https://bz.apache.org/bugzilla/show_bug.cgi?id=60750

qixiaobo...@gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|INVALID                     |---

--- Comment #7 from qixiaobo...@gmail.com ---
"http-bio-8080-exec-15@10822" daemon prio=5 tid=0x1dd nid=NA runnable
  java.lang.Thread.State: RUNNABLE
          at org.apache.coyote.Response.setCommitted(Response.java:217)
          at
org.apache.coyote.http11.InternalOutputBuffer.commit(InternalOutputBuffer.java:194)
          at
org.apache.coyote.http11.AbstractHttp11Processor.action(AbstractHttp11Processor.java:776)
          at org.apache.coyote.Response.action(Response.java:174)
          at org.apache.coyote.Response.sendHeaders(Response.java:348)
          at
org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:352)
          at
org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:334)
          at
org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:101)
          at
org.springframework.http.converter.AbstractHttpMessageConverter.write(AbstractHttpMessageConverter.java:180)
          at
org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:148)

          at
org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:90)
          at
org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.handleReturnValue(RequestResponseBodyMethodProcessor.java:189)
          at
org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:69)
          at
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:122)
          at
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)
          at
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)
          at
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
          at
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
          at
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
          at
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:953)
          at
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:855)
          at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
          at
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:829)
          at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
          at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
          at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
          at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
          at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
          at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
          at
org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
          at
org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
          at
org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
          at
org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
          at
org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
          at
org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
          at
org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
          at
org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
          at
org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
          at
org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387)
          at
org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
          at
org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
          at
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)
          at
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)
          at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
          at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
          at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)
          at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
          at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
          at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
          at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
          at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
          at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
          at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:442)
          at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1082)
          at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:623)
          at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
          - locked <0x2bf4> (a org.apache.tomcat.util.net.SocketWrapper)
          at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
          at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
          at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
          at java.lang.Thread.run(Thread.java:745)




Then 

"http-bio-8080-exec-15@10822" daemon prio=5 tid=0x1dd nid=NA runnable
  java.lang.Thread.State: RUNNABLE
          at
org.apache.coyote.http11.AbstractHttp11Processor.action(AbstractHttp11Processor.java:905)
          at org.apache.coyote.Response.action(Response.java:172)
          at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
          at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
          at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
          at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:442)
          at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1082)
          at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:623)
          at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)



public void endRequest()
        throws IOException {

        if (!committed) {

            // Send the connector a request for commit. The connector should
            // then validate the headers, send them (using sendHeader) and 
            // set the filters accordingly.
            response.action(ActionCode.COMMIT, null);

        }

        if (finished)
            return;

        if (lastActiveFilter != -1)
            activeFilters[lastActiveFilter].end();
        finished = true;
    }

At this point (finished==true),tomcat will not send 


 /**
     * End the current request. It is acceptable to write extra bytes using
     * buffer.doWrite during the execution of this method.
     */
    @Override
    public long end()
        throws IOException {

        // Write end chunk
        buffer.doWrite(END_CHUNK, null);

        return 0;

    }
So the error occours.

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