@Override
  protected void clearCaches() {
    DebuggerManagerThreadImpl.assertIsManagerThread();
    if (LOG.isDebugEnabled()) {
      LOG.debug("caches cleared " + super.toString());
    }
    myFrameIndex = -1;
    myStackFrame = null;
    myIsObsolete = ThreeState.UNSURE;
    myThisReference = null;
    myClassLoader = null;
    myAllValues = null;
  }
@Override
  protected void clearCaches()