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Marshall Schor edited comment on UIMA-6058 at 6/14/19 6:42 PM: --------------------------------------------------------------- Rather than work on the mMetaDataList, perhaps a better thing is to let the garbage collector collect the entire CasManager_impl. The ResourceManager_impl has a reference to a CasManager_impl. When the ResourceManger destroy() method is called, it doesn't do anything to the referenced CasManager, because that instance could be shared with other (non-destroyed) ResourceManagers. But, if you know (in your particular application instance) when calling a ResourceManager instance's destroy(), that the referenced CasManager is not shared, and won't be used again, you could null out the reference: e.g. my_resource_mgr.setCasManager(null); This ought to allow the garbage collector to collect the CasManager (and therefore, it's mMetaDataList). Would this method work for your use case? was (Author: schor): The ResourceManager_impl has a reference to a CasManager_impl. When the ResourceManger destroy() method is called, it doesn't do anything to the referenced CasManager, because that instance could be shared with other (non-destroyed) ResourceManagers. If, in your application, you know when calling a ResourceManager instance's destroy(), that the referenced CasManager is not shared, and won't be used again, you could null out the reference: e.g. my_resource_mgr.setCasManager(null); This ought to allow the garbage collector to collect the CasManager (and therefore, it's mMetaDataList). Would this method work for your use case? > Pear destroy does not destroy the resourceManagers > -------------------------------------------------- > > Key: UIMA-6058 > URL: https://issues.apache.org/jira/browse/UIMA-6058 > Project: UIMA > Issue Type: Bug > Reporter: Matthias Koch > Priority: Major > Attachments: Screenshot_20190614_095220.png, UIMA-6058.diff > > > the pear wrapper is caching resourceManagers which are not getting destroyed > on destroy of the pear wrapper. -- This message was sent by Atlassian JIRA (v7.6.3#76005)