Hi,
we get sometimes a ‘Text must not be null’ exception from the
HtmlResponseWriterImpl.
We see the exception randomly. We now the xhtml file that triggers the error
including the parameter the user has entered on the page.
But we are not able to reproduce it on the server (you now – it works on my
machine).
Has anybody an idea? What is the reason for the error? How could we trace the
error based on the stacktrace?
Thanks Georg
We use tomcat7 with myfaces 2.1.10 and tomahawk20 1.1.14.
Here is the complete stacktrace:
java.lang.NullPointerException: 'Text must not be null.'
java.lang.NullPointerException: Text must not be null.
at
org.apache.myfaces.shared.renderkit.html.HtmlResponseWriterImpl.writeText(HtmlResponseWriterImpl.java:822)
at
org.apache.myfaces.shared.renderkit.html.HtmlRendererUtils.renderSelectOptions(HtmlRendererUtils.java:654)
at
org.apache.myfaces.shared.renderkit.html.HtmlSelectableRendererBase.internalRenderSelect(HtmlSelectableRendererBase.java:169)
at
org.apache.myfaces.shared.renderkit.html.HtmlMenuRendererBase.renderMenu(HtmlMenuRendererBase.java:91)
at
org.apache.myfaces.shared.renderkit.html.HtmlMenuRendererBase.encodeEnd(HtmlMenuRendererBase.java:76)
at
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:665)
at
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:545)
at
org.apache.myfaces.shared.renderkit.RendererUtils.renderChildren(RendererUtils.java:693)
at
org.apache.myfaces.shared.renderkit.html.HtmlGroupRendererBase.encodeEnd(HtmlGroupRendererBase.java:115)
at
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:665)
at
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:545)
at
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:541)
at
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:541)
at
org.apache.myfaces.renderkit.html.HtmlCompositeComponentRenderer.encodeEnd(HtmlCompositeComponentRenderer.java:71)
at
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:665)
at
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:545)
at
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:541)
at
org.apache.myfaces.renderkit.html.HtmlCompositeComponentRenderer.encodeEnd(HtmlCompositeComponentRenderer.java:71)
at
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:665)
at
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:545)
at
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:541)
at
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:541)
at
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:541)
at
org.apache.myfaces.renderkit.html.HtmlCompositeComponentRenderer.encodeEnd(HtmlCompositeComponentRenderer.java:71)
at
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:665)
at
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:545)
at
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:541)
at
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:541)
at
org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.renderView(FaceletViewDeclarationLanguage.java:1981)
at
org.apache.myfaces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:285)
at
com.ocpsoft.pretty.faces.application.PrettyViewHandler.renderView(PrettyViewHandler.java:163)
at
javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:59)
at
org.apache.myfaces.tomahawk.application.ResourceViewHandlerWrapper.renderView(ResourceViewHandlerWrapper.java:169)
at
org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:116)
at
org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:241)
at
javax.faces.webapp.FacesServlet.service(FacesServlet.java:199)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
com.tagwerk.webapp.utils.SessionTimeoutFilter.doFilter(SessionTimeoutFilter.java:110)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
com.tagwerk.general.web.HibernateSessionConversationFilter.doFilter(HibernateSessionConversationFilter.java:92)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:357)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
com.ocpsoft.pretty.PrettyFilter.doFilter(PrettyFilter.java:145)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
com.ocpsoft.pretty.PrettyFilter.doFilter(PrettyFilter.java:145)
at
com.tagwerk.webapp.utils.AuthPrettyFacesFilter.doFilter(AuthPrettyFacesFilter.java:92)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487)
at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
at
com.ocpsoft.pretty.PrettyFilter.doFilter(PrettyFilter.java:137)
at
com.tagwerk.webapp.utils.AuthPrettyFacesFilter.doFilter(AuthPrettyFacesFilter.java:92)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
com.tagwerk.webapp.utils.CustomCharacterEncodingFilter.doFilter(CustomCharacterEncodingFilter.java:42)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
