VM_Entrypoints.classLoaderDefinedPackages.setObjectValue(vmClassLoader, new HashMap());
VM_Entrypoints.classLoaderDefinedPackages.setObjectValueUnchecked(vmClassLoader, new HashMap());
  public static void boot() {    zipFileCache = new HashMap();    // the following idiot reflection hack is because the field is final :(    if (VM.runningVM) {      try {	VM_Entrypoints.classLoaderDefinedPackages.setObjectValue(vmClassLoader, new HashMap());      } catch (Exception e) {	VM.sysWriteln("failed to setup system class loader");	VM.sysExit(-1);      }    }  }