[gatein-issues] [JBoss JIRA] (GTNPORTAL-3475) NPE in LinkedList$ListItr.next when iterating over UIGroupMembershipSelect.getListMemberhip()
Peter Palaga (JIRA)
issues at jboss.org
Tue May 27 08:39:58 EDT 2014
[ https://issues.jboss.org/browse/GTNPORTAL-3475?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Peter Palaga updated GTNPORTAL-3475:
------------------------------------
Status: Resolved (was: Pull Request Sent)
Assignee: Peter Palaga
Fix Version/s: 3.8.2.Final
3.9.0.Final
Resolution: Done
> NPE in LinkedList$ListItr.next when iterating over UIGroupMembershipSelect.getListMemberhip()
> ---------------------------------------------------------------------------------------------
>
> Key: GTNPORTAL-3475
> URL: https://issues.jboss.org/browse/GTNPORTAL-3475
> Project: GateIn Portal
> Issue Type: Bug
> Security Level: Public(Everyone can see)
> Reporter: Peter Palaga
> Assignee: Peter Palaga
> Fix For: 3.8.2.Final, 3.9.0.Final
>
> Attachments: GTNPORTAL-3475.log
>
>
> Looks like a concurrent modification of the {{LinkedList}} refered to by {{UIGroupMembershipSelect.listMemberhip}}, because:
> i. It is not always reproducible, the NPE occurs roughly once per 10 attempts.
> ii. It happens on line {{next = next.next}} of the JRE's {{LinkedList.ListItr}} where it is hard to thing of anything else than concurrent modification as a cause.
> Steps to reproduce:
> (1) Start clean Portal instance for the first time
> (2) Go to Application Registry
> (3) Import Applications
> Not OK: There is an NPE logged (the whole log is attached):
> {code:none}
> Caused by: java.lang.NullPointerException
> at java.util.LinkedList$ListItr.next(LinkedList.java:891) [rt.jar:1.7.0_55]
> at UIGroupMembershipSelector.run(UIGroupMembershipSelector.gtmpl:20) at org.exoplatform.groovyscript.GroovyScript.render(GroovyScript.java:99) [exo.portal.component.scripting-3.8.0.Beta02-SNAPSHOT.jar:3.8.0.Beta02-SNAPSHOT]
> at org.exoplatform.groovyscript.GroovyTemplate.render(GroovyTemplate.java:115) [exo.portal.component.scripting-3.8.0.Beta02-SNAPSHOT.jar:3.8.0.Beta02-SNAPSHOT]
> {code}
> Expected: No NPE
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