[jbossseam-issues] [JBoss JIRA] Reopened: (JBSEAM-3845) NullPointerException in org.jboss.seam.exception.Exceptions.parse
Ian Springer (JIRA)
jira-events at lists.jboss.org
Tue Apr 7 16:54:22 EDT 2009
[ https://jira.jboss.org/jira/browse/JBSEAM-3845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ian Springer reopened JBSEAM-3845:
----------------------------------
I was seeing this also (with Seam 2.1.0.SP1). In my case, it was caused by the following element in my exceptions.xml:
<exception class="javax.persistence.PersistenceException">
<render>PersistenceException was thrown #{messages['exception.page']}</render>
<end-conversation/>
</exception>
It looks like this was causing Exceptions.createHandler() to return null, since the element doesn't contain either a 'redirect' or an 'http-error' child element. If 'render' is an invalid alternative, then Seam should log an error to inform the user the syntax of their exceptions.xml is not valid. Based on some quick Googling, it looks like a 'render' child element used to be supported but support for it was removed somewhere in the 2006-2007 time frame.
> NullPointerException in org.jboss.seam.exception.Exceptions.parse
> -----------------------------------------------------------------
>
> Key: JBSEAM-3845
> URL: https://jira.jboss.org/jira/browse/JBSEAM-3845
> Project: Seam
> Issue Type: Bug
> Affects Versions: 2.1.0.SP1
> Environment: JBoss EAP 4.3.0 default, JSFUnit, run using Cactus ServletTestRunner
> Reporter: Ondrej Žižka
> Assignee: Norman Richards
> Fix For: 2.1.2.CR1
>
> Attachments: SeamNPE.txt
>
>
> Seam throws a NPE when I run a JSFUnit test case. The test may be fault, but at least the NPE should be handled.
> Full stack trace:
> -------------------------------------------------------
> 15:11:11,933 ERROR [BaseXMLFilter] Exception in the filter chain
> javax.servlet.ServletException: org.jboss.seam.InstantiationException: Could not instantiate Seam component: org.jboss.seam.exception.exceptions
> at org.jboss.seam.web.ExceptionFilter.endWebRequestAfterException(ExceptionFilter.java:126)
> at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:70)
> at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
> at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
> at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
> at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:177)
> at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:267)
> at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:380)
> at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:507)
> at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)
> at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
> at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
> at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
> at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
> 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:230)
> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:173)
> at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
> at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
> at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
> 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)
> Caused by: org.jboss.seam.InstantiationException: Could not instantiate Seam component: org.jboss.seam.exception.exceptions
> at org.jboss.seam.Component.newInstance(Component.java:2096)
> at org.jboss.seam.Component.getInstance(Component.java:1978)
> at org.jboss.seam.Component.getInstance(Component.java:1957)
> at org.jboss.seam.Component.getInstance(Component.java:1951)
> at org.jboss.seam.Component.getInstance(Component.java:1924)
> at org.jboss.seam.Component.getInstance(Component.java:1919)
> at org.jboss.seam.exception.Exceptions.instance(Exceptions.java:256)
> at org.jboss.seam.web.ExceptionFilter.endWebRequestAfterException(ExceptionFilter.java:114)
> ... 31 more
> Caused by: java.lang.NullPointerException
> at org.jboss.seam.exception.Exceptions.parse(Exceptions.java:195)
> at org.jboss.seam.exception.Exceptions.initialize(Exceptions.java:119)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
> at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:138)
> at org.jboss.seam.Component.callComponentMethod(Component.java:2201)
> at org.jboss.seam.Component.callCreateMethod(Component.java:2124)
> at org.jboss.seam.Component.newInstance(Component.java:2084)
> ... 38 more
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