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https://issues.apache.org/jira/browse/UIMA-2270?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marshall Schor closed UIMA-2270.
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Resolution: Fixed
> CDE operating very slowly with IBM Java
> ---------------------------------------
>
> Key: UIMA-2270
> URL: https://issues.apache.org/jira/browse/UIMA-2270
> Project: UIMA
> Issue Type: Bug
> Components: Core Java Framework
> Affects Versions: 2.3.1SDK
> Reporter: Marshall Schor
> Assignee: Marshall Schor
> Fix For: 2.4.0SDK
>
>
> Opening a large set of descriptors in the Configuration Descriptor Editor
> (CDE) is very slow using IBM Java. Investigation reveals that some caching
> put in to speed up Java Bean introspection was being done on a
> per-instance-of-a class basis, instead of on a class basis. The IBM Java
> appears to create and link a brand-new method.invoke piece of code for each
> of these instances, which slows down the reflection access approach used by
> XML parsing and descriptor cloning, considerably.
> Sun Java doesn't seem sensitive to this; they must have some different
> approach to reflective method invocation.
> Fix this by changing the way Introspection results are cached in
> MetaDataObject_impl to cache Introspection results just once per Class,
> instead of once per class instance. This speeds up things by 3x overall (I
> measured it) in time-to-load a large descriptor into the CDE, and
> more-or-less matches what Sun Java achieves.
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