code: public void cacheEntryChanged(final ChangeEvent event) {
          if (bUpdateChangeListener) {
              synchronized (hsChangeListeners) {
                  if (changeListenerCount > 0) {
                      currentChangeListeners = new ChangeListener[changeListenerCount];
                      hsChangeListeners.toArray(currentChangeListeners);
                  } else {
                      currentChangeListeners = EMPTY_CHANGE_LISTENERS;
                  }
                  bUpdateChangeListener = false;
              }
          }
          try {
          	event.m_cacheName = this.cacheNameNonPrefixed;
  			for (int i = 0; i < currentChangeListeners.length; i++) {
  				final ChangeListener cl = currentChangeListeners[i];
  				if (_async) {
  					Scheduler.submit(new Runnable() {
  						@Override
  						public void run() {
  							cl.cacheEntryChanged(event);
  						}
  					});
  				} else {
  					cl.cacheEntryChanged(event);
  				}
  			}
          }
          catch (Throwable t) {
          	com.ibm.ws.ffdc.FFDCFilter.processException(t, "com.ibm.ws.cache.DCEventSource.cacheEntryChanged", "169", this);
          	if (tc.isDebugEnabled()) {
          		Tr.debug(tc, "Exception thrown in cacheEntryChanged method of ChangeListener\n" + t.toString());
          	}
          }
      }
docs: The listeners are called when the cacheEntryChange method is invoked.
  @param event The Change event to be fired.