[jira] [Commented] (GROOVY-5769) NullObject leak

["Jochen Kemnade (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/GROOVY-5769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16015558#comment-16015558 ] 

Jochen Kemnade commented on GROOVY-5769:
----------------------------------------

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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