Russell Morrisey created GROOVY-8106:
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Summary: Memory leak with expando metaclass in groovy
Key: GROOVY-8106
URL: https://issues.apache.org/jira/browse/GROOVY-8106
Project: Groovy
Issue Type: Bug
Affects Versions: 2.4.9, 2.4.4
Environment: Grails 2.5.1 (with updated Groovy version)
Win 7
Java HotSpot 64 v1.8.0_66-b17
Reporter: Russell Morrisey
Attachments: BuildConfig.groovy, groovy mem leak.png
I am seeing a memory leak in my Grails app, which uses a lot of expando
metaclass properties.
>From looking at the GC path, I believe this leak comes from the Groovy
>framework. I have attached a screenshot from jvisualvm which shows a path to
>the GC root. The path doesn't appear to contain any weak/soft reference types.
Please let me know if you think my analysis is mistaken. I don't have a strong
understanding of Groovy framework internals.
GC via JMX does not remove these objects.
Updating my BuildConfig to use Groovy 2.4.9 (with forked compile) did not fix
the issue.
(Note: Some of the dependencies in the attached BuildConfig are proprietary and
not available from the grails plugin repo.)
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