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https://issues.apache.org/jira/browse/WICKET-3618?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13091921#comment-13091921
]
Konstantin Ignatyev commented on WICKET-3618:
---------------------------------------------
I also see this exception happening in 1.5-TRUNK but not for this code though,
the problem is that stack trace gives no clue which of my components is causing
this error to occur
<2011-08-26 11:04:14,493> ERROR [org.apache.wicket.DefaultExceptionMapper] -
Unexpected error occurred (qtp1484171702-46)
java.lang.IllegalStateException: Header was already written to response!
at
org.apache.wicket.protocol.http.HeaderBufferingWebResponse.checkHeader(HeaderBufferingWebResponse.java:64)
at
org.apache.wicket.protocol.http.HeaderBufferingWebResponse.setDateHeader(HeaderBufferingWebResponse.java:134)
at
org.apache.wicket.protocol.http.BufferedWebResponse$SetDateHeaderAction.invoke(BufferedWebResponse.java:298)
at
org.apache.wicket.protocol.http.BufferedWebResponse.writeTo(BufferedWebResponse.java:552)
at
org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:185)
at
org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:147)
at
org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:719)
at
org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:63)
at
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:274)
at
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:283)
at
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:283)
at
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:283)
at
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:283)
at
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:283)
at
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:283)
at
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:283)
at
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:283)
at
org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:226)
at
org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:253)
at
org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:162)
at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:218)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1323)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:476)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:517)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:225)
at
org.eclipse.jetty.server.handler.ContextHandler.__doHandle(ContextHandler.java:937)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java)
at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:406)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:183)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:871)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:247)
at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110)
at org.eclipse.jetty.server.Server.handle(Server.java:346)
at
org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:589)
at
org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:1048)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:601)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:214)
at
org.eclipse.jetty.server.HttpConnection.handle(HttpConnection.java:411)
at
org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:535)
at
org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:40)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:529)
at java.lang.Thread.run(Thread.java:680)
> IllegalStateException: Header was already written to response!
> --------------------------------------------------------------
>
> Key: WICKET-3618
> URL: https://issues.apache.org/jira/browse/WICKET-3618
> Project: Wicket
> Issue Type: Bug
> Components: wicket
> Affects Versions: 1.5-RC3
> Environment: windows xp
> Reporter: kukushi
> Assignee: Pedro Santos
> Fix For: 1.5-RC4
>
> Attachments: wicket-1.5-test.zip
>
>
> Getting this error for no apparent reason, the code works fine on wicket
> 1.4.17. Code example with error is attached.
> Click on the 'click here' link to see the error occur in the console, below
> is part of the stack trace.
> ERROR - DefaultExceptionMapper - Unexpected error occurred
> java.lang.IllegalStateException: Header was already written to response!
> at
> org.apache.wicket.protocol.http.HeaderBufferingWebResponse.checkHeader(HeaderBufferingWebResponse.java:62)
> at
> org.apache.wicket.protocol.http.HeaderBufferingWebResponse.setDateHeader(HeaderBufferingWebResponse.java:131)
> at
> org.apache.wicket.protocol.http.BufferedWebResponse$SetDateHeaderAction.invoke(BufferedWebResponse.java:241)
> at
> org.apache.wicket.protocol.http.BufferedWebResponse.writeTo(BufferedWebResponse.java:487)
> at
> org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:225)
> at
> org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:139)
> at
> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:715)
> at
> org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:63)
> at
> org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:274)
> at
> org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:283)
> at
> org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:283)
> at
> org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:283)
> at
> org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:283)
> at
> org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:283)
> at
> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:227)
> at
> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:253)
> at
> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:138)
> at
> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194)
> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1323)
> at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:474)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
> at
> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:517)
> at
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:935)
> at
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:404)
> at
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:184)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:870)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
> at
> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:247)
> at
> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:151)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
> at org.eclipse.jetty.server.Server.handle(Server.java:346)
> at
> org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:596)
> at
> org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:1051)
> at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:592)
> at
> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:214)
> at
> org.eclipse.jetty.server.HttpConnection.handle(HttpConnection.java:426)
> at
> org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:241)
> at
> org.eclipse.jetty.server.ssl.SslSocketConnector$SslConnectorEndPoint.run(SslSocketConnector.java:646)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:528)
> at java.lang.Thread.run(Thread.java:619)
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