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;

}