Failures (1):
  JUnit Jupiter:ITLongRunningOperation:testHttpJson_LROUnsuccessfulResponse_exceedsTotalTimeout_throwsDeadlineExceededException()
    MethodSource [className = 'com.google.showcase.v1beta1.it.ITLongRunningOperation', methodName = 'testHttpJson_LROUnsuccessfulResponse_exceedsTotalTimeout_throwsDeadlineExceededException', methodParameterTypes = '']
    => org.opentest4j.AssertionFailedError: Unexpected exception type thrown, expected: <java.util.concurrent.CancellationException> but was: <java.util.concurrent.ExecutionException>
       org.junit.jupiter.api.AssertionFailureBuilder.build(AssertionFailureBuilder.java:151)
       org.junit.jupiter.api.AssertThrows.assertThrows(AssertThrows.java:67)
       org.junit.jupiter.api.AssertThrows.assertThrows(AssertThrows.java:35)
       org.junit.jupiter.api.Assertions.assertThrows(Assertions.java:3128)
       com.google.showcase.v1beta1.it.ITLongRunningOperation.testHttpJson_LROUnsuccessfulResponse_exceedsTotalTimeout_throwsDeadlineExceededException(ITLongRunningOperation.java:187)
       [...]
     Caused by: java.util.concurrent.ExecutionException: com.google.api.gax.rpc.NotFoundException: Not Found
       com.google.common.util.concurrent.AbstractFuture.getDoneValue(AbstractFuture.java:596)
       com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:575)
       com.google.common.util.concurrent.FluentFuture$TrustedFuture.get(FluentFuture.java:91)
       com.google.common.util.concurrent.ForwardingFuture.get(ForwardingFuture.java:67)
       com.google.api.gax.longrunning.OperationFutureImpl.get(OperationFutureImpl.java:125)
       [...]
     Caused by: com.google.api.gax.rpc.NotFoundException: Not Found
       com.google.api.gax.rpc.ApiExceptionFactory.createException(ApiExceptionFactory.java:50)
       com.google.api.gax.httpjson.HttpJsonApiExceptionFactory.createApiException(HttpJsonApiExceptionFactory.java:76)
       com.google.api.gax.httpjson.HttpJsonApiExceptionFactory.create(HttpJsonApiExceptionFactory.java:54)
       com.google.api.gax.httpjson.HttpJsonExceptionCallable$ExceptionTransformingFuture.onFailure(HttpJsonExceptionCallable.java:97)
       com.google.api.core.ApiFutures$1.onFailure(ApiFutures.java:84)
       [...]
     Caused by: com.google.api.client.http.HttpResponseException: 404 Not Found
GET http://localhost:7469/v1beta1/operations/google.showcase.v1beta1.Echo/Wait/CgwI2/vuwYQvJnU7AEaHgocaHR0cGpzb25XYWl0Q29udGVudF8xMHNEZWxheQ==
{"error":{"code":404,"message":"Operation \"operations/google.showcase.v1beta1.Echo/Wait/CgwI2/vuwYQvJnU7AEaHgocaHR0cGpzb25XYWl0Q29udGVudF8xMHNEZWxheQ==\" not found.","details":[],"Body":"","Header":null,"Errors":null}}
       com.google.api.client.http.HttpResponseException$Builder.build(HttpResponseException.java:293)
       com.google.api.client.http.HttpRequest.execute(HttpRequest.java:1118)
       com.google.api.gax.httpjson.HttpRequestRunnable.run(HttpRequestRunnable.java:114)
       [...]