@Override
         public void handle(IAsyncResult<IApiConnectionResponse> result) {
             Assert.assertTrue(result.isError());
             System.out.println(result.getError());
             Assert.assertTrue(result.getError() instanceof ConnectorException);
         }
Scenario:
  - CA is only in API trust store, missing from gateway trust store
  - Gateway does not trust API, as it does not trust CA
  - API trusts gateway via CA
gateway/platforms/servlet/src/test/java/io/apiman/gateway/platforms/servlet/auth/tls/StandardTLSTest.java