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https://issues.apache.org/jira/browse/GROOVY-5769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16015558#comment-16015558
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Jochen Kemnade commented on GROOVY-5769:
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The script runs fine with 2.4.11.
> NullObject leak
> ---------------
>
> Key: GROOVY-5769
> URL: https://issues.apache.org/jira/browse/GROOVY-5769
> Project: Groovy
> Issue Type: Bug
> Components: Compiler
> Reporter: Jochen Theodorou
>
> {code:Java}
> def b = null
> assert b == null
> def a = null.getClass().newInstance()
> println a.getClass()
> assert a == null
> {code}
> The program shows a leak of NullObject. newInstance will give an instance.
> This is problematic in multiple ways. NullObject is supposed to be almost an
> invisible object, as well as a singleton.
> To make the program above pass we could either fix the compareEquals or we
> fix newInstance() to return null for NullObject. I prefer the later one.
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