private void verifyNotificationUserData(Object userData) {
// Should be a CompositeData instance
assertTrue(userData instanceof CompositeData);
CompositeData cd = (CompositeData) userData;
assertTrue(cd.containsKey("poolName"));
assertTrue(cd.containsKey("usage"));
assertTrue(cd.containsKey("count"));
assertTrue(cd.get("poolName") instanceof String);
assertTrue(((String) cd.get("poolName")).length() > 0);
assertTrue(cd.get("count") instanceof Long);
assertTrue(((Long) cd.get("count")) > 0);