[jira] [Created] (SLING-4077) ConcurrentModificationException in o.a.sling.installer.core.impl.OsgiInstallerImpl

["Rupert Westenthaler (JIRA)" <ji...@apache.org>]

Rupert Westenthaler created SLING-4077:
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             Summary: ConcurrentModificationException in o.a.sling.installer.core.impl.OsgiInstallerImpl
                 Key: SLING-4077
                 URL: https://issues.apache.org/jira/browse/SLING-4077
             Project: Sling
          Issue Type: Bug
          Components: Installer
    Affects Versions: Installer Core 3.5.4, Installer Core 3.5.0
         Environment: Apache Sling Launcher as used by Apache Stanbol trunk versin using Installer Core 3.5.0.
            Reporter: Rupert Westenthaler


When starting the Apache Stanbol Launchers I do see sometimes CME such as.

{code}
16.10.2014 13:58:41.832 *ERROR* [OsgiInstallerImpl] org.apache.sling.extensions.threaddump.internal.Activator Uncaught exception in Thread Thread[OsgiInstallerImpl,5,main] java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextEntry(HashMap.java:894)
	at java.util.HashMap$KeyIterator.next(HashMap.java:928)
	at org.apache.sling.installer.core.impl.OsgiInstallerImpl.computeTasks(OsgiInstallerImpl.java:586)
	at org.apache.sling.installer.core.impl.OsgiInstallerImpl.run(OsgiInstallerImpl.java:242)
	at java.lang.Thread.run(Thread.java:724)
{code}

Looks like as if iterations over the PersistentResourceList need to get synchronized.

The above exception is reported against version 3.5.0 however as the affected code as not changed in 3.5.4 I expect this version to also be affected by this. Because of that I also added this version to the list of affected.




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