@Test
public void testCredentialProvider() {

	//test credential provider is registered and return credential providers.
	cp = new RangerCredentialProvider();
	providers = cp.getCredentialProviders(url);
	if (providers != null) {
		assertTrue(url.equals(providers.get(0).toString()));
	}
	System.out.println("(2) Number of active Threads : " + Thread.activeCount());
	listThreads();
}