@Test(expected = IllegalArgumentException.class)
public void handleCallback_NullParamToken() throws IOException {

	OAuthAuthenticateValidatorCallbackHandler loginCallbackHandler =  Mockito.spy(new OAuthAuthenticateValidatorCallbackHandler());
	OAuthBearerValidatorCallback oauthBearerTokenCallback = Mockito.spy(new OAuthBearerValidatorCallback("test"));
	Mockito.doReturn(null).when(oauthBearerTokenCallback).tokenValue();
	loginCallbackHandler.handleCallback(oauthBearerTokenCallback);
}