Useragent Konqueror causes a MyFaces Nullpointer Exception
----------------------------------------------------------
Key: MYFACES-2026
URL: https://issues.apache.org/jira/browse/MYFACES-2026
Project: MyFaces Core
Issue Type: Bug
Affects Versions: 1.2.3
Reporter: Felix Becker
When opening a myFaces Webapp with Konqueror (KDE 3.5.4 RHEL 5) the application
throws a NullPointerException:
java.lang.NullPointerException
at
org.apache.myfaces.trinidadinternal.style.cache.FileSystemStyleCache$Key.hashCode(FileSystemStyleCache.java:1131)
at java.util.Hashtable.get(Hashtable.java:336)
at
org.apache.myfaces.trinidadinternal.style.cache.FileSystemStyleCache._getEntry(FileSystemStyleCache.java:447)
at
org.apache.myfaces.trinidadinternal.style.cache.FileSystemStyleCache._getEntry(FileSystemStyleCache.java:415)
at
org.apache.myfaces.trinidadinternal.style.cache.FileSystemStyleCache.getStyleSheetURI(FileSystemStyleCache.java:160)
at
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.StyleSheetRenderer.encodeAll(StyleSheetRenderer.java:91)
at
org.apache.myfaces.trinidad.render.CoreRenderer.delegateRenderer(CoreRenderer.java:335)
at
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.HeadRenderer.encodeBegin(HeadRenderer.java:87)
at
org.apache.myfaces.trinidad.render.CoreRenderer.delegateRendererBegin(CoreRenderer.java:356)
at
org.apache.myfaces.trinidadinternal.renderkit.core.xhtml.DocumentRenderer.encodeAll(DocumentRenderer.java:74)
at
org.apache.myfaces.trinidad.render.CoreRenderer.encodeEnd(CoreRenderer.java:224)
at
org.apache.myfaces.trinidad.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:763)
at
org.apache.myfaces.trinidad.component.UIXComponentBase.__encodeRecursive(UIXComponentBase.java:1351)
at
org.apache.myfaces.trinidad.component.UIXComponentBase.encodeAll(UIXComponentBase.java:783)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:246)
at
com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:578)
at
javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:45)
at
org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:176)
at
org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41)
at
org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:140)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:152)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._invokeDoFilter(TrinidadFilterImpl.java:238)
at
org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:195)
at
org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:138)
at
org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
com.satellic.etcng.cas.tariff.utils.utility.ViewExpirationFilter.doFilter(ViewExpirationFilter.java:58)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:595)
When using Firefox with a Konqueror user agent that happens, too. Changing the
user agent to something senseless like ">'>(Mc Login from da o0o black nationz
o0o)'>" it doesn't crash.
I think that there mustn't be exceptions like this when the browser / user
agent is not supported. in case of doubt a message like "your browser is not
supported" would be better than showing this exception.
Felix
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