Bug LowerCase acces to datanucleus.allowListenerUpdateAfterInit dont work

[galinafrank]

Problem
Currently, PersistenceManagerFactory.addInstanceLifecycleListener(...) throws an exception if it's called after the PMF has been initialized or after a PersistenceManager has been created:

"Configuration changes are not allowed on this PMF, since either it was generated using a JDOHelper factory method, or persistence managers have been generated."

Solution:

    boolean allowListeners = getNucleusContext().getConfiguration().getBooleanProperty("datanucleus.allowListenerUpdateAfterInit".toLowerCase(), false);

[galinafrank]

Testcase:

     properties.setProperty("datanucleus.allowListenerUpdateAfterInit","true");

    JDOPersistenceManagerFactory persistenceManagerFactory = (JDOPersistenceManagerFactory)JDOHelper.getPersistenceManagerFactory(properties);
    TrackingLifecycleListener lifecycleTracker = new TrackingLifecycleListener();
     persistenceManagerFactory.addInstanceLifecycleListener(lifecycleTracke); -> Exception