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https://issues.apache.org/jira/browse/MYFACES-2165?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12702195#action_12702195
]
Leonardo Uribe commented on MYFACES-2165:
-----------------------------------------
Checking the two stack traces, the problem described is the same.
The problem is present on shared 2.0.x, class
org.apache.myfaces.shared.webapp.webxml.WebXml
in JspViewHandler is seen as org.apache.myfaces.shared_impl.webapp.webxml.WebXml
A patch is attached that potentially solve the problem. The problem is simple:
one thread initialize and the other get the mappings, but since the first one
hasn't ended yet, the NullPointerException is thrown.
The problem is present on both shared 2.0.x and 3.0.x, so it potentially
affects 1.2.x branch (note that the code JspViewHandler is different between
1.1.x and 1.2.x)
If there is confirmation of the patch provided solves the problem, I'll commit
the solution on both branches.
> concurrent issue in initializing myfaces 1.1.6
> ----------------------------------------------
>
> Key: MYFACES-2165
> URL: https://issues.apache.org/jira/browse/MYFACES-2165
> Project: MyFaces Core
> Issue Type: Bug
> Affects Versions: 1.1.6
> Environment: tomcat 6.0.18 java 1.6.0_06
> Reporter: xuxiankun
> Priority: Critical
> Attachments: MYFACES-2165.patch
>
>
> after starting tomcat, we will get a error when i visit a faces page. we can
> fix this issue by restarting tomcat. so i think it's concurrent issue.
> java.lang.NullPointerException
> at
> org.apache.myfaces.application.jsp.JspViewHandlerImpl.getServletMapping(JspViewHandlerImpl.java:388)
> at
> org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:222)
> at
> org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
> at
> org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:216)
> at
> org.apache.shale.validator.faces.ValidatorViewHandler.renderView(ValidatorViewHandler.java:130)
> at
> org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
> at
> org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:216)
> at
> org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41)
> at
> org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:146)
> at javax.faces.webapp.FacesServlet.service(FacesServlet.java:147)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> cn.com.brilliance.begen.webapp.servlet.BeGenFilter.doFilter(BeGenFilter.java:56)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
> at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
> 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.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630)
> at
> org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
> at
> org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
> at
> org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
> at
> cn.com.brilliance.begen.webapp.servlet.LoginServlet.doPost(LoginServlet.java:91)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
> at
> org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96)
> at
> org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
> 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:191)
> 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:845)
> 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:619)
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