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https://issues.apache.org/jira/browse/LOG4J2-248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13653388#comment-13653388
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Tim Tucker commented on LOG4J2-248:
-----------------------------------
The warning is actually one of the few in their J2EE ruleset:
http://marc.theaimsgroup.com/?l=struts-user&m=103739031630236&w=4
Interestingly enough, I came across some mention of both approaches in old
posts on the Stuts mailing lists as well:
http://mail-archives.apache.org/mod_mbox/struts-user/200307.mbox/%[email protected]%3E
(In their case, it looks like they were using
Thread.currentThread().getContextClassLoader() then falling back to the
classloader for the class if that returned null).
> Log4jContextListener: Use Thread instead of Class for fallback classloader
> --------------------------------------------------------------------------
>
> Key: LOG4J2-248
> URL: https://issues.apache.org/jira/browse/LOG4J2-248
> Project: Log4j 2
> Issue Type: Improvement
> Affects Versions: 2.0-beta5
> Reporter: Tim Tucker
> Priority: Minor
>
> I was experimenting with creating my own context listener based on
> Log4jContextListener and noticed that the call in getClassLoader to get the
> class's classloader was triggering a PMD warning.
> The rule's notes indicate that Thread.currentThread().getContextClassLoader()
> might return more reliable results than Object.class.getClassLoader().
> The code in question is as follows:
> try {
> // if container is Servlet 3.0, use its getClassLoader method
> return
> (ClassLoader)context.getClass().getMethod("getClassLoader").invoke(context);
> } catch (Exception ignore) {
> // otherwise, use this class's class loader
> return Log4jContextListener.class.getClassLoader();
> }
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