Warn::committed before unable to show problem report:|java.lang.illegalstateexception

2015-01-06 18:23:17.160:warn::committed before unable to show problem report:|java.lang.illegalstateexception: stream| | class:org.mortbay.jetty.response| file:response.java| method:getwriter| line:616-org/mortbay/jetty/response.java:616:-12015-01-06 18:23:17.160:warn::/baidumessagetest/ Message.actionjava.lang.IllegalStateException:Committedat Org.mortbay.jetty.Response.resetBuffer (Response.java : 1023) at Org.mortbay.jetty.Response.sendError (response.java:240) at Org.apache.struts2.dispatcher.DefaultDispatcherErrorHandler.handleErrorInDevMode ( DEFAULTDISPATCHERERRORHANDLER.JAVA:109) at Org.apache.struts2.dispatcher.DefaultDispatcherErrorHandler.handleError (defaultdispatchererrorhandler.java:57) At Org.apache.struts2.dispatcher.Dispatcher.sendError (dispatcher.java:909) at Org.apache.struts2.dispatcher.Dispatcher.serviceAction (dispatcher.java:576) at Org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction (executeoperations.java:81) at Org.apache.struts2.dispatcher.ng.filter.StrutsPRepareandexecutefilter.dofilter (strutsprepareandexecutefilter.java:99) at Org.mortbay.jetty.servlet.servlethandler$cachedchain.dofilter (servlethandler.java:1212) at Org.mortbay.jetty.servlet.ServletHandler.handle (servlethandler.java:399) at Org.mortbay.jetty.security.SecurityHandler.handle (securityhandler.java:216) at Org.mortbay.jetty.servlet.SessionHandler.handle (sessionhandler.java:182) at Org.mortbay.jetty.handler.ContextHandler.handle (contexthandler.java:766) at Org.mortbay.jetty.webapp.WebAppContext.handle (webappcontext.java:450) at Org.mortbay.jetty.handler.HandlerWrapper.handle (handlerwrapper.java:152) at Org.mortbay.jetty.Server.handle ( server.java:326) at Org.mortbay.jetty.HttpConnection.handleRequest (httpconnection.java:542) at Org.mortbay.jetty.httpconnection$requesthandler.headercomplete (httpconnection.java:928) at Org.mortbay.jetty.HttpParser.parseNext (httpparser.java:549) at Org.mortbay.jetty.HttpParser.parseAvailable ( httpparser.java:212) at Org.mortbay.jetty.HttpConnection.handle (Httpconnection.java:404) at Org.mortbay.io.nio.SelectChannelEndPoint.run (selectchannelendpoint.java:410) at Org.mortbay.thread.queuedthreadpool$poolthread.run (queuedthreadpool.java:582)

The cause of this error is response.getwriter () and Response.getoutputstream conflict.

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Warn::committed before unable to show problem report:|java.lang.illegalstateexception