static bool compressedOOPSEnabled_is64bitHotSpot;
static bool compressedOOPSEnabled_compressedOOPS;
static bool compressedOOPSEnabled_checked;

static bool compressedOOPSEnabled() {
  if (compressedOOPSEnabled_checked) ret compressedOOPSEnabled_compressedOOPS;
  
  S OS_ARCH = System.getProperty("os.arch");
  S MANAGEMENT_FACTORY_CLASS = "java.lang.management.ManagementFactory";
  S HOTSPOT_BEAN_CLASS = "com.sun.management.HotSpotDiagnosticMXBean";

  S x = System.getProperty("sun.arch.data.model");
  bool is64Bit = contains(or(x, OS_ARCH), "64");
    
  if (is64Bit) {
      try {
          final Class<?> beanClazz = Class.forName(HOTSPOT_BEAN_CLASS);
          final Object hotSpotBean = Class.forName(MANAGEMENT_FACTORY_CLASS).getMethod("getPlatformMXBean", Class.class)
                  .invoke(null, beanClazz);
          if (hotSpotBean != null) {

              compressedOOPSEnabled_is64bitHotSpot = true;
              final Method getVMOptionMethod = beanClazz.getMethod("getVMOption", String.class);
              try {
                  final Object vmOption = getVMOptionMethod.invoke(hotSpotBean, "UseCompressedOops");
                  compressedOOPSEnabled_compressedOOPS = Boolean.parseBoolean(vmOption.getClass().getMethod("getValue").invoke(vmOption).toString());
              } catch (ReflectiveOperationException | RuntimeException e) {
                  compressedOOPSEnabled_is64bitHotSpot = false;
              }
          }
      } catch (ReflectiveOperationException | RuntimeException e) {
          compressedOOPSEnabled_is64bitHotSpot = false;
      }
  }
  
  compressedOOPSEnabled_checked = true;
  ret compressedOOPSEnabled_compressedOOPS;
}

Began life as a copy of #1011522