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https://issues.apache.org/jira/browse/GROOVY-10918?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17684323#comment-17684323
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Andriy Rysin commented on GROOVY-10918:
---------------------------------------
Here's another example: TestOOMIcj.java - uses internal class.
Works:
{code:java}
JAVA_TOOL_OPTIONS="-Xmx600M" java TestOOMIcj.java{code}
Throws OOM:
{code:java}
cp TestOOMIcj.java TestOOMIcj.groovy
JAVA_TOOL_OPTIONS="-Xmx600M" groovy TestOOMIcj.groovy
{code}
> Local variable values are not discarded if closures used
> --------------------------------------------------------
>
> Key: GROOVY-10918
> URL: https://issues.apache.org/jira/browse/GROOVY-10918
> Project: Groovy
> Issue Type: Bug
> Affects Versions: 4.0.8
> Reporter: Andriy Rysin
> Priority: Major
> Attachments: TestOOM.groovy, TestOOMIcj.java, TestOOMJ.java,
> groovy_oom.png
>
>
> When I run the code below with 3 statements with closures inside the method
> the local var (parameter) values (all 4 of them) are staying in memory.
> I don't see the same problem if I run corresponding Java code with lambdas.
> Run TestOOM.groovy with
> -Xmx600M -XX:+HeapDumpOnOutOfMemoryError
> Notice groovy fails:
> Y
> Z
> java.lang.OutOfMemoryError: Java heap space
> Dumping heap to java_pid147612.hprof ...
> Heap dump file created [497819587 bytes in 0.136 secs]
> Caught: java.lang.OutOfMemoryError: Java heap space
> java.lang.OutOfMemoryError: Java heap space
> at test.TestOOM.test(TestOOM.groovy:31)
> at test.TestOOM.run(TestOOM.groovy:41)
> But Java version does not.
> It looks like all the values of s are still in memory (see screenshot), even
> though previous values should be discarded.
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