

static float min(float[] c) {
  float x = Float.MAX_VALUE;
  for (float d : c) x = Math.min(x, d);
  return x;
}

static byte min(byte[] c) {
  byte x = 127;
  for (byte d : c) if (d < x) x = d;
  return x;
}

static short min(short[] c) {
  short x = 0x7FFF;
  for (short d : c) if (d < x) x = d;
  return x;
}

static int min(int[] c) {
  int x = Integer.MAX_VALUE;
  for (int d : c) if (d < x) x = d;
  return x;
}
static String className(Object o) {
  return getClassName(o);
}
static boolean nemptyString(String s) {
  return s != null && s.length() > 0;
}
static int strL(String s) {
  return s == null ? 0 : s.length();
}
static int listL(Collection l) {
  return l == null ? 0 : l.size();
}
static boolean neq(Object a, Object b) {
  return !eq(a, b);
}
static boolean eqOneOf(Object o, Object... l) {
  for (Object x : l) if (eq(o, x)) return true; return false;
}
// get purpose 1: access a list/array/map (safer version of x.get(y))

static <A> A get(List<A> l, int idx) {
  return l != null && idx >= 0 && idx < l(l) ? l.get(idx) : null;
}

// seems to conflict with other signatures
/*static <A, B> B get(Map<A, B> map, A key) {
  ret map != null ? map.get(key) : null;
}*/

static <A> A get(A[] l, int idx) {
  return idx >= 0 && idx < l(l) ? l[idx] : null;
}

// default to false
static boolean get(boolean[] l, int idx) {
  return idx >= 0 && idx < l(l) ? l[idx] : false;
}

// get purpose 2: access a field by reflection or a map

static Object get(Object o, String field) {
  try {
    if (o == null) return null;
    if (o instanceof Class) return get((Class) o, field);
    
    if (o instanceof Map)
      return ((Map) o).get(field);
      
    Field f = getOpt_findField(o.getClass(), field);
    if (f != null) {
      makeAccessible(f);
      return f.get(o);
    }
      
    
      if (o instanceof DynamicObject)
        return ((DynamicObject) o).fieldValues.get(field);
    
  } catch (Exception e) {
    throw asRuntimeException(e);
  }
  throw new RuntimeException("Field '" + field + "' not found in " + o.getClass().getName());
}

static Object get_raw(String field, Object o) {
  return get_raw(o, field);
}

static Object get_raw(Object o, String field) { try {
  if (o == null) return null;
  Field f = get_findField(o.getClass(), field);
  makeAccessible(f);
  return f.get(o);
} catch (Exception __e) { throw rethrow(__e); } }

static Object get(Class c, String field) {
  try {
    Field f = get_findStaticField(c, field);
    makeAccessible(f);
    return f.get(null);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}

static Field get_findStaticField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field) && (f.getModifiers() & java.lang.reflect.Modifier.STATIC) != 0)
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  throw new RuntimeException("Static field '" + field + "' not found in " + c.getName());
}

static Field get_findField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  throw new RuntimeException("Field '" + field + "' not found in " + c.getName());
}

static Object get(String field, Object o) {
  return get(o, field);
}
static byte[] boolArrayToBytes(boolean[] a) {
  byte[] b = new byte[(l(a)+7)/8];
  for (int i = 0; i < l(a); i++)
    if (a[i])
      b[i/8] |= 1 << (i & 7);
  return b;
}
static Throwable getExceptionCause(Throwable e) {
  Throwable c = e.getCause();
  return c != null ? c : e;
}
static String joinWithSpace(Collection<String> c) {
  return join(" ", c);
}

static String joinWithSpace(String... c) {
  return join(" ", c);
}

static List<String> classNames(Collection l) {
  return getClassNames(l);
}

static List<String> classNames(Object[] l) {
  return getClassNames(Arrays.asList(l));
}
static RuntimeException asRuntimeException(Throwable t) {
  
  if (t instanceof Error)
    _handleError((Error) t);
  
  return t instanceof RuntimeException ? (RuntimeException) t : new RuntimeException(t);
}
static String shortClassName(Object o) {
  if (o == null) return null;
  Class c = o instanceof Class ? (Class) o : o.getClass();
  String name = c.getName();
  return shortenClassName(name);
}
static int cmp(Number a, Number b) {
  return a == null ? b == null ? 0 : -1 : cmp(a.doubleValue(), b.doubleValue());
}

static int cmp(double a, double b) {
  return a < b ? -1 : a == b ? 0 : 1;
}

static int cmp(Object a, Object b) {
  if (a == null) return b == null ? 0 : -1;
  if (b == null) return 1;
  return ((Comparable) a).compareTo(b);
}
static boolean isDigit(char c) {
  return Character.isDigit(c);
}
static File programDir_mine; // set this to relocate program's data

static File programDir() {
  return programDir(getProgramID());
}

static File programDir(String snippetID) {
  boolean me = sameSnippetID(snippetID, programID());
  if (programDir_mine != null && me)
    return programDir_mine;
  File dir = new File(javaxDataDir(), formatSnippetIDOpt(snippetID));
  if (me) {
    String c = caseID();
    if (nempty(c)) dir = newFile(dir, c);
  }
  return dir;
}

static File programDir(String snippetID, String subPath) {
  return new File(programDir(snippetID), subPath);
}
static String getType(Object o) {
  return getClassName(o);
}
static long getFileSize(String path) {
  return path == null ? 0 : new File(path).length();
}

static long getFileSize(File f) {
  return f == null ? 0 : f.length();
}
static int max(int a, int b) { return Math.max(a, b); }
static int max(int a, int b, int c) { return max(max(a, b), c); }
static long max(int a, long b) { return Math.max((long) a, b); }
static long max(long a, long b) { return Math.max(a, b); }
static double max(int a, double b) { return Math.max((double) a, b); }
static float max(float a, float b) { return Math.max(a, b); }
static double max(double a, double b) { return Math.max(a, b); }

static int max(Collection<Integer> c) {
  int x = Integer.MIN_VALUE;
  for (int i : c) x = max(x, i);
  return x;
}

static double max(double[] c) {
  if (c.length == 0) return Double.MIN_VALUE;
  double x = c[0];
  for (int i = 1; i < c.length; i++) x = Math.max(x, c[i]);
  return x;
}

static float max(float[] c) {
  if (c.length == 0) return Float.MAX_VALUE;
  float x = c[0];
  for (int i = 1; i < c.length; i++) x = Math.max(x, c[i]);
  return x;
}

static byte max(byte[] c) {
  byte x = -128;
  for (byte d : c) if (d > x) x = d;
  return x;
}

static short max(short[] c) {
  short x = -0x8000;
  for (short d : c) if (d > x) x = d;
  return x;
}

static int max(int[] c) {
  int x = Integer.MIN_VALUE;
  for (int d : c) if (d > x) x = d;
  return x;
}
static boolean startsWithOneOf(String s, String... l) {
  for (String x : l) if (startsWith(s, x)) return true; return false;
}
static boolean isAGIBlueDomain(String domain) {
  return domainIsUnder(domain, theAGIBlueDomain());
}
static String hostNameFromURL(String url) { try {
  return new URL(url).getHost();
} catch (Exception __e) { throw rethrow(__e); } }
static void logQuotedWithTime(String s) {
  logQuotedWithTime(standardLogFile(), s);
}

static void logQuotedWithTime(File logFile, String s) {
  logQuoted(logFile, logQuotedWithTime_format(s));
}

static void logQuotedWithTime(String logFile, String s) {
  logQuoted(logFile, logQuotedWithTime_format(s));
}

static String logQuotedWithTime_format(String s) {
  return /*formatGMTWithDate_24*/(now()) + " " + s;
}
static int isAndroid_flag;

static boolean isAndroid() {
  if (isAndroid_flag == 0)
    isAndroid_flag = System.getProperty("java.vendor").toLowerCase().indexOf("android") >= 0 ? 1 : -1;
  return isAndroid_flag > 0;
}

static Runnable addThreadInfoToRunnable(final Object r) {
  final Object info = _threadInfo();
  return info == null ? asRunnable(r) : new Runnable() {  public void run() { try {  _inheritThreadInfo(info); callF(r); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "_inheritThreadInfo(info); callF(r);"; }};
}
// c = Component or something implementing swing()
static JComponent wrap(Object swingable) {
  return _recordNewSwingComponent(wrap_2(swingable));
}

static JComponent wrap_2(Object swingable) {
  if (swingable == null) return null;
  JComponent c;
  if (swingable instanceof Component) c = componentToJComponent(((Component) swingable));
  
  else c = componentToJComponent((Component) callOpt(swingable, "swing"));
  if (c instanceof JTable || c instanceof JList
    || c instanceof JTextArea || c instanceof JEditorPane
    || c instanceof JTextPane || c instanceof JTree)
    return jscroll(c);
  return c == null ? jlabel(str(swingable)) : c;
}
static JTextArea wrappedTextArea(final JTextArea ta) {
  enableWordWrapForTextArea(ta);
  return ta;
}

static JTextArea wrappedTextArea() {
  return wrappedTextArea(jtextarea());
}

static JTextArea wrappedTextArea(String text) {
  JTextArea ta = wrappedTextArea();
  setText(ta, text);
  return ta;
}
static <A extends JComponent> A onClick(final A c, final Object runnable) {
  if (c != null) { swing(new Runnable() {  public void run() { try { 
    c.addMouseListener(new MouseAdapter() {
      public void mouseClicked(MouseEvent e) {
        callF(runnable, e);
      }
    });
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "c.addMouseListener(new MouseAdapter {\r\n      public void mouseClicked(MouseEv..."; }}); }
  return c;
}

// re-interpreted for buttons
static void onClick(JButton btn, final Object runnable) {
  onEnter(btn, runnable);
}
static void disposeWindow(final Window window) {
  if (window != null) { swing(new Runnable() {  public void run() { try { 
    window.dispatchEvent(new WindowEvent(window, WindowEvent.WINDOW_CLOSING)); // call listeners
    myFrames_list.remove(window);
    window.dispose();
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "window.dispatchEvent(new WindowEvent(window, WindowEvent.WINDOW_CLOSING)); //..."; }}); }
}

static void disposeWindow(final Component c) {
  disposeWindow(getWindow(c));
}

static void disposeWindow(Object o) {
  if (o != null) disposeWindow(((Component) o));
}

static void disposeWindow() {
  disposeWindow(heldInstance(Component.class));
}
static Font typeWriterFont() {
  return typeWriterFont(iround(14*getSwingFontScale()));
}
  
static Font typeWriterFont(int size) {
  return new Font("Courier", Font.PLAIN, size);
}
static JScrollPane jscroll(final Component c) {
  return swing(new F0<JScrollPane>() { JScrollPane get() { try {  return new JScrollPane(c);  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret new JScrollPane(c);"; }});
}
static int withMargin_defaultWidth = 6;

static JPanel withMargin(Component c) {
  return withMargin(withMargin_defaultWidth, c);
}

static JPanel withMargin(int w, Component c) {
  return withMargin(w, w, c);
}

static JPanel withMargin(int w, int h, Component c) {
  return withMargin(w, h, w, h, c);
}

static JPanel withMargin(final int top, final int left, final int bottom, final int right, final Component c) {
  return swing(new F0<JPanel>() { JPanel get() { try { 
    JPanel p = new JPanel(new BorderLayout());
    p.setBorder(BorderFactory.createEmptyBorder(top, left, bottom, right));
    p.add(c);
    return p;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "JPanel p = new JPanel(new BorderLayout);\r\n    p.setBorder(BorderFactory.creat..."; }});
}
static Window getWindow(Object o) {
  if (!(o instanceof Component)) return null;
  Component c = (Component) o;
  while (c != null) {
    if (c instanceof Window) return (Window) c;
    c = c.getParent();
  }
  return null;
}
static Dimension getScreenSize() {
  return Toolkit.getDefaultToolkit().getScreenSize();
}
static void swingLater(long delay, final Object r) {
  javax.swing.Timer timer = new javax.swing.Timer(toInt(delay), actionListener(wrapAsActivity(r)));
  timer.setRepeats(false);
  timer.start();
}

static void swingLater(Object r) {
  SwingUtilities.invokeLater(toRunnable(r));
}

static int toMS_int(double seconds) {
  return toInt_checked((long) (seconds*1000));
}
static double toDouble(Object o) {
  if (o instanceof Number)
    return ((Number) o).doubleValue();
  if (o instanceof BigInteger)
    return ((BigInteger) o).doubleValue();
  if (o == null) return 0.0;
  throw fail(o);
}
// PersistableThrowable doesn't hold GC-disturbing class references in backtrace
static volatile PersistableThrowable lastException_lastException;

static PersistableThrowable lastException() {
  return lastException_lastException;
}

static void lastException(Throwable e) {
  lastException_lastException = persistableThrowable(e);
}
static Throwable getInnerException(Throwable e) {
  if (e == null) return null;
  while (e.getCause() != null)
    e = e.getCause();
  return e;
}

static Throwable getInnerException(Runnable r) {
  return getInnerException(getException(r));
}
static String baseClassName(String className) {
  return substring(className, className.lastIndexOf('.')+1);
}

static String baseClassName(Object o) {
  return baseClassName(getClassName(o));
}
static String prependIfNempty(String prefix, String s) {
  return empty(s) ? s : prefix + s;
}
static List mapNonNulls(Iterable l, Object f) { return mapNonNulls(f, l); }

static List mapNonNulls(Object f, Iterable l) {
  List x = new ArrayList();
  if (l != null) for (Object o : l)
    addIfNotNull(x, callF(f, o));
  return x;
}

static List mapNonNulls(Object f, Object[] l) {
  List x = new ArrayList();
  if (l != null) for (Object o : l)
    addIfNotNull(x, callF(f, o));
  return x;
}



static <A, B> List<B> mapNonNulls(A[] l, IF1<A, B> f) {
  return mapNonNulls(f, l);
}

static <A, B> List<B> mapNonNulls(Iterable<A> l, IF1<A, B> f) {
  List x = emptyList(l);
  if (l != null) for (A o : l)
    addIfNotNull(x, f.get(o));
  return x;
}

static <A, B> List<B> mapNonNulls(IF1<A, B> f, Iterable<A> l) {
  return mapNonNulls(l, f);
}
static List vmBus_queryAll(String msg, Object... args) {
  Object arg = vmBus_wrapArgs(args);
  List out = new ArrayList();
  for (Object o : unnull(vm_busListeners_live()))
    addIfNotNull(out, pcallF(o, msg, arg));
  for (Object o : unnull(vm_busListenersByMessage_live().get(msg)))
    addIfNotNull(out, pcallF(o, msg, arg));
  return out;
}
static Map emptyMap() {
  return new HashMap();
}
static <A> A dm_callModuleOpt(Object moduleOrID, String method, Object... args) {
  Object mod = dm_getModule(moduleOrID);
  if (mod == null) return null;
   AutoCloseable __0 = dm_enter(mod); try {
  return (A) callOpt_withVarargs(mod, method, args);
} finally { _close(__0); }}
  public static boolean isSnippetID(String s) {
    try {
      parseSnippetID(s);
      return true;
    } catch (RuntimeException e) {
      return false;
    }
  }
public static long parseSnippetID(String snippetID) {
  long id = Long.parseLong(shortenSnippetID(snippetID));
  if (id == 0) throw fail("0 is not a snippet ID");
  return id;
}
static Class mc() {
  return main.class;
}
static Object pcallFAll_returnFirstNotNull(Collection l, Object... args) {
  if (l != null) for (Object f : cloneList(l))
    { Object __1= pcallF(f, args); if (__1 != null) return __1; }
  return null;
}

static Object pcallFAll_returnFirstNotNull(Iterator it, Object... args) {
  while (it.hasNext())
    { Object __2= pcallF(it.next(), args); if (__2 != null) return __2; }
  return null;
}
static String assertIsIdentifier(String s) {
  if (!isIdentifier(s))
    throw fail("Not an identifier: " + quote(s));
  return s;
}

static String assertIsIdentifier(String msg, String s) {
  if (!isIdentifier(s))
    throw fail(msg + " - Not an identifier: " + quote(s));
  return s;
}
static Object vm_generalMap_get(Object key) {
  return vm_generalMap().get(key);
}
static WeakReference<Object> creator_class;

static Object creator() {
  return creator_class == null ? null : creator_class.get();
}
static List<Pair> _registerDangerousWeakMap_preList;

static <A> A _registerDangerousWeakMap(A map) {
  return _registerDangerousWeakMap(map, null);
}

static <A> A _registerDangerousWeakMap(A map, Object init) {
  
  callF(init, map);
  
  if (init instanceof String) {
    final String f =  (String) init;
    init = new VF1<Map>() { public void get(Map map) { try {  callMC(f, map) ; } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "callMC(f, map)"; }};
  }
    
  if (javax() == null) {
    // We're in class init
    if (_registerDangerousWeakMap_preList == null) _registerDangerousWeakMap_preList = synchroList();
    _registerDangerousWeakMap_preList.add(pair(map, init));
    return map;
  }
  
  call(javax(), "_registerDangerousWeakMap", map, init);
  
  return map;
}

static void _onLoad_registerDangerousWeakMap() {
  
  assertNotNull(javax());
  if (_registerDangerousWeakMap_preList == null) return;
  for (Pair p : _registerDangerousWeakMap_preList)
    _registerDangerousWeakMap(p.a, p.b);
  _registerDangerousWeakMap_preList = null;
  
}
static Map synchroMap() {
  return synchroHashMap();
}

static <A, B> Map<A, B> synchroMap(Map<A, B> map) {
  return Collections.synchronizedMap(map);
}
static boolean isInstanceX(Class type, Object arg) {
  if (type == boolean.class) return arg instanceof Boolean;
  if (type == int.class) return arg instanceof Integer;
  if (type == long.class) return arg instanceof Long;
  if (type == float.class) return arg instanceof Float;
  if (type == short.class) return arg instanceof Short;
  if (type == char.class) return arg instanceof Character;
  if (type == byte.class) return arg instanceof Byte;
  if (type == double.class) return arg instanceof Double;
  return type.isInstance(arg);
}
static boolean argumentCompatibleWithType(Object arg, Class type) {
  return arg == null ? !type.isPrimitive() : isInstanceX(type, arg);
}
static void arraycopy(Object[] a, Object[] b) {
  if (a != null && b != null)
    arraycopy(a, 0, b, 0, min(a.length, b.length));
}

static void arraycopy(Object src, int srcPos, Object dest, int destPos, int n) {
  if (n != 0)
    System.arraycopy(src, srcPos, dest, destPos, n);
}
static <A> A[] arrayOfType(Class<A> type, int n) {
  return makeArray(type, n);
}

static <A> A[] arrayOfType(int n, Class<A> type) {
  return arrayOfType(type, n);
}
static void clear(Collection c) {
  if (c != null) c.clear();
}
static <A, B> void put(Map<A, B> map, A a, B b) {
  if (map != null) map.put(a, b);
}

static <A> void put(List<A> l, int i, A a) {
  if (l != null && i >= 0 && i < l(l)) l.set(i, a);
}
static <A, B> B mapGet2(Map<A, B> map, A a) {
  return map == null ? null : map.get(a);
}

static <A, B> B mapGet2(A a, Map<A, B> map) {
  return map == null ? null : map.get(a);
}
static boolean isSubtypeOf(Class a, Class b) {
  return b.isAssignableFrom(a); // << always hated that method, let's replace it!
}
static Set<String> reflection_classesNotToScan_value = litset(
  "jdk.internal.loader.URLClassPath"
);

static Set<String> reflection_classesNotToScan() {
  return reflection_classesNotToScan_value;
}


static Throwable printStackTrace2(Throwable e) {
  // we go to system.out now - system.err is nonsense
  print(getStackTrace2(e));
  return e;
}

static void printStackTrace2() {
  printStackTrace2(new Throwable());
}

static void printStackTrace2(String msg) {
  printStackTrace2(new Throwable(msg));
}

static Map<JFrame, Boolean> myFrames_list = weakHashMap();

static List<JFrame> myFrames() {
  return swing(new F0<List<JFrame>>() { List<JFrame> get() { try {  return keysList(myFrames_list);  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret keysList(myFrames_list);"; }});
}

static boolean isStaticMethod(Method m) {
  return methodIsStatic(m);
}
static <A> String joinWithComma(Collection<A> c) {
  return join(", ", c);
}

static String joinWithComma(String... c) {
  return join(", ", c);
}


static String joinWithComma(Pair p) {
  return p == null ? "" : joinWithComma(str(p.a), str(p.b));
}

static List _registerWeakMap_preList;

static <A> A _registerWeakMap(A map) {
  if (javax() == null) {
    // We're in class init
    if (_registerWeakMap_preList == null) _registerWeakMap_preList = synchroList();
    _registerWeakMap_preList.add(map);
    return map;
  }
  
  try {
    call(javax(), "_registerWeakMap", map);
  } catch (Throwable e) {
    printException(e);
    print("Upgrade JavaX!!");
  }
  return map;
}

static void _onLoad_registerWeakMap() {
  assertNotNull(javax());
  if (_registerWeakMap_preList == null) return;
  for (Object o : _registerWeakMap_preList)
    _registerWeakMap(o);
  _registerWeakMap_preList = null;
}
static volatile boolean licensed_yes = true;

static boolean licensed() {
  if (!licensed_yes) return false;
  ping_okInCleanUp();
  return true;
}

static void licensed_off() {
  licensed_yes = false;
}
static <A> int indexOf(List<A> l, A a, int startIndex) {
  if (l == null) return -1;
  int n = l(l);
  for (int i = startIndex; i < n; i++)
    if (eq(l.get(i), a))
      return i;
  return -1;
}

static <A> int indexOf(List<A> l, int startIndex, A a) {
  return indexOf(l, a, startIndex);
}

static <A> int indexOf(List<A> l, A a) {
  if (l == null) return -1;
  return l.indexOf(a);
}

static int indexOf(String a, String b) {
  return a == null || b == null ? -1 : a.indexOf(b);
}

static int indexOf(String a, String b, int i) {
  return a == null || b == null ? -1 : a.indexOf(b, i);
}

static int indexOf(String a, char b) {
  return a == null ? -1 : a.indexOf(b);
}

static int indexOf(String a, int i, char b) {
  return indexOf(a, b, i);
}

static int indexOf(String a, char b, int i) {
  return a == null ? -1 : a.indexOf(b, i);
}

static int indexOf(String a, int i, String b) {
  return a == null || b == null ? -1 : a.indexOf(b, i);
}

static <A> int indexOf(A[] x, A a) {
  int n = l(x);
  for (int i = 0; i < n; i++)
    if (eq(x[i], a))
      return i;
  return -1;
}
static void rotateStringBuffer(StringBuffer buf, int max) { try {
  if (buf == null) return;
  synchronized(buf) {
    if (buf.length() <= max) return;
    
    try {
      int newLength = max/2;
      int ofs = buf.length()-newLength;
      String newString = buf.substring(ofs);
      buf.setLength(0);
      buf.append("[...] ").append(newString);
    } catch (Exception e) {
      buf.setLength(0);
    }
    buf.trimToSize();
  }
} catch (Exception __e) { throw rethrow(__e); } }
static void rotateStringBuilder(StringBuilder buf, int max) { try {
  if (buf == null) return;
  synchronized(buf) {
    if (buf.length() <= max) return;
    
    try {
      int newLength = max/2;
      int ofs = buf.length()-newLength;
      String newString = buf.substring(ofs);
      buf.setLength(0);
      buf.append("[...] ").append(newString);
    } catch (Exception e) {
      buf.setLength(0);
    }
    buf.trimToSize();
  }
} catch (Exception __e) { throw rethrow(__e); } }
static Class javax() {
  return getJavaX();
}
static String formatWithThousands(long l) {
  return formatWithThousandsSeparator(l);
}
static double fraction(double d) {
  return d % 1;
}
static String n_fancy2(long l, String singular, String plural) {
  return formatWithThousandsSeparator(l) + " " + trim(l == 1 ? singular : plural);
}

static String n_fancy2(Collection l, String singular, String plural) {
  return n_fancy2(l(l), singular, plural);
}

static String n_fancy2(Map m, String singular, String plural) {
  return n_fancy2(l(m), singular, plural);
}

static String n_fancy2(Object[] a, String singular, String plural) {
  return n_fancy2(l(a), singular, plural);
}


static List collectField(Iterable c, String field) {
  List l = new ArrayList();
  if (c != null) for (Object a : c)
    l.add(getOpt(a, field));
  return l;
}

static List collectField(String field, Iterable c) {
  return collectField(c, field);
}
static <A> List<A> ll(A... a) {
  ArrayList l = new ArrayList(a.length);
  if (a != null) for (A x : a) l.add(x);
  return l;
}
static PersistableThrowable persistableThrowable(Throwable e) {
  return e == null ? null : new PersistableThrowable(e);
}
static Throwable innerException(Throwable e) {
  return getInnerException(e);
}
static Object pcallF(Object f, Object... args) {
  return pcallFunction(f, args);
}


static <A> A pcallF(F0<A> f) { try {
  return f == null ? null : f.get();
} catch (Throwable __e) { return null; } }





static <A> void pcallF(VF1<A> f, A a) {
  try {
    if (f != null) f.get(a);
  } catch (Throwable __e) { _handleException(__e); }
}

static Set vm_generalIdentityHashSet(Object name) {
  synchronized(get(javax(), "generalMap")) {
    Set set =  (Set) (vm_generalMap_get(name));
    if (set == null)
      vm_generalMap_put(name, set = syncIdentityHashSet());
    return set;
  }
}

static Map vm_generalHashMap(Object name) {
  synchronized(get(javax(), "generalMap")) {
    Map m =  (Map) (vm_generalMap_get(name));
    if (m == null)
      vm_generalMap_put(name, m = syncHashMap());
    return m;
  }
}

static <A> AutoCloseable tempSetTL(ThreadLocal<A> tl, A a) {
  return tempSetThreadLocal(tl, a);
}
static <A> List<A> cloneSubList(List<A> l, int startIndex, int endIndex) {
  return newSubList(l, startIndex, endIndex);
}

static <A> List<A> cloneSubList(List<A> l, int startIndex) {
  return newSubList(l, startIndex);
}
static void removeSubList(List l, int from, int to) {
  if (l != null) subList(l, from, to).clear();
}

static void removeSubList(List l, int from) {
  if (l != null) subList(l, from).clear();
}
static List<String> getClassNames(Collection l) {
  List<String> out = new ArrayList();
  if (l != null) for (Object o : l)
    out.add(o == null ? null : getClassName(o));
  return out;
}
static String shortenClassName(String name) {
  if (name == null) return null;
  int i = lastIndexOf(name, "$");
  if (i < 0) i = lastIndexOf(name, ".");
  return i < 0 ? name : substring(name, i+1);
}
static boolean sameSnippetID(String a, String b) {
  if (!isSnippetID(a) || !isSnippetID(b)) return false;
  return parseSnippetID(a) == parseSnippetID(b);
}
static volatile String caseID_caseID;

static String caseID() { return caseID_caseID; }

static void caseID(String id) {
  caseID_caseID = id;
}
static boolean domainIsUnder(String domain, String mainDomain) {
  return eqic(domain, mainDomain) || ewic(domain, "." + mainDomain);
}
static String theAGIBlueDomain() {
  return "agi.blue";
}
static File standardLogFile() {
  return getProgramFile("log");
}
static List<VF1<Map>> _threadInfo_makers = synchroList();

static Object _threadInfo() {
  if (empty(_threadInfo_makers)) return null;
  HashMap map = new HashMap();
  pcallFAll(_threadInfo_makers, map);
  return map;
}
static Runnable asRunnable(Object o) {
  return toRunnable(o);
}


static void _inheritThreadInfo(Object info) {
  _threadInheritInfo(info);
}
static <A extends Component> A _recordNewSwingComponent(A c) {
  if (c != null)
    callF((Object) vm_generalMap_get("newSwingComponentRegistry"), (Object) c);
  return c;
}
static JComponent componentToJComponent(Component c) {
  if (c instanceof JComponent) return (JComponent) c;
  if (c instanceof JFrame) return ((JFrame) c).getRootPane();
  if (c == null) return null;
  throw fail("boohoo " + getClassName(c));
}

static JLabel jlabel(final String text) {
  return swingConstruct(BetterLabel.class, text);
}

static JLabel jlabel() {
  return jlabel(" ");
}
static void enableWordWrapForTextArea(final JTextArea ta) {
  if (ta != null) { swing(new Runnable() {  public void run() { try { 
    ta.setLineWrap(true);
    ta.setWrapStyleWord(true);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "ta.setLineWrap(true);\r\n    ta.setWrapStyleWord(true);"; }}); }
}
static JTextArea jtextarea() {
  return jTextArea();
}

static JTextArea jtextarea(String text) {
  return jTextArea(text);
}


static boolean setText_opt = true; // optimize by calling getText first

static <A extends JTextComponent> A setText(A c, Object text) {
  setText((JComponent) c, text);
  return c;
}

static <A extends JComboBox> A setText(final A c, Object text) {
  // only for editable combo boxes at this point
  final String s = strUnnull(text);
  { swing(new Runnable() {  public void run() { try { 
    c.getEditor().setItem(s);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "c.getEditor().setItem(s);"; }}); }
  return c;
}

static void setText(JLabel c, Object text) {
  setText((JComponent) c, text);
}

static JButton setText(JButton c, Object text) {
  setText((JComponent) c, jlabel_textAsHTML_center_ifNeeded(strUnnull(text)));
  return c;
}

static <A extends JComponent> A setText(final A c, Object text) {
  if (c == null) return null;
  final String s = strUnnull(text);
  { swing(new Runnable() {  public void run() { try { 
    if (!setText_opt || neq(callOpt(c, "getText"), s))
      call(c, "setText", s);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (!setText_opt || neq(callOpt(c, \"getText\"), s))\r\n      call(c, \"setText\", s);"; }}); }
  return c;
}




static Object swing(Object f) {
  return swingAndWait(f);
}

static <A> A swing(F0<A> f) {
  return (A) swingAndWait(f);
}

static <A> A swing(IF0<A> f) {
  return (A) swingAndWait(f);
}
static JTextField onEnter(final JTextField tf, final Object action) {
  if (action == null || tf == null) return tf;
  tf.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent _evt) { try {
    tf.selectAll();
    callF(action);
  } catch (Throwable __e) { messageBox(__e); }}});
  return tf;
}

static JButton onEnter(JButton btn, final Object action) {
  if (action == null || btn == null) return btn;
  btn.addActionListener(actionListener(action));
  return btn;
}

static JList onEnter(JList list, Object action) {
  list.addKeyListener(enterKeyListener(rCallOnSelectedListItem(list, action)));
  return list;
}

static JComboBox onEnter(final JComboBox cb, final Object action) {
  { swing(new Runnable() {  public void run() { try { 
    if (cb.isEditable()) {
      JTextField text = (JTextField) cb.getEditor().getEditorComponent();
      onEnter(text, action);
    } else {
      cb.getInputMap().put(KeyStroke.getKeyStroke("ENTER"), "enter");
      cb.getActionMap().put("enter", abstractAction("", new Runnable() {  public void run() { try {  cb.hidePopup(); callF(action); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "cb.hidePopup(); callF(action);"; }}));
    }
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (cb.isEditable()) {\r\n      JTextField text = (JTextField) cb.getEditor().g..."; }}); }
  return cb;
}

static JTable onEnter(final JTable table, final Object action) {  
  table.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT)
    .put(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0), "Enter");
    
  table.getActionMap().put("Enter", new AbstractAction() {
    public void actionPerformed(ActionEvent e) {
      callF(action, table.getSelectedRow());
    }
  });
  return table;
}

/*static JTextArea onEnter(final JTextArea ta, fO action) {
  addKeyListener(ta, enterKeyListener(action));
  ret ta;
}*/

static JTextField onEnter(Object action, JTextField tf) {
  return onEnter(tf, action);
}
static <A> A heldInstance(Class<A> c) {
  List<Object> l = holdInstance_l.get();
  for (int i = l(l)-1; i >= 0; i--) {
    Object o = l.get(i);
    if (isInstanceOf(o, c))
      return (A) o;
  }
  throw fail("No instance of " + className(c) + " held");
}
static float getSwingFontScale() {
  return or((Float) vm_generalMap_get("swingFontScale_value"), 1f);
}
static int toInt(Object o) {
  if (o == null) return 0;
  if (o instanceof Number)
    return ((Number) o).intValue();
  if (o instanceof String)
    return parseInt(((String) o));
  if (o instanceof Boolean)
    return boolToInt(((Boolean) o));
  throw fail("woot not int: " + getClassName(o));
}

static int toInt(long l) {
  if (l != (int) l) throw fail("Too large for int: " + l);
  return (int) l;
}
static ActionListener actionListener(final Object runnable) {
  return actionListener(runnable, null);
}

static ActionListener actionListener(final Object runnable, final Object instanceToHold) {
  if (runnable instanceof ActionListener) return (ActionListener) runnable;
  final Object info = _threadInfo();
  return new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent _evt) { try {
    _threadInheritInfo(info);
     AutoCloseable __0 = holdInstance(instanceToHold); try {
    callF(runnable);
  } finally { _close(__0); }} catch (Throwable __e) { messageBox(__e); }}};
}
static Runnable wrapAsActivity(Object r) {
  return toRunnable(r);
}
static Runnable toRunnable(final Object o) {
  if (o instanceof Runnable) return (Runnable) o;
  return new Runnable() {  public void run() { try {  callF(o) ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "callF(o)"; }};
}
static int toInt_checked(long l) {
  if (l != (int) l) throw fail("Too large for int: " + l);
  return (int) l;
}
static Throwable getException(Runnable r) {
  try {
    callF(r);
    return null;
  } catch (Throwable e) {
    return e;
  }
}
static AutoCloseable dm_enter(Object mod) {
  return (AutoCloseable) callOpt(dm_getModule(mod), "enter");
}
static String shortenSnippetID(String snippetID) {
  if (snippetID.startsWith("#"))
    snippetID = snippetID.substring(1);
  String httpBlaBla = "http://tinybrain.de/";
  if (snippetID.startsWith(httpBlaBla))
    snippetID = snippetID.substring(httpBlaBla.length());
  return "" + parseLong(snippetID);
}
static Map vm_generalMap_map;

static Map vm_generalMap() {
  if (vm_generalMap_map == null)
    vm_generalMap_map = (Map) get(javax(), "generalMap");
  return vm_generalMap_map;
}
static HashMap<String, List<Method>> callMC_cache = new HashMap();
static String callMC_key;
static Method callMC_value;

// varargs assignment fixer for a single string array argument
static Object callMC(String method, String[] arg) {
  return callMC(method, new Object[] {arg});
}

static Object callMC(String method, Object... args) { try {
  Method me;
  if (callMC_cache == null) callMC_cache = new HashMap(); // initializer time workaround
  synchronized(callMC_cache) {
    me = method == callMC_key ? callMC_value : null;
  }
  if (me != null) try {
    return invokeMethod(me, null, args);
  } catch (IllegalArgumentException e) {
    throw new RuntimeException("Can't call " + me + " with arguments " + classNames(args), e);
  }

  List<Method> m;
  synchronized(callMC_cache) {
    m = callMC_cache.get(method);
  }
  if (m == null) {
    if (callMC_cache.isEmpty()) {
      callMC_makeCache();
      m = callMC_cache.get(method);
    }
    if (m == null) throw fail("Method named " + method + " not found in main");
  }
  int n = m.size();
  if (n == 1) {
    me = m.get(0);
    synchronized(callMC_cache) {
      callMC_key = method;
      callMC_value = me;
    }
    try {
      return invokeMethod(me, null, args);
    } catch (IllegalArgumentException e) {
      throw new RuntimeException("Can't call " + me + " with arguments " + classNames(args), e);
    }
  }
  for (int i = 0; i < n; i++) {
    me = m.get(i);
    if (call_checkArgs(me, args, false))
      return invokeMethod(me, null, args);
  }
  throw fail("No method called " + method + " with arguments (" + joinWithComma(getClasses(args)) + ") found in main");
} catch (Exception __e) { throw rethrow(__e); } }

static void callMC_makeCache() {
  synchronized(callMC_cache) {
    callMC_cache.clear();
    Class _c = (Class) mc(), c = _c;
    while (c != null) {
      for (Method m : c.getDeclaredMethods())
        if ((m.getModifiers() & java.lang.reflect.Modifier.STATIC) != 0) {
          makeAccessible(m);
          multiMapPut(callMC_cache, m.getName(), m);
        }
      c = c.getSuperclass();
    }
  }
}
static <A, B> Pair<A, B> pair(A a, B b) {
  return new Pair(a, b);
}

static <A> Pair<A, A> pair(A a) {
  return new Pair(a, a);
}
static Map synchroHashMap() {
  return Collections.synchronizedMap(new HashMap());
}

static <A> A[] makeArray(Class<A> type, int n) {
  return (A[]) Array.newInstance(type, n);
}
static <A> HashSet<A> litset(A... items) {
  return lithashset(items);
}


static ThreadLocal<List<Object>> holdInstance_l = new ThreadLocal();

static AutoCloseable holdInstance(Object o) {
  if (o == null) return null;
  listThreadLocalAdd(holdInstance_l, o);
  return new AutoCloseable() {
    public void close() {
      listThreadLocalPopLast(holdInstance_l);
    }
  };
}
static String getStackTrace2(Throwable e) {
  return hideCredentials(getStackTrace(unwrapTrivialExceptionWraps(e)) + replacePrefix("java.lang.RuntimeException: ", "FAIL: ",
    hideCredentials(str(innerException2(e)))) + "\n");
}
static <A, B> Map<A, B> weakHashMap() {
  return newWeakHashMap();
}
static <A, B> List<A> keysList(Map<A, B> map) {
  return cloneListSynchronizingOn(keys(map), map);
}


static boolean methodIsStatic(Method m) {
  return (m.getModifiers() & Modifier.STATIC) != 0;
}
static <A extends Throwable> A printException(A e) {
  printStackTrace(e);
  return e;
}
static Class __javax;

static Class getJavaX() { try {
  
  return __javax;
} catch (Exception __e) { throw rethrow(__e); } }


static String formatWithThousandsSeparator(long l) {
  return NumberFormat.getInstance(new Locale("en_US")).format(l);
}
static String trim(String s) { return s == null ? null : s.trim(); }
static String trim(StringBuilder buf) { return buf.toString().trim(); }
static String trim(StringBuffer buf) { return buf.toString().trim(); }
static Object pcallFunction(Object f, Object... args) {
  try { return callFunction(f, args); } catch (Throwable __e) { _handleException(__e); }
  return null;
}
static Object vm_generalMap_put(Object key, Object value) {
  return mapPutOrRemove(vm_generalMap(), key, value);
}
static <A> Set<A> syncIdentityHashSet() {
  return (Set) synchronizedSet(identityHashSet());
}
static Map syncHashMap() {
  return synchroHashMap();
}
static <A> AutoCloseable tempSetThreadLocal(final ThreadLocal<A> tl, A a) {
  if (tl == null) return null;
  final A prev = setThreadLocal(tl, a);
  return new AutoCloseable() { public String toString() { return "tl.set(prev);"; } public void close() throws Exception { tl.set(prev); }};
}
static <A> List<A> newSubList(List<A> l, int startIndex, int endIndex) {
  return cloneList(subList(l, startIndex, endIndex));
}

static <A> List<A> newSubList(List<A> l, int startIndex) {
  return cloneList(subList(l, startIndex));
}
static <A> List<A> subList(List<A> l, int startIndex) {
  return subList(l, startIndex, l(l));
}

static <A> List<A> subList(int startIndex, int endIndex, List<A> l) {
  return subList(l, startIndex, endIndex);
}

static <A> List<A> subList(List<A> l, int startIndex, int endIndex) {
  if (l == null) return null;
  int n = l(l);
  startIndex = Math.max(0, startIndex);
  endIndex = Math.min(n, endIndex);
  if (startIndex >= endIndex) return ll();
  if (startIndex == 0 && endIndex == n) return l;
  return l.subList(startIndex, endIndex);
}


static int lastIndexOf(String a, String b) {
  return a == null || b == null ? -1 : a.lastIndexOf(b);
}

static int lastIndexOf(String a, char b) {
  return a == null ? -1 : a.lastIndexOf(b);
}
static boolean eqic(String a, String b) {
  
  
    if ((a == null) != (b == null)) return false;
    if (a == null) return true;
    return a.equalsIgnoreCase(b);
  
}



static boolean eqic(char a, char b) {
  if (a == b) return true;
  
    char u1 = Character.toUpperCase(a);
    char u2 = Character.toUpperCase(b);
    if (u1 == u2) return true;
  
  return Character.toLowerCase(u1) == Character.toLowerCase(u2);
}
static boolean ewic(String a, String b) {
  return endsWithIgnoreCase(a, b);
}


static List<VF1<Map>> _threadInheritInfo_retrievers = synchroList();

static void _threadInheritInfo(Object info) {
  if (info == null) return;
  pcallFAll(_threadInheritInfo_retrievers, (Map) info);
}
static <A> A swingConstruct(final Class<A> c, final Object... args) {
  return swing(new F0<A>() { A get() { try {  return nuObject(c, args);  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret nuObject(c, args);"; }});
}
static JTextArea jTextArea() {
  return jTextArea("");
}

static JTextArea jTextArea(final String text) {
  return jTextAreaWithUndo(text);
}
static String strUnnull(Object o) {
  return o == null ? "" : str(o);
}
static String jlabel_textAsHTML_center_ifNeeded(String text) {
  if (swic(text, "<html>") && ewic(text, "</html>")) return text;
  if (!containsNewLines(text)) return text;
  return jlabel_textAsHTML_center(text);
}
static void messageBox(final String msg) {
  if (headless()) print(msg);
  else { swing(new Runnable() {  public void run() { try { 
    JOptionPane.showMessageDialog(null, msg, "JavaX", JOptionPane.INFORMATION_MESSAGE);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "JOptionPane.showMessageDialog(null, msg, \"JavaX\", JOptionPane.INFORMATION_MES..."; }}); }
}

static void messageBox(Throwable e) {
  //showConsole();
  printStackTrace(e);
  messageBox(hideCredentials(innerException2(e)));
}
static KeyListener enterKeyListener(final Object action) {
  return new KeyAdapter() {
    public void keyPressed(KeyEvent ke) {
      if (ke.getKeyCode() == KeyEvent.VK_ENTER)
        pcallF(action);
    }
  };
}
static Runnable rCallOnSelectedListItem(final JList list, final Object action) {
  return new Runnable() {  public void run() { try {  pcallF(action, getSelectedItem(list)) ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "pcallF(action, getSelectedItem(list))"; }};
}
static AbstractAction abstractAction(String name, final Object runnable) {
  return new AbstractAction(name) {
    public void actionPerformed(ActionEvent evt) {
      pcallF(runnable);
    }
  };
}
static boolean isInstanceOf(Object o, Class type) {
  return type.isInstance(o);
}
static int parseInt(String s) {
  return emptyString(s) ? 0 : Integer.parseInt(s);
}

static int parseInt(char c) {
  return Integer.parseInt(str(c));
}
static int boolToInt(boolean b) {
  return b ? 1 : 0;
}
static long parseLong(String s) {
  if (empty(s)) return 0;
  return Long.parseLong(dropSuffix("L", s));
}

static long parseLong(Object s) {
  return Long.parseLong((String) s);
}
static List<Class> getClasses(Object[] array) {
  List<Class> l = emptyList(l(array));
  for (Object o : array) l.add(_getClass(o));
  return l;
}
static <A, B> void multiMapPut(Map<A, List<B>> map, A a, B b) {
  List<B> l = map.get(a);
  if (l == null)
    map.put(a, l = new ArrayList());
  l.add(b);
}


static <A> HashSet<A> lithashset(A... items) {
  HashSet<A> set = new HashSet();
  for (A a : items) set.add(a);
  return set;
}


static <A> void listThreadLocalAdd(ThreadLocal<List<A>> tl, A a) {
  List<A> l = tl.get();
  if (l == null) tl.set(l = new ArrayList());
  l.add(a);
}
static <A> A listThreadLocalPopLast(ThreadLocal<List<A>> tl) {
  List<A> l = tl.get();
  if (l == null) return null;
  A a = popLast(l);
  if (empty(l)) tl.set(null);
  return a;
}
static Throwable unwrapTrivialExceptionWraps(Throwable e) {
  if (e == null) return e;
  while (e.getClass() == RuntimeException.class
    && e.getCause() != null && eq(e.getMessage(), str(e.getCause())))
    e = e.getCause();
  return e;
}
static String replacePrefix(String prefix, String replacement, String s) {
  if (!startsWith(s, prefix)) return s;
  return replacement + substring(s, l(prefix));
}
static Throwable innerException2(Throwable e) {
  if (e == null) return null;
  while (empty(e.getMessage()) && e.getCause() != null)
    e = e.getCause();
  return e;
}
static <A> ArrayList<A> cloneListSynchronizingOn(Collection<A> l, Object mutex) {
  if (l == null) return new ArrayList();
  synchronized(mutex) {
    return new ArrayList<A>(l);
  }
}
static Object callFunction(Object f, Object... args) {
  return callF(f, args);
}
static <A, B> B mapPutOrRemove(Map<A, B> map, A key, B value) {
  if (map != null && key != null)
    if (value != null) return map.put(key, value);
    else return map.remove(key);
  return null;
}
static <A> Set<A> synchronizedSet() {
  return synchroHashSet();
}

static <A> Set<A> synchronizedSet(Set<A> set) {
  return Collections.synchronizedSet(set);
}
static <A> Set<A> identityHashSet() {
  return Collections.newSetFromMap(new IdentityHashMap());
}
static <A> A setThreadLocal(ThreadLocal<A> tl, A value) {
  if (tl == null) return null;
  A old = tl.get();
  tl.set(value);
  return old;
}
static String asString(Object o) {
  return o == null ? null : o.toString();
}
static boolean endsWithIgnoreCase(String a, String b) {
  int la = l(a), lb = l(b);
  return la >= lb && regionMatchesIC(a, la-lb, b, 0, lb);
}


static Object nuObject(String className, Object... args) { try {
  return nuObject(classForName(className), args);
} catch (Exception __e) { throw rethrow(__e); } }

// too ambiguous - maybe need to fix some callers
/*static O nuObject(O realm, S className, O... args) {
  ret nuObject(_getClass(realm, className), args);
}*/

static <A> A nuObject(Class<A> c, Object... args) { try {
  if (args.length == 0) return nuObjectWithoutArguments(c); // cached!
  
  Constructor m = nuObject_findConstructor(c, args);
  makeAccessible(m);
  return (A) m.newInstance(args);
} catch (Exception __e) { throw rethrow(__e); } }

static Constructor nuObject_findConstructor(Class c, Object... args) {
  for (Constructor m : c.getDeclaredConstructors()) {
    if (!nuObject_checkArgs(m.getParameterTypes(), args, false))
      continue;
    return m;
  }
  throw fail("Constructor " + c.getName() + getClasses(args) + " not found"
    + (args.length == 0 && (c.getModifiers() & java.lang.reflect.Modifier.STATIC) == 0 ? " - hint: it's a non-static class!" : ""));
}

 static boolean nuObject_checkArgs(Class[] types, Object[] args, boolean debug) {
    if (types.length != args.length) {
      if (debug)
        System.out.println("Bad parameter length: " + args.length + " vs " + types.length);
      return false;
    }
    for (int i = 0; i < types.length; i++)
      if (!(args[i] == null || isInstanceX(types[i], args[i]))) {
        if (debug)
          System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]);
        return false;
      }
    return true;
  }
static JTextArea jTextAreaWithUndo() {
  return jTextAreaWithUndo("");
}

static JTextArea jTextAreaWithUndo(final String text) {
  return jenableUndoRedo(swingNu(JTextArea.class, text));
}
static boolean swic(String a, String b) {
  return startsWithIgnoreCase(a, b);
}


static boolean containsNewLines(String s) {
  return containsNewLine(s);
}
static String jlabel_textAsHTML_center(String text) {
  return "<html><div style=\"text-align: center;\">"
    + replace(htmlencode(text), "\n", "<br>")
    + "</div></html>";
}
static boolean headless() {
  return isHeadless();
}
static String getSelectedItem(JList l) {
  return (String) l.getSelectedValue();
}

static String getSelectedItem(JComboBox cb) {
  return strOrNull(cb.getSelectedItem());
}
static boolean emptyString(String s) {
  return s == null || s.length() == 0;
}
static String dropSuffix(String suffix, String s) {
  return s.endsWith(suffix) ? s.substring(0, l(s)-l(suffix)) : s;
}
static Class<?> _getClass(String name) {
  try {
    return Class.forName(name);
  } catch (ClassNotFoundException e) {
    return null; // could optimize this
  }
}

static Class _getClass(Object o) {
  return o == null ? null
    : o instanceof Class ? (Class) o : o.getClass();
}

static Class _getClass(Object realm, String name) {
  try {
    return getClass(realm).getClassLoader().loadClass(classNameToVM(name));
  } catch (ClassNotFoundException e) {
    return null; // could optimize this
  }
}


static <A> Set<A> synchroHashSet() {
  return Collections.synchronizedSet(new HashSet<A>());
}

static boolean regionMatchesIC(String a, int offsetA, String b, int offsetB, int len) {
  
  
    return a != null && a.regionMatches(true, offsetA, b, offsetB, len);
  
}
static Map<String, Class> classForName_cache = synchroHashMap();

static Class classForName(String name) { try {
  if (classForName_cache == null) return Class.forName(name); // in class init
  Class c = classForName_cache.get(name);
  if (c == null)
    classForName_cache.put(name, c = Class.forName(name));
  return c;
} catch (Exception __e) { throw rethrow(__e); } }
static Map<Class, Constructor> nuObjectWithoutArguments_cache = newDangerousWeakHashMap();

static Object nuObjectWithoutArguments(String className) { try {
  return nuObjectWithoutArguments(classForName(className));
} catch (Exception __e) { throw rethrow(__e); } }

static <A> A nuObjectWithoutArguments(Class<A> c) { try {
  if (nuObjectWithoutArguments_cache == null)
    // in class init
    return (A) nuObjectWithoutArguments_findConstructor(c).newInstance();
    
  Constructor m = nuObjectWithoutArguments_cache.get(c);
  if (m == null)
    nuObjectWithoutArguments_cache.put(c, m = nuObjectWithoutArguments_findConstructor(c));
  return (A) m.newInstance();
} catch (Exception __e) { throw rethrow(__e); } }

static Constructor nuObjectWithoutArguments_findConstructor(Class c) {
  for (Constructor m : c.getDeclaredConstructors())
    if (empty(m.getParameterTypes())) {
      makeAccessible(m);
      return m;
    }
  throw fail("No default constructor found in " + c.getName());
}



static <A extends JTextComponent> A jenableUndoRedo(final A textcomp) {
  { swing(new Runnable() {  public void run() { try { 
    final UndoManager undo = new UndoManager();
    vm_generalWeakSet("Undo Managers").add(undo);
    textcomp.getDocument().addUndoableEditListener(new UndoableEditListener() {
      public void undoableEditHappened(UndoableEditEvent evt) {
        undo.addEdit(evt.getEdit());
      }
    });
    
    textcomp.getActionMap().put("Undo", abstractAction("Undo", new Runnable() {  public void run() { try { 
      if (undo.canUndo()) undo.undo()
    ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (undo.canUndo()) undo.undo()"; }}));
    textcomp.getActionMap().put("Redo", abstractAction("Redo", new Runnable() {  public void run() { try { 
      if (undo.canRedo()) undo.redo()
    ;
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (undo.canRedo()) undo.redo()"; }}));
    textcomp.getInputMap().put(KeyStroke.getKeyStroke("control Z"), "Undo");
    textcomp.getInputMap().put(KeyStroke.getKeyStroke("control Y"), "Redo");
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "final new UndoManager undo;\r\n    vm_generalWeakSet(\"Undo Managers\").add(undo)..."; }}); }
  return textcomp;
}
static <A> A swingNu(final Class<A> c, final Object... args) {
  return swingConstruct(c, args);
}
static boolean startsWithIgnoreCase(String a, String b) {
  return regionMatchesIC(a, 0, b, 0, b.length());
}
static boolean containsNewLine(String s) {
  return contains(s, '\n'); // screw \r, nobody needs it
}
static <A> List<A> replace(List<A> l, A a, A b) {
  for (int i = 0; i < l(l); i++)
    if (eq(l.get(i), a))
      l.set(i, b);
  return l;
}

static <A> List<A> replace(A a, A b, List<A> l) {
  return replace(l, a, b);
}

static String replace(String s, String a, String b) {
  return s == null ? null : a == null || b == null ? s : s.replace(a, b);
}

static String replace(String s, char a, char b) {
  return s == null ? null : s.replace(a, b);
}
static String htmlencode(Object o) {
  return htmlencode(str(o));
}

static String htmlencode(String s) {
  if (s == null) return "";
  StringBuilder out = new StringBuilder(Math.max(16, s.length()));
  for (int i = 0; i < s.length(); i++) {
    char c = s.charAt(i);
    if (c > 127 || c == '"' || c == '<' || c == '>' || c == '&') {
      int cp = s.codePointAt(i);
      out.append("&#x");
      out.append(intToHex_flexLength(cp));
      out.append(';');
      i += Character.charCount(cp)-1;
    } else
      out.append(c);
  }
  return out.toString();
}
static String strOrNull(Object o) {
  return o == null ? null : str(o);
}
static Class<?> getClass(String name) {
  try {
    return Class.forName(name);
  } catch (ClassNotFoundException e) {
    return null;
  }
}

static Class getClass(Object o) {
  return o instanceof Class ? (Class) o : o.getClass();
}

static Class getClass(Object realm, String name) { try {
  try {
    return getClass(realm).getClassLoader().loadClass(classNameToVM(name));
  } catch (ClassNotFoundException e) {
    return null;
  }
} catch (Exception __e) { throw rethrow(__e); } }
static String classNameToVM(String name) {
  return name.replace(".", "$");
}


static Set vm_generalWeakSet(Object name) {
  synchronized(get(javax(), "generalMap")) {
    Set set =  (Set) (vm_generalMap_get(name));
    if (set == null)
      vm_generalMap_put(name, set = newWeakHashSet());
    return set;
  }
}

static boolean contains(Collection c, Object o) {
  return c != null && c.contains(o);
}

static boolean contains(Object[] x, Object o) {
  if (x != null)
    for (Object a : x)
      if (eq(a, o))
        return true;
  return false;
}

static boolean contains(String s, char c) {
  return s != null && s.indexOf(c) >= 0;
}

static boolean contains(String s, String b) {
  return s != null && s.indexOf(b) >= 0;
}

static boolean contains(BitSet bs, int i) {
  return bs != null && bs.get(i);
}


static String intToHex_flexLength(int i) {
  return Integer.toHexString(i);
}


static <A> Set<A> newWeakHashSet() {
  return synchroWeakHashSet();
}


static <A> Set<A> synchroWeakHashSet() {
  return Collections.newSetFromMap((Map) newWeakHashMap());
}


// immutable, has strong refs
final static class _MethodCache {
  final Class c;
  final HashMap<String, List<Method>> cache = new HashMap();
  
  _MethodCache(Class c) {
  this.c = c; _init(); }
  
  void _init() {
    Class _c = c;
    while (_c != null) {
      for (Method m : _c.getDeclaredMethods())
        if (!reflection_isForbiddenMethod(m))
          multiMapPut(cache, m.getName(), makeAccessible(m));
      _c = _c.getSuperclass();
    }
    
    // add default methods - this might lead to a duplication
    // because the overridden method is also added, but it's not
    // a problem except for minimal performance loss.
    for (Class intf : allInterfacesImplementedBy(c))
      for (Method m : intf.getDeclaredMethods())
        if (m.isDefault() && !reflection_isForbiddenMethod(m))
          multiMapPut(cache, m.getName(), makeAccessible(m));

    
  }
  
  // Returns only matching methods
  Method findMethod(String method, Object[] args) { try {
    List<Method> m = cache.get(method);
    
    if (m == null) return null;
    int n = m.size();
    for (int i = 0; i < n; i++) {
      Method me = m.get(i);
      if (call_checkArgs(me, args, false))
        return me;
    }
    return null;
  } catch (Exception __e) { throw rethrow(__e); } }
  
  Method findStaticMethod(String method, Object[] args) { try {
    List<Method> m = cache.get(method);
    if (m == null) return null;
    int n = m.size();
    for (int i = 0; i < n; i++) {
      Method me = m.get(i);
      if (isStaticMethod(me) && call_checkArgs(me, args, false))
        return me;
    }
    return null;
  } catch (Exception __e) { throw rethrow(__e); } }
}static abstract class VF1<A> implements IVF1<A> {
  public abstract void get(A a);
}static class BetterLabel extends JLabel {
  boolean autoToolTip = true;
  
  BetterLabel() {
    // Listeners given out to componentPopupMenu must not directly
    // reference the outer object (-> weak map problem).
    final WeakReference < BetterLabel > me = new WeakReference(this);
    componentPopupMenu(this, BetterLabel_menuItems(me));
  }
  
  BetterLabel(String text) {
    this();
    this.setText(text);
  }
  
  public void setText(String text) {
    super.setText(text);
    if (autoToolTip)
      if (!swic(text, "<html>")) // HTML labels make super-huge, confusing tool tips
        setToolTipText(nullIfEmpty(text));
  }
}

// moved outside of class for GC reasons (see above)
static VF1<JPopupMenu> BetterLabel_menuItems(final WeakReference<BetterLabel> me) {
  return new VF1<JPopupMenu>() { public void get(JPopupMenu menu) { try { 
    addMenuItem(menu, "Copy text to clipboard", new Runnable() {  public void run() { try { 
      copyTextToClipboard(me.get().getText());
    
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "copyTextToClipboard(me.get().getText());"; }});
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "addMenuItem(menu, \"Copy text to clipboard\", r {\r\n      copyTextToClipboard(me..."; }};
}static interface IF0<A> {
  A get();
}static ThreadLocal<Boolean> DynamicObject_loading = new ThreadLocal();

static class DynamicObject {
  String className; // just the name, without the "main$"
  LinkedHashMap<String, Object> fieldValues;
  
  DynamicObject() {}
  // className = just the name, without the "main$"
  DynamicObject(String className) {
  this.className = className;}
  
  Map<String, Object> _map() { return fieldValues; }
  
  public String toString() {
    return getClass() == DynamicObject.class ? "dyn " + className
      : super.toString();
  }
}static interface IF1<A, B> {
  B get(A a);
}static class Var<A> implements IVar<A> {
  Var() {}
  Var(A v) {
  this.v = v;}

  
  A v; // you can access this directly if you use one thread
  
  public synchronized void set(A a) {
    if (v != a) {
      v = a;
      notifyAll();
    }
  }
  
  public synchronized A get() { return v; }
  public synchronized boolean has() { return v != null; }
  public synchronized void clear() { v = null; }
  
  public String toString() { return str(get()); }
}static class PersistableThrowable {
  String className;
  String msg;
  String stacktrace;
  
  PersistableThrowable() {}
  PersistableThrowable(Throwable e) {
    if (e == null)
      className = "Crazy Null Error";
    else {
      className = getClassName(e).replace('/', '.');
      msg = e.getMessage();
      stacktrace = getStackTrace_noRecord(e);
    }
  }
  
  public String toString() {
    return nempty(msg) ? className + ": " + msg : className;
  }
}static abstract class F0<A> {
  abstract A get();
}static class Pair<A, B> implements Comparable<Pair<A, B>> {
  A a;
  B b;

  Pair() {}
  Pair(A a, B b) {
  this.b = b;
  this.a = a;}
  
  public int hashCode() {
    return hashCodeFor(a) + 2*hashCodeFor(b);
  }
  
  public boolean equals(Object o) {
    if (o == this) return true;
    if (!(o instanceof Pair)) return false;
    Pair t = (Pair) o;
    return eq(a, t.a) && eq(b, t.b);
  }
  
  public String toString() {
    return "<" + a + ", " + b + ">";
  }
  
  public int compareTo(Pair<A, B> p) {
    if (p == null) return 1;
    int i = ((Comparable<A>) a).compareTo(p.a);
    if (i != 0) return i;
    return ((Comparable<B>) b).compareTo(p.b);
  }
}

static interface IVF1<A> {
  void get(A a);
}static interface IVar<A> {
  void set(A a);
  A get();
  default boolean has() { return get() != null; }
  default void clear() { set(null); }
}

static boolean reflection_isForbiddenMethod(Method m) {
  return m.getDeclaringClass() == Object.class
    && eqOneOf(m.getName(), "finalize", "clone", "registerNatives");
}
static Set<Class> allInterfacesImplementedBy(Class c) {
  if (c == null) return null;
  HashSet<Class> set = new HashSet();
  allInterfacesImplementedBy_find(c, set);
  return set;
}

static void allInterfacesImplementedBy_find(Class c, Set<Class> set) {
  if (c.isInterface() && !set.add(c)) return;
  do {
    for (Class intf : c.getInterfaces())
      allInterfacesImplementedBy_find(intf, set);
  } while ((c = c.getSuperclass()) != null);
}
static Method findMethod(Object o, String method, Object... args) {
  return findMethod_cached(o, method, args);
}

static boolean findMethod_checkArgs(Method m, Object[] args, boolean debug) {
  Class<?>[] types = m.getParameterTypes();
  if (types.length != args.length) {
    if (debug)
      System.out.println("Bad parameter length: " + args.length + " vs " + types.length);
    return false;
  }
  for (int i = 0; i < types.length; i++)
    if (!(args[i] == null || isInstanceX(types[i], args[i]))) {
      if (debug)
        System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]);
      return false;
    }
  return true;
}
static Method findStaticMethod(Class c, String method, Object... args) {
  Class _c = c;
  while (c != null) {
    for (Method m : c.getDeclaredMethods()) {
      if (!m.getName().equals(method))
        continue;

      if ((m.getModifiers() & Modifier.STATIC) == 0 || !findStaticMethod_checkArgs(m, args))
        continue;

      return m;
    }
    c = c.getSuperclass();
  }
  return null;
}

static boolean findStaticMethod_checkArgs(Method m, Object[] args) {
  Class<?>[] types = m.getParameterTypes();
  if (types.length != args.length)
    return false;
  for (int i = 0; i < types.length; i++)
    if (!(args[i] == null || isInstanceX(types[i], args[i])))
      return false;
  return true;
}



static ThreadLocal<MouseEvent> componentPopupMenu_mouseEvent;

static void componentPopupMenu_init() {
  { swing(new Runnable() {  public void run() { try { 
    if (componentPopupMenu_mouseEvent == null)
      componentPopupMenu_mouseEvent = (ThreadLocal<MouseEvent>) vm_generalMap_get("mouseEvent");
    if (componentPopupMenu_mouseEvent == null)
      vm_generalMap_put("componentPopupMenu_mouseEvent" , componentPopupMenu_mouseEvent = new ThreadLocal());
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "if (componentPopupMenu_mouseEvent == null)\r\n      componentPopupMenu_mouseEve..."; }}); }
}

// menuMaker = voidfunc(JPopupMenu)
static void componentPopupMenu(final JComponent component, final Object menuMaker) {
  if (component == null || menuMaker == null) return;
  { swing(new Runnable() {  public void run() { try { 
    Object adapter = componentPopupMenu_initForComponent(component);
    ((List) _get(adapter, "maker")).add(menuMaker);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "Object adapter = componentPopupMenu_initForComponent(component);\r\n    ((List)..."; }}); }
}

static Object componentPopupMenu_initForComponent(final JComponent component) {
  return component == null ? null : swing(new F0<Object>() { Object get() { try { 
    componentPopupMenu_init();
    Object adapter = findComponentPopupMenuListener_gen(component);
    if (adapter == null) {
      componentPopupMenu_Adapter a = new componentPopupMenu_Adapter();
      component.addMouseListener(a);
      adapter = a;
    }
    return adapter;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "componentPopupMenu_init();\r\n    O adapter = findComponentPopupMenuListener_ge..."; }});
}

static class componentPopupMenu_Adapter extends MouseAdapter {
  List maker = new ArrayList();
  boolean internalFrameLeftButtonMagic = false;
  
  Point pressedAt;

  public void mousePressed(MouseEvent e) {
    displayMenu(e);
    pressedAt = internalFrameLeftButtonMagic && e.getClickCount() == 1 && internalFrameActive(e.getComponent()) ? e.getLocationOnScreen() : null;
  }
  
  public void mouseReleased(MouseEvent e) {
    // TODO: show a little less often on left mouse click
    if (internalFrameLeftButtonMagic && eq(pressedAt, e.getLocationOnScreen()))
      displayMenu2(e);
    else
      displayMenu(e);
  }

  void displayMenu(MouseEvent e) {
    if (e.getSource() instanceof JInternalFrame) return;
    if (e.isPopupTrigger()) displayMenu2(e);
  }
    
  void displayMenu2(MouseEvent e) {
    JPopupMenu menu = new JPopupMenu();
    int emptyCount = menu.getComponentCount();
    
     AutoCloseable __0 = tempSetTL(componentPopupMenu_mouseEvent, e); try {
    for (Object menuMaker : maker)
      pcallF(menuMaker, menu);
      
    vmBus_send("showingPopupMenu", e.getComponent(), menu);
    
    // show menu if any items in it
    if (menu.getComponentCount() != emptyCount)
      menu.show(e.getComponent(), e.getX(), e.getY());
  } finally { _close(__0); }}
}


static <A extends JComponent> A setToolTipText(final A c, final Object toolTip) {
  if (c == null) return null;
  { swing(new Runnable() {  public void run() { try { 
    String s = nullIfEmpty(str(toolTip));
    if (neq(s, c.getToolTipText()))
      c.setToolTipText(s);
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "String s = nullIfEmpty(str(toolTip));\r\n    if (neq(s, c.getToolTipText()))\r\n ..."; }}); }
  return c;
}

static <A extends JComponent> A setToolTipText(Object toolTip, A c) {
  return setToolTipText(c, toolTip);
}
static String nullIfEmpty(String s) {
  return isEmpty(s) ? null : s;
}

static <A, B> Map<A, B> nullIfEmpty(Map<A, B> map) {
  return isEmpty(map) ? null : map;
}

static <A> List<A> nullIfEmpty(List<A> l) {
  return isEmpty(l) ? null : l;
}
static void addMenuItem(JPopupMenu menu, String text, Object action) {
  menu.add(jmenuItem(text, action));
}

static void addMenuItem(JPopupMenu menu, JMenuItem menuItem) {
  menu.add(menuItem);
}

static void addMenuItem(JMenu menu, String text, Object action) {
  menu.add(jmenuItem(text, action));
}

static void addMenuItem(Menu menu, String text, Object action) {
  menu.add(menuItem(text, action));
}

static void addMenuItem(JMenu menu, JMenuItem menuItem) {
  menu.add(menuItem);
}



static String copyTextToClipboard(Object _text) {
  String text = str(_text);
  StringSelection selection = new StringSelection(text);
  Toolkit.getDefaultToolkit().getSystemClipboard().setContents(selection, selection);
  vmBus_send("newClipboardContents", text);
  return text;
}
static int hashCodeFor(Object a) {
  return a == null ? 0 : a.hashCode();
}
static <A> A set(A o, String field, Object value) {
  if (o == null) return null;
  if (o instanceof Class) set((Class) o, field, value);
  else try {
    Field f = set_findField(o.getClass(), field);
    makeAccessible(f);
    smartSet(f, o, value);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
  return o;
}

static void set(Class c, String field, Object value) {
  if (c == null) return;
  try {
    Field f = set_findStaticField(c, field);
    makeAccessible(f);
    smartSet(f, null, value);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}
  
static Field set_findStaticField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field) && (f.getModifiers() & java.lang.reflect.Modifier.STATIC) != 0)
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  throw new RuntimeException("Static field '" + field + "' not found in " + c.getName());
}

static Field set_findField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  throw new RuntimeException("Field '" + field + "' not found in " + c.getName());
}


static Method findMethod_cached(Object o, String method, Object... args) { try {
  if (o == null) return null;
  if (o instanceof Class) {
    _MethodCache cache = callOpt_getCache(((Class) o));
    List<Method> methods = cache.cache.get(method);
    if (methods != null) for (Method m : methods)
      if (isStaticMethod(m) && findMethod_checkArgs(m, args, false))
        return m;
    return null;
  } else {
    _MethodCache cache = callOpt_getCache(o.getClass());
    List<Method> methods = cache.cache.get(method);
    if (methods != null) for (Method m : methods)
      if (findMethod_checkArgs(m, args, false))
        return m;
    return null;
  }
} catch (Exception __e) { throw rethrow(__e); } }

static <A> A _get(List<A> l, int idx) {
  return l != null && idx >= 0 && idx < l(l) ? l.get(idx) : null;
}

static Object _get(Object o, String field) {
  return get(o, field);
}

static Object _get(String field, Object o) {
  return get(o, field);
}
static <A> A _get(A[] l, int idx) {
  return idx >= 0 && idx < l(l) ? l[idx] : null;
}
static Object findComponentPopupMenuListener_gen(final JComponent c) {
  return c == null ? null : swing(new F0<Object>() { Object get() { try { 
    return firstWithClassShortNamed("componentPopupMenu_Adapter", c.getMouseListeners());
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret firstWithClassShortNamed('componentPopupMenu_Adapter, c.getMouseListeners..."; }});
}
static boolean internalFrameActive(Component c) {
  final JInternalFrame f = getInternalFrame(c);
  return f != null && swing(new F0<Boolean>() { Boolean get() { try {  return f.isSelected();  } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "ret f.isSelected();"; }});
}
static boolean isEmpty(Collection c) {
  return c == null || c.isEmpty();
}

static boolean isEmpty(CharSequence s) {
  return s == null || s.length() == 0;
}

static boolean isEmpty(Object[] a) { return a == null || a.length == 0; }
static boolean isEmpty(byte[] a) { return a == null || a.length == 0; }

static boolean isEmpty(Map map) {
  return map == null || map.isEmpty();
}
static boolean jmenuItem_newThreads = false;

static JMenuItem jmenuItem(final String text) {
  return jMenuItem(text, null);
}

static JMenuItem jmenuItem(final String text, final Object r) {
  return swing(new F0<JMenuItem>() { JMenuItem get() { try { 
    Pair<String, Integer> p = jmenu_autoMnemonic(dropPrefix("[disabled] ", text));
    JMenuItem mi = new JMenuItem(p.a);
    if (startsWith(text, "[disabled] ")) disableMenuItem(mi);
    if (p.b != 0) mi.setMnemonic(p.b);
    mi.addActionListener(jmenuItem_newThreads
      ? actionListenerInNewThread(r)
      : actionListener(r));
    return mi;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "Pair<S, Int> p = jmenu_autoMnemonic(dropPrefix(\"[disabled] \", text));\r\n    JM..."; }});
}
static MenuItem menuItem(String text, final Object r) {
  MenuItem mi = new MenuItem(text);
  mi.addActionListener(actionListener(r));
  return mi;
}
static void smartSet(Field f, Object o, Object value) throws Exception {
  try {
    f.set(o, value);
  } catch (Exception e) {
    Class type = f.getType();
    
    // take care of common case (long to int)
    if (type == int.class && value instanceof Long)
      value = ((Long) value).intValue();
    
    if (type == LinkedHashMap.class && value instanceof Map)
      { f.set(o, asLinkedHashMap((Map) value)); return; }
    
    
    throw e;
  }
}


static <A> A firstWithClassShortNamed(String shortName, Iterable<A> l) {
  if (l != null) for (A o : l)
    if (eq(shortClassName(o), shortName))
      return o;
  return null;
}

static <A> A firstWithClassShortNamed(String shortName, A[] l) {
  if (l != null) for (A o : l)
    if (eq(shortClassName(o), shortName))
      return o;
  return null;
}
static JInternalFrame getInternalFrame(final Object _o) {
  return _o == null ? null : swing(new F0<JInternalFrame>() { JInternalFrame get() { try { 
    Object o = _o;
    if (o instanceof ButtonGroup) o = first(buttonsInGroup((ButtonGroup) o));
    if (!(o instanceof Component)) return null;
    Component c = (Component) o;
    while (c != null) {
      if (c instanceof JInternalFrame) return (JInternalFrame) c;
      c = c.getParent();
    }
    return null;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "O o = _o;\r\n    if (o instanceof ButtonGroup) o = first(buttonsInGroup((Button..."; }});
}
static JMenuItem jMenuItem(final String text) {
  return jmenuItem(text);
}

static JMenuItem jMenuItem(String text, Object r) {
  return jmenuItem(text, r);
}
static Pair<String, Integer> jmenu_autoMnemonic(String s) {
  int i = indexOf(s, '&');
  if (i >= 0 && i < l(s) && isLetterOrDigit(s.charAt(i+1)))
    return pair(substring(s, 0, i) + substring(s, i+1), (int) s.charAt(i+1));
  return pair(s, 0);
}
static JMenuItem disableMenuItem(final JMenuItem mi) {
  if (mi != null) { swing(new Runnable() {  public void run() { try {  mi.setEnabled(false); 
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "mi.setEnabled(false);"; }}); }
  return mi;
}
static ActionListener actionListenerInNewThread(final Object runnable) {
  return actionListenerInNewThread(runnable, null);
}

static ActionListener actionListenerInNewThread(final Object runnable, final Object instanceToHold) {
  if (runnable instanceof ActionListener) return (ActionListener) runnable;
  return new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent _evt) { try {
    startThread("Action Listener", new Runnable() {  public void run() { try {    
       AutoCloseable __0 = holdInstance(instanceToHold); try {
      callF(runnable);
    } finally { _close(__0); }
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "AutoCloseable __0 = holdInstance(instanceToHold); try {\r\n      callF(runnable..."; }});
  } catch (Throwable __e) { messageBox(__e); }}};
}


static List<AbstractButton> buttonsInGroup(ButtonGroup g) {
  if (g == null) return ll();
  return asList(g.getElements());
}
static boolean isLetterOrDigit(char c) {
  return Character.isLetterOrDigit(c);
}
static Thread startThread(Object runnable) {
  return startThread(defaultThreadName(), runnable);
}

static Thread startThread(String name, Object runnable) {
  runnable = wrapAsActivity(runnable);
  return startThread(newThread(toRunnable(runnable), name));
}

static Thread startThread(Thread t) {
  
  _registerThread(t);
  
  t.start();
  return t;
}


static String defaultThreadName_name;

static String defaultThreadName() {
  if (defaultThreadName_name == null)
    defaultThreadName_name = "A thread by " + programID();
  return defaultThreadName_name;
}
// runnable = Runnable or String (method name)
static Thread newThread(Object runnable) {
  return new Thread(_topLevelErrorHandling(toRunnable(runnable)));
}

static Thread newThread(Object runnable, String name) {
  if (name == null) name = defaultThreadName();
  return new Thread(_topLevelErrorHandling(toRunnable(runnable)), name);
}

static Thread newThread(String name, Object runnable) {
  return newThread(runnable, name);
}
static Map<Thread, Boolean> _registerThread_threads;
static Object _onRegisterThread; // voidfunc(Thread)

static Thread _registerThread(Thread t) {
  if (_registerThread_threads == null)
    _registerThread_threads = newWeakHashMap();
  _registerThread_threads.put(t, true);
  vm_generalWeakSubMap("thread2mc").put(t, weakRef(mc()));
  callF(_onRegisterThread, t);
  return t;
}

static void _registerThread() { _registerThread(Thread.currentThread()); }


static Runnable _topLevelErrorHandling(final Runnable runnable) {
  final Object info = _threadInfo();
  return new Runnable() {  public void run() { try { 
    try {
      _threadInheritInfo(info);
      runnable.run();
    } catch (Throwable __e) { _handleException(__e); }
  
} catch (Exception __e) { throw rethrow(__e); } }  public String toString() { return "pcall {\r\n      _threadInheritInfo(info);\r\n      runnable.run();\r\n    }"; }};
}
static Map vm_generalWeakSubMap(Object name) {
  synchronized(get(javax(), "generalMap")) {
    Map map =  (Map) (vm_generalMap_get(name));
    if (map == null)
      vm_generalMap_put(name, map = newWeakMap());
    return map;
  }
}

static <A> WeakReference<A> weakRef(A a) {
  return newWeakReference(a);
}


static <A, B> Map<A, B> newWeakMap() {
  return newWeakHashMap();
}
static <A> WeakReference<A> newWeakReference(A a) {
  return a == null ? null : new WeakReference(a);
}

}