private static int RegisterNatives(VM_JNIEnvironment env) {
private static int RegisterNatives(VM_JNIEnvironment env, int classJREF, Address methodsAddress, int nmethods) {
  private static int RegisterNatives(VM_JNIEnvironment env) {    if (traceJNI) VM.sysWrite("JNI called: RegisterNatives  \n");    VM.sysWrite("JNI ERROR: RegisterNatives not implemented yet.");    VM.sysExit(VM.exitStatusUnsupportedInternalOp);    return -1;   }