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From Mark Thomas <ma...@apache.org>
Subject Re: NPE while undeploying webapp on Tomcat 5.5.12
Date Sat, 12 Nov 2005 23:24:14 GMT
Stanislav Mironov wrote:
<snip>
>>>09.11.2005 10:47:12
>>>org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor
>>>processChildren
>>>SEVERE: Exception invoking periodic operation:
>>>java.lang.NullPointerException
>>>      at org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:883)
>>>
>>>What is the reason - bug in tomcat?
>>
>>Maybe, maybe not. What are the steps to reproduce?
> 
> 
> Steps to reproduce are here:
> http://issues.apache.org/bugzilla/show_bug.cgi?id=37425
> (JAR-locking related issue).
> The issue was marked INVALID, but I see no excuses for Tomcat to throw
> such meaningless exception without explanations what exactly has
> happened.

I have followed your steps and do not see any error. Can you provide 
me with the smallest possible webapp that demonstrates this issue? 
Without this, there isn't much more I can do. You will need to mail it 
to me directly (or attach it to the bugzilla issue) as the mailing 
lists block most (all?) attachments.

Mark


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