public void TestGlobalNetworkNumbers()
 {
     foreach (var callingCode in phoneNumberUtil.GetSupportedGlobalNetworkCallingCodes())
     {
         PhoneNumber exampleNumber =
             phoneNumberUtil.GetExampleNumberForNonGeoEntity(callingCode);
         Assert.NotNull(exampleNumber);
         if (!phoneNumberUtil.IsValidNumber(exampleNumber))
         {
             invalidCases.Add(exampleNumber);
             // LOGGER.log(Level.SEVERE, "Failed validation for " + exampleNumber.toString());
         }
     }
 }