@Nullable
  @Override
  public XDebuggerEvaluator getEvaluator() {
    if (myEvaluator == null) {
      myEvaluator = new JavaDebuggerEvaluator(myDebugProcess, this);
    }
    return myEvaluator;
  }
@Nullable
  @Override
  public XDebuggerEvaluator getEvaluator()