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https://issues.apache.org/jira/browse/WW-3691?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13158307#comment-13158307
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Falko Modler commented on WW-3691:
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The implementation of my idea (see previous comment) was successful and I can
provide a patch file for that by wednesday at the latest.
Test was ok in the demo app. I will provide a separate patch file for this.
I have yet to figure out, how to test it in the respective junit test. Are
there any examples that test injection functionality?
I also want to test it in conjunction with spring (inject spring managed thread
pool).
Sorry for the delay!
> BackgroundProcess should use a java.util.concurrent.Executor alternatively to
> spawning a new thread
> ---------------------------------------------------------------------------------------------------
>
> Key: WW-3691
> URL: https://issues.apache.org/jira/browse/WW-3691
> Project: Struts 2
> Issue Type: Improvement
> Components: Core Interceptors
> Affects Versions: 2.2.3.1
> Reporter: Falko Modler
> Attachments: WW-3691.patch
>
>
> Every new instance of org.apache.struts2.interceptor.BackgroundProcess spawns
> a new Thread (see constructor), no thread pooling is used.
> Besides problems in environments where some container might need to manage
> the creation of threads, this issue also prevents certain
> performance/efficiency optimizations via ThreadLocal from taking full effect.
> E.g.: We use ThreadLocals for Random and SimpleDateFormat and those thread
> local instances "are lost" when a new Thread is created.
> Therefore BackgroundProcess should be given a new constructor that takes a
> java.util.concurrent.Executor instance that is used to execute the Runnable.
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