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From "jd (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CXF-5574) CXF JAX-RS loops infinitely when server closes connection on receipt of message
Date Fri, 21 Feb 2014 08:35:21 GMT
jd created CXF-5574:
-----------------------

             Summary: CXF JAX-RS loops infinitely when server closes connection on receipt
of message
                 Key: CXF-5574
                 URL: https://issues.apache.org/jira/browse/CXF-5574
             Project: CXF
          Issue Type: Bug
          Components: JAX-RS
    Affects Versions: 2.7.10, 2.7.8
         Environment: Ubuntu 12.10 64bit
            Reporter: jd
            Priority: Blocker


I am using CXF Jax-RS using WebClient.get(InvocationCallback<T> callback). Once server
receives the request, the server closes connection (without sending any response). This causes
CXF Jax-RS to go in an infinite loop. 

Using eclipse, I was able to put breakpoints at locations described below and was able to
obtain stack traces that proves the problem. Since more than one threads become involved,
stack is broken into multiple parts.

Please help resolve this issue as this prevents using CXF JAX-RS in production environment.

The stack traces are as follows:

Stack 1:
-------
URLConnectionHTTPConduit$URLConnectionWrappedOutputStream(HTTPConduit$WrappedOutputStream).handleResponseOnWorkqueue(boolean,
boolean) line: 1126	
URLConnectionHTTPConduit$URLConnectionWrappedOutputStream.handleResponseAsync() line: 227

URLConnectionHTTPConduit$URLConnectionWrappedOutputStream(HTTPConduit$WrappedOutputStream).handleResponse()
line: 1506	
URLConnectionHTTPConduit$URLConnectionWrappedOutputStream(HTTPConduit$WrappedOutputStream).close()
line: 1310	
URLConnectionHTTPConduit(AbstractConduit).close(Message) line: 56	
URLConnectionHTTPConduit(HTTPConduit).close(Message) line: 628	
MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(Message) line: 62	
PhaseInterceptorChain.doIntercept(Message) line: 272	
WebClient(AbstractClient).doRunInterceptorChain(Message) line: 634	
WebClient.doInvokeAsync(String, Object, Class<?>, Type, Class<?>, Type, InvocationCallback<T>)
line: 942	
WebClient.doInvokeAsyncCallback(String, Object, Class<?>, Type, InvocationCallback<T>)
line: 914	
WebClient.post(Object, InvocationCallback<T>) line: 450	
MyApplicationHandler.sendRequest(MyApplicationHandler$CPendingRequest) line: 298	

Stack 2:
-------
Runnable on line 1126 of HttpConduit is run by an executor thread.
handleResponseInternal on 1129 of HttpConduit throws java.net.SocketException:
Unexpected end of file from server causing 1131 catch block to run.

The interceptor chain includes
Chain org.apache.cxf.phase.PhaseInterceptorChain@701fe362. Current flow:
  receive [PolicyInInterceptor]
  pre-protocol-frontend [ClientResponseFilterInterceptor]
  unmarshal [ClientAsyncResponseInterceptor]

Henceforth the stack is as follows: 

URLConnectionHTTPConduit$URLConnectionWrappedOutputStream(HTTPConduit$WrappedOutputStream).handleResponseOnWorkqueue(boolean,
boolean) line: 1126	
URLConnectionHTTPConduit$URLConnectionWrappedOutputStream.handleResponseAsync() line: 227

URLConnectionHTTPConduit$URLConnectionWrappedOutputStream(HTTPConduit$WrappedOutputStream).handleResponse()
line: 1506	
URLConnectionHTTPConduit$URLConnectionWrappedOutputStream(HTTPConduit$WrappedOutputStream).close()
line: 1310	
URLConnectionHTTPConduit(AbstractConduit).close(Message) line: 56	
URLConnectionHTTPConduit(HTTPConduit).close(Message) line: 628	
UpfrontConduitSelector(AbstractConduitSelector).complete(Exchange) line: 185	
WebClient(AbstractClient).preProcessResult(Message) line: 556	
WebClient.handleAsyncResponse(Message) line: 979	
WebClient.access$100(WebClient, Message) line: 80	
WebClient$ClientAsyncResponseInterceptor.handleMessage(Message) line: 1265	
PhaseInterceptorChain.doIntercept(Message) line: 272	
ClientMessageObserver.onMessage(Message) line: 56	
HTTPConduit$WrappedOutputStream$1.run() line: 1138	
AutomaticWorkQueueImpl$3.run() line: 428	
AutomaticWorkQueueImpl$1(ThreadPoolExecutor).runWorker(ThreadPoolExecutor$Worker) line: 1110

ThreadPoolExecutor$Worker.run() line: 603	
AutomaticWorkQueueImpl$AWQThreadFactory$1.run() line: 353	
Thread.run() line: 722	

Stack 3:
-------
MyApplicationHandler$CPendingRequest.failed(ClientException) line: 657	
JaxrsClientCallback<T>.handleException(Map<String,Object>, Throwable) line: 90

WebClient.handleAsyncResponse(Message) line: 988	
WebClient.access$100(WebClient, Message) line: 80	
WebClient$ClientAsyncResponseInterceptor.handleMessage(Message) line: 1265	
PhaseInterceptorChain.doIntercept(Message) line: 272	
ClientMessageObserver.onMessage(Message) line: 56	
HTTPConduit$WrappedOutputStream$1.run() line: 1138	
AutomaticWorkQueueImpl$3.run() line: 428	
AutomaticWorkQueueImpl$1(ThreadPoolExecutor).runWorker(ThreadPoolExecutor$Worker) line: 1110

ThreadPoolExecutor$Worker.run() line: 603	
AutomaticWorkQueueImpl$AWQThreadFactory$1.run() line: 353	
Thread.run() line: 722	

Following stacks 4 & 5 now repeat in an infinite loop:

Stack 4:
-------
URLConnectionHTTPConduit$URLConnectionWrappedOutputStream(HTTPConduit$WrappedOutputStream).handleResponseOnWorkqueue(boolean,
boolean) line: 1126	
URLConnectionHTTPConduit$URLConnectionWrappedOutputStream.handleResponseAsync() line: 227

URLConnectionHTTPConduit$URLConnectionWrappedOutputStream(HTTPConduit$WrappedOutputStream).handleResponse()
line: 1506	
URLConnectionHTTPConduit$URLConnectionWrappedOutputStream(HTTPConduit$WrappedOutputStream).close()
line: 1310	
URLConnectionHTTPConduit(AbstractConduit).close(Message) line: 56	
URLConnectionHTTPConduit(HTTPConduit).close(Message) line: 628	
UpfrontConduitSelector(AbstractConduitSelector).complete(Exchange) line: 185	
WebClient(AbstractClient).preProcessResult(Message) line: 556	
WebClient.handleAsyncResponse(Message) line: 979	
WebClient.access$100(WebClient, Message) line: 80	
WebClient$ClientAsyncResponseInterceptor.handleMessage(Message) line: 1265	
PhaseInterceptorChain.doIntercept(Message) line: 272	
ClientMessageObserver.onMessage(Message) line: 56	
HTTPConduit$WrappedOutputStream$1.run() line: 1138	
AutomaticWorkQueueImpl$3.run() line: 428	
AutomaticWorkQueueImpl$1(ThreadPoolExecutor).runWorker(ThreadPoolExecutor$Worker) line: 1110

ThreadPoolExecutor$Worker.run() line: 603	
AutomaticWorkQueueImpl$AWQThreadFactory$1.run() line: 353	
Thread.run() line: 722	

Stack 5:
-------
MyApplicationHandler$CPendingRequest.failed(ClientException) line: 657	
JaxrsClientCallback<T>.handleException(Map<String,Object>, Throwable) line: 90

WebClient.handleAsyncResponse(Message) line: 988	
WebClient.access$100(WebClient, Message) line: 80	
WebClient$ClientAsyncResponseInterceptor.handleMessage(Message) line: 1265	
PhaseInterceptorChain.doIntercept(Message) line: 272	
ClientMessageObserver.onMessage(Message) line: 56	
HTTPConduit$WrappedOutputStream$1.run() line: 1138	
AutomaticWorkQueueImpl$3.run() line: 428	
AutomaticWorkQueueImpl$1(ThreadPoolExecutor).runWorker(ThreadPoolExecutor$Worker) line: 1110

ThreadPoolExecutor$Worker.run() line: 603	
AutomaticWorkQueueImpl$AWQThreadFactory$1.run() line: 353	
Thread.run() line: 722	


Breakpoints:
-----------
MyApplicationHandler [line: 657] - failed
MyApplicationHandler [line 298] - sendRequest
AbstractConduit [line: 54] - close(Message)	
ClientMessageObserver [line: 56] - ClientMessageObserver	
HTTPConduit$WrappedOutputStream$1 [line: 1126] - handleResponseOnWorkqueue(boolean, boolean)

HTTPConduit$WrappedOutputStream [line: 1310] - close()	
HTTPConduit$WrappedOutputStream$1 [line: 1129] - handleResponseOnWorkqueue(boolean, boolean)

HTTPConduit$WrappedOutputStream$1 [line: 1131] - handleResponseOnWorkqueue(boolean, boolean)




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