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https://issues.apache.org/jira/browse/OPENJPA-2672?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15641673#comment-15641673
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Mark Struberg commented on OPENJPA-2672:
----------------------------------------
Not quite sure if it really has to do with this change, but since then our
build is broken on Linux.
https://builds.apache.org/job/OpenJPA-2.4.x/8/
It builds fine on OSX though. Will try to reproduce on my local Fedora
workstation.
> ConfigurationImpl.loadGlobals() has java.util.ConcurrentModificationException
> vulnerability
> -------------------------------------------------------------------------------------------
>
> Key: OPENJPA-2672
> URL: https://issues.apache.org/jira/browse/OPENJPA-2672
> Project: OpenJPA
> Issue Type: Bug
> Components: lib
> Affects Versions: 2.2.3, 2.4.1
> Reporter: Jody Grassel
> Assignee: Jody Grassel
> Fix For: 2.2.3, 2.4.2, 3.0.0
>
> Attachments: OPENJPA_22X-2672.patch
>
>
> The following block in the loadGlobals() method:
> // let system properties override other globals
> try {
> fromProperties(new HashMap(
> AccessController.doPrivileged(
> J2DoPrivHelper.getPropertiesAction())));
> retrieves a Properties object from System.getProperties(), which is passed to
> HashMap's ctor. The ctor interacts with an enumerator associated with the
> Properties object to populate the new HashMap instance. However, if another
> thread mutates the JVM's System Properties, it can result in a
> ConcurrentModificationException as observed below:
> Caused by: java.util.ConcurrentModificationException
> at java.util.Hashtable$Enumerator.next(Hashtable.java:1256)
> at java.util.HashMap.putAllForCreate(HashMap.java:566)
> at java.util.HashMap.<init>(HashMap.java:310)
> at
> org.apache.openjpa.lib.conf.ConfigurationImpl.loadGlobals(ConfigurationImpl.java:189)
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