The synchronized seems to have been there since before 2008, it is not clear why it is needed. Removing it seems to resolve the problem in my test. There are further questions, though, in particular:
Couldn't the code be optimized to construct the mutable servlet request only when there is actually a parameter that requires conversion?
Or could we maybe apply the whole filter only to certain requests?
Here the respective part of the thread dump.
"qtp1431530910-1265 - http://localhost:1810/xwiki/bin/upload/Main/WebHome@45104" prio=5 tid=0x4f1 nid=NA runnable
java.lang.Thread.State: RUNNABLE
blocks qtp1431530910-183 - http://localhost:1810/xwiki/bin/view/Main/@37169
blocks qtp1431530910-486 - http://localhost:1810/xwiki/bin/view/Main/@37073
blocks qtp1431530910-490 - http://localhost:1810/xwiki/bin/view/Main/@37203
blocks qtp1431530910-492 - http://localhost:1810/xwiki/bin/view/Main/@37204
at org.eclipse.jetty.util.SearchPattern.getLength(SearchPattern.java:275)
at org.eclipse.jetty.util.SearchPattern.match(SearchPattern.java:128)
at org.eclipse.jetty.http.MultiPart$Parser.parseContent(MultiPart.java:1615)
at org.eclipse.jetty.http.MultiPart$Parser.parse(MultiPart.java:1296)
at org.eclipse.jetty.http.MultiPartFormData$Parser$2.parse(MultiPartFormData.java:508)
at org.eclipse.jetty.http.MultiPartFormData$Parser$2.parse(MultiPartFormData.java:499)
at org.eclipse.jetty.io.content.ContentSourceCompletableFuture.parse(ContentSourceCompletableFuture.java:126)
at org.eclipse.jetty.http.MultiPartFormData$Parser.parse(MultiPartFormData.java:522)
at org.eclipse.jetty.http.MultiPartFormData$Parser.parse(MultiPartFormData.java:492)
at org.eclipse.jetty.http.MultiPartFormData.from(MultiPartFormData.java:220)
at org.eclipse.jetty.http.MultiPartFormData.onParts(MultiPartFormData.java:169)
at org.eclipse.jetty.ee11.servlet.ServletMultiPartFormData.from(ServletMultiPartFormData.java:226)
at org.eclipse.jetty.ee11.servlet.ServletMultiPartFormData.from(ServletMultiPartFormData.java:112)
at org.eclipse.jetty.ee11.servlet.ServletMultiPartFormData.getParts(ServletMultiPartFormData.java:69)
at org.eclipse.jetty.ee11.servlet.ServletApiRequest.getParts(ServletApiRequest.java:657)
at org.eclipse.jetty.ee11.servlet.ServletApiRequest.extractContentParameters(ServletApiRequest.java:1093)
at org.eclipse.jetty.ee11.servlet.ServletApiRequest.getParameters(ServletApiRequest.java:1041)
at org.eclipse.jetty.ee11.servlet.ServletApiRequest.getParameterMap(ServletApiRequest.java:1031)
at jakarta.servlet.ServletRequestWrapper.getParameterMap(ServletRequestWrapper.java:169)
at jakarta.servlet.ServletRequestWrapper.getParameterMap(ServletRequestWrapper.java:169)
at jakarta.servlet.ServletRequestWrapper.getParameterMap(ServletRequestWrapper.java:169)
at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter$SavedRequestWrapper.getParameterMap(SavedRequestRestorerFilter.java:168)
at org.xwiki.wysiwyg.internal.filter.http.MutableJakartaHttpServletRequest.<init>(MutableJakartaHttpServletRequest.java:58)
at org.xwiki.wysiwyg.internal.filter.http.MutableHttpServletRequestFactory.newInstance(MutableHttpServletRequestFactory.java:42)
- locked <0x92c0> (a org.xwiki.wysiwyg.internal.filter.http.MutableHttpServletRequestFactory)
at org.xwiki.wysiwyg.internal.converter.AbstractRequestParameterConverter.convert(AbstractRequestParameterConverter.java:95)
at org.xwiki.wysiwyg.internal.converter.DefaultRequestParameterConverter.convert(DefaultRequestParameterConverter.java:86)
at org.xwiki.wysiwyg.internal.converter.AbstractRequestParameterConverter.convert(AbstractRequestParameterConverter.java:78)
at org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:65)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:66)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:135)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:212)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SafeRedirectFilter.doFilter(SafeRedirectFilter.java:106)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.ResolveRelativeRedirectFilter.doFilter(ResolveRelativeRedirectFilter.java:129)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SourceURLResolverFilter.doFilter(SourceURLResolverFilter.java:177)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:120)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:208)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.eclipse.jetty.ee11.websocket.servlet.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:199)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.eclipse.jetty.ee11.servlet.ServletHandler$MappedServlet.handle(ServletHandler.java:1602)
at org.eclipse.jetty.ee11.servlet.ServletChannel.dispatch(ServletChannel.java:868)
at org.eclipse.jetty.ee11.servlet.ServletChannel.handle(ServletChannel.java:449)
at org.eclipse.jetty.ee11.servlet.ServletHandler.handle(ServletHandler.java:470)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:546)
at org.eclipse.jetty.ee11.servlet.SessionHandler.handle(SessionHandler.java:763)
at org.eclipse.jetty.server.handler.ContextHandler.handle(ContextHandler.java:1224)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:178)
at org.eclipse.jetty.server.Server.handle(Server.java:197)
at org.eclipse.jetty.server.internal.HttpChannelState$HandlerInvoker.run(HttpChannelState.java:720)
at org.eclipse.jetty.server.internal.HttpConnection.onFillable(HttpConnection.java:412)
at org.eclipse.jetty.server.internal.HttpConnection$FillableCallback.succeeded(HttpConnection.java:1810)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:54)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:492)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.epcRunTask(AdaptiveExecutionStrategy.java:428)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:401)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:255)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:204)
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:317)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:1009)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1239)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1194)
at java.lang.Thread.runWith(Thread.java:1596)
at java.lang.Thread.run(Thread.java:1583)
"qtp1431530910-183 - http://localhost:1810/xwiki/bin/view/Main/@37169" prio=5 tid=0xb7 nid=NA waiting for monitor entry
java.lang.Thread.State: BLOCKED
waiting for qtp1431530910-1265 - http://localhost:1810/xwiki/bin/upload/Main/WebHome@45104 to release lock on instance of org.xwiki.wysiwyg.internal.filter.http.MutableHttpServletRequestFactory(id=37568)
at org.xwiki.wysiwyg.internal.filter.http.MutableHttpServletRequestFactory.newInstance(MutableHttpServletRequestFactory.java:41)
at org.xwiki.wysiwyg.internal.converter.AbstractRequestParameterConverter.convert(AbstractRequestParameterConverter.java:95)
at org.xwiki.wysiwyg.internal.converter.DefaultRequestParameterConverter.convert(DefaultRequestParameterConverter.java:86)
at org.xwiki.wysiwyg.internal.converter.AbstractRequestParameterConverter.convert(AbstractRequestParameterConverter.java:78)
at org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:65)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:66)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:135)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:212)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SafeRedirectFilter.doFilter(SafeRedirectFilter.java:106)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.ResolveRelativeRedirectFilter.doFilter(ResolveRelativeRedirectFilter.java:129)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SourceURLResolverFilter.doFilter(SourceURLResolverFilter.java:177)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:120)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:208)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.eclipse.jetty.ee11.websocket.servlet.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:199)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.eclipse.jetty.ee11.servlet.ServletHandler$MappedServlet.handle(ServletHandler.java:1602)
at org.eclipse.jetty.ee11.servlet.ServletChannel.dispatch(ServletChannel.java:868)
at org.eclipse.jetty.ee11.servlet.ServletChannel.handle(ServletChannel.java:449)
at org.eclipse.jetty.ee11.servlet.ServletHandler.handle(ServletHandler.java:470)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:546)
at org.eclipse.jetty.ee11.servlet.SessionHandler.handle(SessionHandler.java:763)
at org.eclipse.jetty.server.handler.ContextHandler.handle(ContextHandler.java:1224)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:178)
at org.eclipse.jetty.server.Server.handle(Server.java:197)
at org.eclipse.jetty.server.internal.HttpChannelState$HandlerInvoker.run(HttpChannelState.java:720)
at org.eclipse.jetty.server.internal.HttpConnection.onFillable(HttpConnection.java:412)
at org.eclipse.jetty.server.internal.HttpConnection$FillableCallback.succeeded(HttpConnection.java:1810)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:54)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:492)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.epcRunTask(AdaptiveExecutionStrategy.java:428)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:401)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:255)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:204)
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:317)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:1009)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1239)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1194)
at java.lang.Thread.runWith(Thread.java:1596)
at java.lang.Thread.run(Thread.java:1583)
"qtp1431530910-486 - http://localhost:1810/xwiki/bin/view/Main/@37073" prio=5 tid=0x1e6 nid=NA waiting for monitor entry
java.lang.Thread.State: BLOCKED
waiting for qtp1431530910-1265 - http://localhost:1810/xwiki/bin/upload/Main/WebHome@45104 to release lock on instance of org.xwiki.wysiwyg.internal.filter.http.MutableHttpServletRequestFactory(id=37568)
at org.xwiki.wysiwyg.internal.filter.http.MutableHttpServletRequestFactory.newInstance(MutableHttpServletRequestFactory.java:41)
at org.xwiki.wysiwyg.internal.converter.AbstractRequestParameterConverter.convert(AbstractRequestParameterConverter.java:95)
at org.xwiki.wysiwyg.internal.converter.DefaultRequestParameterConverter.convert(DefaultRequestParameterConverter.java:86)
at org.xwiki.wysiwyg.internal.converter.AbstractRequestParameterConverter.convert(AbstractRequestParameterConverter.java:78)
at org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:65)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:66)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:135)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:212)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SafeRedirectFilter.doFilter(SafeRedirectFilter.java:106)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.ResolveRelativeRedirectFilter.doFilter(ResolveRelativeRedirectFilter.java:129)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SourceURLResolverFilter.doFilter(SourceURLResolverFilter.java:177)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:120)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:208)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.eclipse.jetty.ee11.websocket.servlet.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:199)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.eclipse.jetty.ee11.servlet.ServletHandler$MappedServlet.handle(ServletHandler.java:1602)
at org.eclipse.jetty.ee11.servlet.ServletChannel.dispatch(ServletChannel.java:868)
at org.eclipse.jetty.ee11.servlet.ServletChannel.handle(ServletChannel.java:449)
at org.eclipse.jetty.ee11.servlet.ServletHandler.handle(ServletHandler.java:470)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:546)
at org.eclipse.jetty.ee11.servlet.SessionHandler.handle(SessionHandler.java:763)
at org.eclipse.jetty.server.handler.ContextHandler.handle(ContextHandler.java:1224)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:178)
at org.eclipse.jetty.server.Server.handle(Server.java:197)
at org.eclipse.jetty.server.internal.HttpChannelState$HandlerInvoker.run(HttpChannelState.java:720)
at org.eclipse.jetty.server.internal.HttpConnection.onFillable(HttpConnection.java:412)
at org.eclipse.jetty.server.internal.HttpConnection$FillableCallback.succeeded(HttpConnection.java:1810)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:54)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:492)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.epcRunTask(AdaptiveExecutionStrategy.java:428)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:401)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:255)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:204)
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:317)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:1009)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1239)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1194)
at java.lang.Thread.runWith(Thread.java:1596)
at java.lang.Thread.run(Thread.java:1583)
"qtp1431530910-490 - http://localhost:1810/xwiki/bin/view/Main/@37203" prio=5 tid=0x1ea nid=NA waiting for monitor entry
java.lang.Thread.State: BLOCKED
waiting for qtp1431530910-1265 - http://localhost:1810/xwiki/bin/upload/Main/WebHome@45104 to release lock on instance of org.xwiki.wysiwyg.internal.filter.http.MutableHttpServletRequestFactory(id=37568)
at org.xwiki.wysiwyg.internal.filter.http.MutableHttpServletRequestFactory.newInstance(MutableHttpServletRequestFactory.java:41)
at org.xwiki.wysiwyg.internal.converter.AbstractRequestParameterConverter.convert(AbstractRequestParameterConverter.java:95)
at org.xwiki.wysiwyg.internal.converter.DefaultRequestParameterConverter.convert(DefaultRequestParameterConverter.java:86)
at org.xwiki.wysiwyg.internal.converter.AbstractRequestParameterConverter.convert(AbstractRequestParameterConverter.java:78)
at org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:65)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:66)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:135)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:212)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SafeRedirectFilter.doFilter(SafeRedirectFilter.java:106)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.ResolveRelativeRedirectFilter.doFilter(ResolveRelativeRedirectFilter.java:129)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SourceURLResolverFilter.doFilter(SourceURLResolverFilter.java:177)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:120)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:208)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.eclipse.jetty.ee11.websocket.servlet.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:199)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.eclipse.jetty.ee11.servlet.ServletHandler$MappedServlet.handle(ServletHandler.java:1602)
at org.eclipse.jetty.ee11.servlet.ServletChannel.dispatch(ServletChannel.java:868)
at org.eclipse.jetty.ee11.servlet.ServletChannel.handle(ServletChannel.java:449)
at org.eclipse.jetty.ee11.servlet.ServletHandler.handle(ServletHandler.java:470)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:546)
at org.eclipse.jetty.ee11.servlet.SessionHandler.handle(SessionHandler.java:763)
at org.eclipse.jetty.server.handler.ContextHandler.handle(ContextHandler.java:1224)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:178)
at org.eclipse.jetty.server.Server.handle(Server.java:197)
at org.eclipse.jetty.server.internal.HttpChannelState$HandlerInvoker.run(HttpChannelState.java:720)
at org.eclipse.jetty.server.internal.HttpConnection.onFillable(HttpConnection.java:412)
at org.eclipse.jetty.server.internal.HttpConnection$FillableCallback.succeeded(HttpConnection.java:1810)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:54)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:492)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.epcRunTask(AdaptiveExecutionStrategy.java:428)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:401)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:255)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:204)
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:317)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:1009)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1239)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1194)
at java.lang.Thread.runWith(Thread.java:1596)
at java.lang.Thread.run(Thread.java:1583)
"qtp1431530910-492 - http://localhost:1810/xwiki/bin/view/Main/@37204" prio=5 tid=0x1ec nid=NA waiting for monitor entry
java.lang.Thread.State: BLOCKED
waiting for qtp1431530910-1265 - http://localhost:1810/xwiki/bin/upload/Main/WebHome@45104 to release lock on instance of org.xwiki.wysiwyg.internal.filter.http.MutableHttpServletRequestFactory(id=37568)
at org.xwiki.wysiwyg.internal.filter.http.MutableHttpServletRequestFactory.newInstance(MutableHttpServletRequestFactory.java:41)
at org.xwiki.wysiwyg.internal.converter.AbstractRequestParameterConverter.convert(AbstractRequestParameterConverter.java:95)
at org.xwiki.wysiwyg.internal.converter.DefaultRequestParameterConverter.convert(DefaultRequestParameterConverter.java:86)
at org.xwiki.wysiwyg.internal.converter.AbstractRequestParameterConverter.convert(AbstractRequestParameterConverter.java:78)
at org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:65)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:66)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:135)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:212)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SafeRedirectFilter.doFilter(SafeRedirectFilter.java:106)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.ResolveRelativeRedirectFilter.doFilter(ResolveRelativeRedirectFilter.java:129)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SourceURLResolverFilter.doFilter(SourceURLResolverFilter.java:177)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:120)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:208)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.eclipse.jetty.ee11.websocket.servlet.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:199)
at org.eclipse.jetty.ee11.servlet.FilterHolder.doFilter(FilterHolder.java:205)
at org.eclipse.jetty.ee11.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1640)
at org.eclipse.jetty.ee11.servlet.ServletHandler$MappedServlet.handle(ServletHandler.java:1602)
at org.eclipse.jetty.ee11.servlet.ServletChannel.dispatch(ServletChannel.java:868)
at org.eclipse.jetty.ee11.servlet.ServletChannel.handle(ServletChannel.java:449)
at org.eclipse.jetty.ee11.servlet.ServletHandler.handle(ServletHandler.java:470)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:546)
at org.eclipse.jetty.ee11.servlet.SessionHandler.handle(SessionHandler.java:763)
at org.eclipse.jetty.server.handler.ContextHandler.handle(ContextHandler.java:1224)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:178)
at org.eclipse.jetty.server.Server.handle(Server.java:197)
at org.eclipse.jetty.server.internal.HttpChannelState$HandlerInvoker.run(HttpChannelState.java:720)
at org.eclipse.jetty.server.internal.HttpConnection.onFillable(HttpConnection.java:412)
at org.eclipse.jetty.server.internal.HttpConnection$FillableCallback.succeeded(HttpConnection.java:1810)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:54)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:492)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.epcRunTask(AdaptiveExecutionStrategy.java:428)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:401)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:255)
at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:204)
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:317)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:1009)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1239)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1194)
at java.lang.Thread.runWith(Thread.java:1596)
at java.lang.Thread.run(Thread.java:1583)
Thomas Mortagne on 27/Feb/26 16:01
Or could we maybe apply the whole filter only to certain requests?
Yes, that filter javadoc seems to suggest it does not really make much sense in GET requests use case.
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