MOIRE Antony created CXF-6943:
---------------------------------

             Summary: Dead lock on Async Response when timeout is set
                 Key: CXF-6943
                 URL: https://issues.apache.org/jira/browse/CXF-6943
             Project: CXF
          Issue Type: Bug
          Components: JAX-RS
    Affects Versions: 3.1.6, 3.0.4
         Environment: The bug was detected on :
  - Java 1.7.0_11
  - Tomcat 8.0.23
  - CXF 3.0.4
  - Red Hat 6.5

The bug is also available on :
  - Java 1.8.0_77
  - Tomcat 8.0.35
  - CXF 3.1.6
  - Red Hat 6.5
            Reporter: MOIRE Antony


Hello,

When using AsyncResponse with timeout and an external thread for the treatment, 
it seems that a dead lock appears between the main http thread and the 
treatment thread when the treatment thread finished before the main thread :

Here is the code which reproduces this issue :

    public Response asyncResponseTestKo(HttpServletRequest request, final 
AsyncResponse ar) {

        Response r = null;
        LOGGER.info("Get request asyncResponseTestKo");
        ar.setTimeout(10, TimeUnit.SECONDS);
        poolExecutor.execute(new Runnable() {

            @Override
            public void run() {
                ar.resume(Response.ok().build());
            }
        });
        try {
            Thread.sleep(2000);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        return r;
    }

The main thread error is :

2016-06-15 14:47:44

"http-nio-9080-exec-1" - Thread t@25
   java.lang.Thread.State: BLOCKED
        at 
org.apache.cxf.jaxrs.impl.AsyncResponseImpl.suspendContinuationIfNeeded(AsyncResponseImpl.java:263)
        - waiting to lock <792a9e17> (a 
org.apache.cxf.jaxrs.impl.AsyncResponseImpl) owned by "pool-1-thread-1" t@26
        at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:191)
        at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:99)
        at 
org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:59)
        at 
org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:96)
        at 
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308)
        - locked <5f36a728> (a org.apache.cxf.phase.PhaseInterceptorChain)
        at 
org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
        at 
org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:254)
        at 
org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:234)
        at 
org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:208)
        at 
org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:160)
        at 
org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:180)
        at 
org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:298)
        at 
org.apache.cxf.transport.servlet.AbstractHTTPServlet.doGet(AbstractHTTPServlet.java:222)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
        at 
org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:273)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
        at 
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
        at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
        at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
        at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
        at 
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
        at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
        at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528)
        at 
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1099)
        at 
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:672)
        at 
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520)
        at 
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1476)
        - locked <32b056bb> (a org.apache.tomcat.util.net.NioChannel)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at 
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - locked <623f9d31> (a java.util.concurrent.ThreadPoolExecutor$Worker)

The treatment thread error is :

2016-06-15 14:48:15

"pool-1-thread-1" - Thread t@26
   java.lang.Thread.State: WAITING
        at java.lang.Object.wait(Native Method)
        - waiting on <19991ed0> (a org.apache.coyote.AsyncStateMachine)
        at java.lang.Object.wait(Object.java:502)
        at 
org.apache.coyote.AsyncStateMachine.pauseNonContainerThread(AsyncStateMachine.java:430)
        at 
org.apache.coyote.AsyncStateMachine.asyncDispatch(AsyncStateMachine.java:300)
        at 
org.apache.coyote.http11.AbstractHttp11Processor.action(AbstractHttp11Processor.java:863)
        at org.apache.coyote.Request.action(Request.java:378)
        at 
org.apache.catalina.core.AsyncContextImpl.dispatch(AsyncContextImpl.java:238)
        - locked <60e59a3c> (a java.lang.Object)
        at 
org.apache.catalina.core.AsyncContextImpl.dispatch(AsyncContextImpl.java:194)
        at 
org.apache.catalina.core.AsyncContextImpl.dispatch(AsyncContextImpl.java:188)
        at 
org.apache.cxf.transport.http.Servlet3ContinuationProvider$Servlet3Continuation.redispatch(Servlet3ContinuationProvider.java:125)
        at 
org.apache.cxf.transport.http.Servlet3ContinuationProvider$Servlet3Continuation.resume(Servlet3ContinuationProvider.java:131)
        at 
org.apache.cxf.jaxrs.impl.AsyncResponseImpl.doResumeFinal(AsyncResponseImpl.java:96)
        - locked <792a9e17> (a org.apache.cxf.jaxrs.impl.AsyncResponseImpl)
        at 
org.apache.cxf.jaxrs.impl.AsyncResponseImpl.doResume(AsyncResponseImpl.java:89)
        - locked <792a9e17> (a org.apache.cxf.jaxrs.impl.AsyncResponseImpl)
        at 
org.apache.cxf.jaxrs.impl.AsyncResponseImpl.resume(AsyncResponseImpl.java:78)
        at test.AsyncResponseTestImpl$2.run(AsyncResponseTestImpl.java:72)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - locked <4f68ae20> (a java.util.concurrent.ThreadPoolExecutor$Worker)

Best regards



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