@Test
public void Test6DeleteKey() throws Exception {

	Mockito.when(restErrorUtil.createRESTException(Mockito.nullable(String.class), (MessageEnums) Mockito.any()))
			.thenReturn(new WebApplicationException());
	thrown.expect(WebApplicationException.class);
	keyREST.deleteKey(nameNl, provider, request);
	Mockito.verify(restErrorUtil).createRESTException(Mockito.anyString(), (MessageEnums) Mockito.any());
}