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https://issues.apache.org/jira/browse/ORCHESTRA-68?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Leonardo Uribe resolved ORCHESTRA-68.
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Resolution: Fixed
Assignee: Leonardo Uribe
Fix Version/s: 1.6
I agree the fix has sense. Thanks to Leo Büttiker for provide this patch.
> RequestParameterProviderManager.encodeAndAttachParameters might throw
> NullPointerException
> -------------------------------------------------------------------------------------------
>
> Key: ORCHESTRA-68
> URL: https://issues.apache.org/jira/browse/ORCHESTRA-68
> Project: MyFaces Orchestra
> Issue Type: Bug
> Components: RequestParameterProvider
> Affects Versions: 1.5
> Reporter: Leo Büttiker
> Assignee: Leonardo Uribe
> Fix For: 1.6
>
>
> Under certain circumstances which I unfortunately can not reproduce all the
> time (during a heavy load selenium test with ajax) the method
> RequestParameterProviderManager.encodeAndAttachParameters throws an expection
> because a provider in the list providers is null.
> The assumption is that due to multi-threading the array list might get
> corrupt under certain conditions. When I replace the list with a synchronized
> list the error does not occur. Fixing the bug can therefor achieved by
> replacing getProviders with:
> {code}
> protected List getProviders() {
> if (providers == null) {
> providers = Collections.synchronizedList(new ArrayList());
> }
> return providers;
> }
> {code}
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