Wrote /root/JavaX-Caches/tmp_1961454484/main.java - 221 bytes (written=221, should be 221)
javac=0, ecj=1, useJarBot=0
Checking ECJ at port 4898 at 127.0.0.1
/root/jdk-17/bin/javac -source 11 -target 11 -nowarn -encoding utf8 -Xdiags:verbose -cp /root/.javax/x30.jar:/root/dexcompiler/android.jar:/root/dexcompiler/support-v4-22.2.1.jar:/root/javafx/javafx.base.jar:/root/javafx/javafx.graphics.jar:/root/javafx/javafx.swing.jar -d /root/JavaX-Caches/tmp_124622450 /root/JavaX-Caches/tmp_1961454484/main.java 2>&1<br><title>[Compilation Error]</title><p>Compiler errors. <a href='/tb/transpile.php?id=1002109&quick=1&medium=1'>Medium transpile.</a> <a href='/tb-int/get-transpiled.php?id=1002109&raw=1'>Show Java sources.</a> <a href='/tb/show-snippet.php?id=1002109'>Show snippet.</a> <a href='/tb/snippets.php?id=1002109'>Edit.</a></p><xmp>/root/JavaX-Caches/tmp_1961454484/main.java:1: error: class, interface, or enum expected
static boolean isNonNegativeInteger(String s) {
       ^
/root/JavaX-Caches/tmp_1961454484/main.java:3: error: class, interface, or enum expected
  if (n == 0) ret false;
  ^
/root/JavaX-Caches/tmp_1961454484/main.java:4: error: class, interface, or enum expected
  int i = 0;
  ^
/root/JavaX-Caches/tmp_1961454484/main.java:5: error: class, interface, or enum expected
  while (i < n) {
  ^
/root/JavaX-Caches/tmp_1961454484/main.java:7: error: class, interface, or enum expected
    if (c < '0' || c > '9') ret false;
    ^
/root/JavaX-Caches/tmp_1961454484/main.java:8: error: class, interface, or enum expected
    ++i;
    ^
/root/JavaX-Caches/tmp_1961454484/main.java:9: error: class, interface, or enum expected
  }
  ^
/root/JavaX-Caches/tmp_1961454484/main.java:11: error: class, interface, or enum expected
}
^
8 errors</xmp><br>