static void invalidateAllSessions() {
		invalidateAllSessionsExceptCurrentSession(null);
	}
@Test
	public void testInvalidateAllSessions() {
		final SessionTestImpl session = new SessionTestImpl(true);
		sessionListener.sessionCreated(new HttpSessionEvent(session));
		SessionListener.invalidateAllSessions();
		if (!session.isInvalidated()) {
			fail("invalidateAllSessions");
		}
	}