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https://issues.apache.org/jira/browse/UIMA-6385?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on UIMA-6385 started by Richard Eckart de Castilho.
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> Potential resource key clash in environments with multiple classloaders
> -----------------------------------------------------------------------
>
> Key: UIMA-6385
> URL: https://issues.apache.org/jira/browse/UIMA-6385
> Project: UIMA
> Issue Type: Bug
> Components: uimaFIT
> Reporter: Richard Eckart de Castilho
> Assignee: Richard Eckart de Castilho
> Priority: Major
> Fix For: 3.2.1uimaFIT
>
>
> The {{ExternalResourceFactory}} internally generates a unique key for each
> resource using the method
> {{ExternalResourceFactory.uniqueResourceKey(String)}}. This method internally
> uses a static thread-safe counter which is increased for each resource.
> However, if we are in an environment where multiple instances of uimaFIT
> exists, e.g. within PEARs or OSGI environments, then it is possible that the
> same unique key is produced by two uimaFIT instances. It would also be
> possible that these keys both end up in the same resource manager and then
> the resources would override each other.
> A solution for this could be to also include some unique uimaFIT instance ID
> in the unique key, e.g. the {{System.identityHashCode(DISAMBIGUATOR)}}.
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