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https://issues.apache.org/jira/browse/WW-4477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14367311#comment-14367311
]
Lukasz Lenart commented on WW-4477:
-----------------------------------
Define repository as follow
{code:xml}
<repositories>
<repository>
<id>apache-snapshots</id>
<url>https://repository.apache.org/content/groups/snapshots/</url>
<layout>default</layout>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
{code}
> As 2.3.20 Stacktraces are gone??
> --------------------------------
>
> Key: WW-4477
> URL: https://issues.apache.org/jira/browse/WW-4477
> Project: Struts 2
> Issue Type: Bug
> Components: Core Interceptors
> Affects Versions: 2.3.20
> Environment: Tomcat 8.0
> Log4j2 2.2
> Hibernate 4
> Reporter: Mathieu Genest
> Fix For: 2.3.22
>
>
> I upgraded from 2.3.16.3 and as I idid, I lost the ability to see Stacktraces
> with Struts conf to act in Dev Mode. I am now missing this very helpful
> page : ex :
> Struts Problem Report
> Struts has detected an unhandled exception:
> Messages:
> File:
> groupelti/lims/ui/production/echantillon/ReceptionnerBaseAction.java
> Line number:
> 435
> Stacktraces
> java.lang.NullPointerException
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