RE: Extracting object from Response when ServerWebApplicationException occurs

[Marcos Díez Fernández]

Hi Sergey,

That code is the one that works, unmarshalling from the errorMessage I don't 
get the exception mentioned before.
This exception is produced when trying to read from the entity, without calling 
getMessage, doing this:

                ErrorDetail errorDetail = (ErrorDetail) jsonProvider.readFrom(
                                                (Class)ErrorDetail.class,
                                                (Class)ErrorDetail.class,
                                                new Annotation[]{},
                                                MediaType.APPLICATION_JSON_TYPE,
                                                metadataMap,
                                                
(InputStream)response.getEntity());

When I first catch the ServerWebApplicationException, I can see that the 
errorMessage has already been initialized.
So if ServerWebApplicationException.getMessage() is called, it won't call 
readErrorMessage():

    public String getMessage() {
        if (errorMessage == null) {
            errorMessage = readErrorMessage();
        }
        return errorMessage;
    }

Debugging this method I can see this stack the first time getMessage it's 
called:

                ServerWebApplicationException.getMessage() line: 71
                ServerWebApplicationException.toString() line: 107
                Fault(Throwable).<init>(Throwable) line: 242
                Fault(Exception).<init>(Throwable) line: 77
                Fault(RuntimeException).<init>(Throwable) line: 77
                Fault(UncheckedException).<init>(Throwable) line: 43
                Fault.<init>(Throwable) line: 77
                ClientProxyImpl.checkResponse(Method, Response, Message) line: 
243
                ClientProxyImpl.handleResponse(HttpURLConnection, Message, 
OperationResourceInfo) line: 453
                ClientProxyImpl.doChainedInvocation(URI, 
MultivaluedMap<String,String>, OperationResourceInfo, Object[], int, 
MultivaluedMap<ParameterType,Parameter>, List<Object>) line: 445
                ClientProxyImpl.invoke(Object, Method, Object[]) line: 177
                $Proxy20.getLiquidaciones(Solicitar) line: not available
                LiquidacionesServiceClient.getLiquidaciones(String, int) line: 
75
                
LiquidacionesServiceClientErrorTest.testErrorLiquidacionesSolicitarVersionZero()
 line: 63
                NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) 
line: not available [native method]
                NativeMethodAccessorImpl.invoke(Object, Object[]) line: 39
                DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 25
                Method.invoke(Object, Object...) line: 597
                TestMethod.invoke(Object) line: 59
                MethodRoadie.runTestMethod() line: 98
                MethodRoadie$2.run() line: 79
                MethodRoadie.runBeforesThenTestThenAfters(Runnable) line: 87
                MethodRoadie.runTest() line: 77
                MethodRoadie.run() line: 42
                JUnit4ClassRunner.invokeTestMethod(Method, RunNotifier) line: 88
                JUnit4ClassRunner.runMethods(RunNotifier) line: 51
                JUnit4ClassRunner$1.run() line: 44
                ClassRoadie.runUnprotected() line: 27
                ClassRoadie.runProtected() line: 37
                JUnit4ClassRunner.run(RunNotifier) line: 42
                
JUnit4TestMethodReference(JUnit4TestReference).run(TestExecution) line: 49
                TestExecution.run(ITestReference[]) line: 38
                RemoteTestRunner.runTests(String[], String, TestExecution) 
line: 467
                RemoteTestRunner.runTests(TestExecution) line: 683
                RemoteTestRunner.run() line: 390
                RemoteTestRunner.main(String[]) line: 197

So does this mean that when I catch the ServerWebApplicationException the 
stream has already been consumed, and therefore I can't obtain the unmarshalled 
object from it?

Thanks,
Marcos.

De: Sergey Beryozkin [mailto:sberyoz...@gmail.com]
Enviado el: lunes, 21 de marzo de 2011 19:15
Para: users@cxf.apache.org
CC: Marcos Díez Fernández
Asunto: Re: Extracting object from Response when ServerWebApplicationException 
occurs

Hi Marcos
2011/3/21 Marcos Díez Fernández <md...@tecsisa.com<mailto:md...@tecsisa.com>>
Hi Sergey,

I don't use ServerWebApplicationException.getMessage() and still get that 
exception.

Don't know what else I could try, so I think I'll go with the errorMessage 
unmarshalling, although it may not be the most 'proper/correct' way...

This is the code fragment from your earlier message:

 InputStream is = new ByteArrayInputStream(e.
getMessage().getBytes("UTF-8"));

       ErrorDetail errorDetail = (ErrorDetail) jsonProvider.readFrom(
                                               (Class)ErrorDetail.class,
                                               (Class)ErrorDetail.class,
                                               new Annotation[]{},
                                               MediaType.APPLICATION_JSON_TYPE,
                                               metadataMap,
                                               is);

I can also see that e.getMessage(), in case of ServerWebApppicationException, 
internally reads from response.getEntity(), you can check the source :-). 
Somewhere the stream is consumed, can you double check where it might be 
happening ? I have the test on mainline where ResponseReader is used to do the 
same...

thanks, Sergey

Thanks a lot for your help
BR,
Marcos.