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https://issues.apache.org/jira/browse/COLLECTIONS-516?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Neidhart resolved COLLECTIONS-516.
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Resolution: Fixed
Fix Version/s: 4.1
Added javadoc clarification in r1596050.
Thanks for the report!
> NullPointerException in MapUtils.toProperties
> ---------------------------------------------
>
> Key: COLLECTIONS-516
> URL: https://issues.apache.org/jira/browse/COLLECTIONS-516
> Project: Commons Collections
> Issue Type: Bug
> Components: Collection
> Affects Versions: 4.0
> Environment: Mac OS 10.9, Java 6
> Reporter: Cyrille Artho
> Fix For: 4.1
>
> Attachments: Report4.java
>
>
> calling MapUtils.toProperties with a map having null entries results in a
> NullPointerException. In this case the Map has only entry <null, null>.
> However, javadoc states "A null input will return an empty
> properties object." so (1) this should be clarified as it would
> only apply to the map reference itself, not its contents, or (2)
> an empty property object should be generated for null entries in
> the map as well.
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