private static int GetStringRegion(VM_JNIEnvironment env) {
private static void GetStringRegion(VM_JNIEnvironment env, int strJREF, int start, int len, VM_Address buf) {
  private static int GetStringRegion(VM_JNIEnvironment env) {    if (traceJNI) VM.sysWrite("JNI called: GetStringRegion \n");       VM.sysWrite("JNI ERROR: GetStringRegion not implemented yet, exiting ...\n");    VM.sysExit(VM.exitStatusUnsupportedInternalOp);    return -1;   }