@Override
    public void newInstantiator(Instantiator instantiator) {
      invoked = true;
      try {
        newInstantiator2(instantiator);

      } catch (VirtualMachineError e) {
        SystemFailure.initiateFailure(e);
        throw e;
      } catch (Throwable t) {
        callbackError = t;
      }
    }
Returns wether or not one of this listener methods was invoked. Before returning, the
<code>invoked</code> flag is cleared.
geode-core/src/test/java/org/apache/geode/internal/DataSerializableJUnitTest.java