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Posted to user@lenya.apache.org by Emmanouil Batsis <ma...@geekologue.com> on 2005/11/01 14:05:42 UTC
[1.4] Policy URL and thread race or something?
Using the 1.4 trunk and JBoss 4.0.3: This exception occurs from time to time
in different parts of the application. It appears to be a "thread race" issue
because
- it does not occur always
- it does not occur in the same place
- it can dissappear after the page is refreshed a couple of times
Any ideas much appreciated. Below is the server log after the
http://localhost:8080/lenya/default/admin/index.html url is accessed.
13:30:21,628 INFO [sitemap] Redirecting to 'null/default/admin/index.html'
13:30:21,628 INFO [access] 'default/admin/index.html' Processed by
Apache Cocoon 2.1.8-rc1 in 616 milliseconds.
13:30:21,643 ERROR [handled-errors] java.lang.NullPointerException
org.apache.lenya.ac.AccessControlException: java.lang.NullPointerException
at
org.apache.lenya.cms.ac.DocumentPolicyManagerWrapper.getPolicyURL(DocumentPolicyManagerWrapper.java:99)
at
org.apache.lenya.cms.ac.DocumentPolicyManagerWrapper.getPolicy(DocumentPolicyManagerWrapper.java:212)
at
org.apache.lenya.ac.impl.PolicyAuthorizer.authorizePolicy(PolicyAuthorizer.java:109)
at
org.apache.lenya.ac.impl.PolicyAuthorizer.authorize(PolicyAuthorizer.java:170)
at
org.apache.lenya.ac.impl.PolicyAuthorizer.authorize(PolicyAuthorizer.java:92)
at
org.apache.lenya.ac.impl.DefaultAccessController.authorize(DefaultAccessController.java:116)
at
org.apache.lenya.ac.impl.BypassableAccessController.authorize(BypassableAccessController.java:155)
at
org.apache.lenya.cms.cocoon.acting.DelegatingAuthorizerAction.doAct(DelegatingAuthorizerAction.java:68)
at
org.apache.lenya.cms.cocoon.acting.AccessControlAction.act(AccessControlAction.java:86)
at
org.apache.lenya.cms.cocoon.acting.DelegatingAuthorizerAction.act(DelegatingAuthorizerAction.java:50)
at
org.apache.cocoon.components.treeprocessor.sitemap.ActTypeNode.invoke(ActTypeNode.java:124)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:68)
at
org.apache.cocoon.components.treeprocessor.sitemap.SelectNode.invoke(SelectNode.java:102)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:46)
at
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:130)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:68)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:142)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:68)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:92)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:234)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:176)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:248)
at org.apache.cocoon.Cocoon.process(Cocoon.java:679)
at
org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1154)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at
org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:159)
at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at
org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:534)
Caused by: java.lang.NullPointerException
at
org.apache.lenya.cms.repository.RepositoryUtil.getSession(RepositoryUtil.java:30)
at
org.apache.lenya.cms.ac.DocumentPolicyManagerWrapper.getPolicyURL(DocumentPolicyManagerWrapper.java:84)
... 43 more
13:30:21,728 INFO [sitemap] Processing handle-errors at
<map:handle-errors> -
file:/opt/jboss-4.0.3/server/default/./deploy/lenya.war/sitemap.xmap:547:26
13:30:22,190 INFO [access]
'default/admin/null/default/admin/index.html' Processed by Apache Cocoon
2.1.8-rc1 in 559 milliseconds.
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Re: [1.4] Policy URL and thread race or something?
Posted by Felix Röthenbacher <fe...@wyona.com>.
Hi Emmanouil
can you attach the full stack-trace of the exception you get to
http://issues.apache.org/bugzilla/show_bug.cgi?id=37224
Jetty and Tomcat used to have the same codebase so chances are high
that both implementations show this "phenomena".
Thanks
Felix
Emmanouil Batsis wrote:
> Hi Felix,
>
> Thanks for your reply.
>
> On Tuesday 01 November 2005 16:06, Felix Röthenbacher wrote:
>
>>see also: http://issues.apache.org/bugzilla/show_bug.cgi?id=37224
>>
>>The problem seems to have its origin in Jetty which IIRC is used
>>together with JBoss.
>
>
> The problem, after seeing the attachement, is indeed the same. However, the
> problem does not come from Jetty (JBoss 4.0.3 uses Tomcat). I've inspected
> both traces and they all come down to
>
> org.apache.lenya.cms.ac.DocumentPolicyManagerWrapper.getPolicyURL(DocumentPolicyManagerWrapper.java:84)
>
> DocumentPolicyManagerWrapper line 84 reads
>
> Session session = RepositoryUtil.getSession(this.request, getLogger());
>
> My understanding is that RepositoryUtil is supposed to return a non-null
> session object so the problem is there right?
>
> Manos
>
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> To unsubscribe, e-mail: user-unsubscribe@lenya.apache.org
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>
>
--
Felix Röthenbacher felix.roethenbacher@wyona.com
Wyona Inc. - Open Source Content Management - Apache Lenya
http://www.wyona.com http://lenya.apache.org
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Re: [1.4] Policy URL and thread race or something?
Posted by Emmanouil Batsis <ma...@geekologue.com>.
Hi Felix,
Thanks for your reply.
On Tuesday 01 November 2005 16:06, Felix Röthenbacher wrote:
> see also: http://issues.apache.org/bugzilla/show_bug.cgi?id=37224
>
> The problem seems to have its origin in Jetty which IIRC is used
> together with JBoss.
The problem, after seeing the attachement, is indeed the same. However, the
problem does not come from Jetty (JBoss 4.0.3 uses Tomcat). I've inspected
both traces and they all come down to
org.apache.lenya.cms.ac.DocumentPolicyManagerWrapper.getPolicyURL(DocumentPolicyManagerWrapper.java:84)
DocumentPolicyManagerWrapper line 84 reads
Session session = RepositoryUtil.getSession(this.request, getLogger());
My understanding is that RepositoryUtil is supposed to return a non-null
session object so the problem is there right?
Manos
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Re: [1.4] Policy URL and thread race or something?
Posted by Felix Röthenbacher <fe...@wyona.com>.
Hi Emmanouil
see also: http://issues.apache.org/bugzilla/show_bug.cgi?id=37224
The problem seems to have its origin in Jetty which IIRC is used
together with JBoss.
- Felix
Emmanouil Batsis wrote:
> Using the 1.4 trunk and JBoss 4.0.3: This exception occurs from time to time
> in different parts of the application. It appears to be a "thread race" issue
> because
>
> - it does not occur always
> - it does not occur in the same place
> - it can dissappear after the page is refreshed a couple of times
>
> Any ideas much appreciated. Below is the server log after the
> http://localhost:8080/lenya/default/admin/index.html url is accessed.
>
> 13:30:21,628 INFO [sitemap] Redirecting to 'null/default/admin/index.html'
> 13:30:21,628 INFO [access] 'default/admin/index.html' Processed by
> Apache Cocoon 2.1.8-rc1 in 616 milliseconds.
> 13:30:21,643 ERROR [handled-errors] java.lang.NullPointerException
> org.apache.lenya.ac.AccessControlException: java.lang.NullPointerException
> at
> org.apache.lenya.cms.ac.DocumentPolicyManagerWrapper.getPolicyURL(DocumentPolicyManagerWrapper.java:99)
> at
> org.apache.lenya.cms.ac.DocumentPolicyManagerWrapper.getPolicy(DocumentPolicyManagerWrapper.java:212)
> at
> org.apache.lenya.ac.impl.PolicyAuthorizer.authorizePolicy(PolicyAuthorizer.java:109)
> at
> org.apache.lenya.ac.impl.PolicyAuthorizer.authorize(PolicyAuthorizer.java:170)
> at
> org.apache.lenya.ac.impl.PolicyAuthorizer.authorize(PolicyAuthorizer.java:92)
> at
> org.apache.lenya.ac.impl.DefaultAccessController.authorize(DefaultAccessController.java:116)
> at
> org.apache.lenya.ac.impl.BypassableAccessController.authorize(BypassableAccessController.java:155)
> at
> org.apache.lenya.cms.cocoon.acting.DelegatingAuthorizerAction.doAct(DelegatingAuthorizerAction.java:68)
> at
> org.apache.lenya.cms.cocoon.acting.AccessControlAction.act(AccessControlAction.java:86)
> at
> org.apache.lenya.cms.cocoon.acting.DelegatingAuthorizerAction.act(DelegatingAuthorizerAction.java:50)
> at
> org.apache.cocoon.components.treeprocessor.sitemap.ActTypeNode.invoke(ActTypeNode.java:124)
> at
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:68)
> at
> org.apache.cocoon.components.treeprocessor.sitemap.SelectNode.invoke(SelectNode.java:102)
> at
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:46)
> at
> org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:130)
> at
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:68)
> at
> org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:142)
> at
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:68)
> at
> org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:92)
> at
> org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:234)
> at
> org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:176)
> at
> org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:248)
> at org.apache.cocoon.Cocoon.process(Cocoon.java:679)
> at
> org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1154)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
> at
> org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
> at
> org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
> at
> org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:159)
> at
> org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
> at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
> at
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
> at
> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
> at
> org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
> at java.lang.Thread.run(Thread.java:534)
> Caused by: java.lang.NullPointerException
> at
> org.apache.lenya.cms.repository.RepositoryUtil.getSession(RepositoryUtil.java:30)
> at
> org.apache.lenya.cms.ac.DocumentPolicyManagerWrapper.getPolicyURL(DocumentPolicyManagerWrapper.java:84)
> ... 43 more
> 13:30:21,728 INFO [sitemap] Processing handle-errors at
> <map:handle-errors> -
> file:/opt/jboss-4.0.3/server/default/./deploy/lenya.war/sitemap.xmap:547:26
> 13:30:22,190 INFO [access]
> 'default/admin/null/default/admin/index.html' Processed by Apache Cocoon
> 2.1.8-rc1 in 559 milliseconds.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@lenya.apache.org
> For additional commands, e-mail: user-help@lenya.apache.org
>
>
--
Felix Röthenbacher felix.roethenbacher@wyona.com
Wyona Inc. - Open Source Content Management - Apache Lenya
http://www.wyona.com http://lenya.apache.org
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