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https://issues.apache.org/jira/browse/WICKET-1065?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Juergen Donnerstag resolved WICKET-1065.
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Resolution: Fixed
Fix Version/s: 1.3.0-beta5
Assignee: Juergen Donnerstag
thanks
> NullPointer in FileCleaner causes infinite loop
> -----------------------------------------------
>
> Key: WICKET-1065
> URL: https://issues.apache.org/jira/browse/WICKET-1065
> Project: Wicket
> Issue Type: Bug
> Components: wicket
> Affects Versions: 1.3.0-beta4
> Environment: OpenSuse 10.3, Java 1.6.0 update 3, Apache Tomcat
> 5.5.25, Eclipse 3.3.0
> Reporter: Geir Ove Grønmo
> Assignee: Juergen Donnerstag
> Fix For: 1.3.0-beta5
>
>
> While hot deploying a Wicket application from Eclipse to a Tomcat instance
> the "File Reaper" thread seems to go into an infinite loop making the CPU
> running at 100%. From the thread dump it is clear that a NullPointerException
> is being thrown on line 61 in FileCleaner.java. Looking at the source code
> reveals that the ReferenceQueue q member in FileCleaner is null.
> "File Reaper" daemon prio=10 tid=0x08265c00 nid=0x18cf runnable
> [0x9a2d9000..0x9a2d9f30]
> java.lang.Thread.State: RUNNABLE
> at java.lang.Throwable.fillInStackTrace(Native Method)
> - locked <0x701b0000> (a java.lang.NullPointerException)
> at java.lang.Throwable.<init>(Throwable.java:181)
> at java.lang.Exception.<init>(Exception.java:29)
> at java.lang.RuntimeException.<init>(RuntimeException.java:32)
> at java.lang.NullPointerException.<init>(NullPointerException.java:36)
> at org.apache.wicket.util.file.FileCleaner$1.run(FileCleaner.java:61)
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