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https://issues.apache.org/jira/browse/DERBY-5830?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Knut Anders Hatlen updated DERBY-5830:
--------------------------------------

    Issue & fix info: Patch Available
    
> Make DoubleProperties.propertyNames() thread-safe
> -------------------------------------------------
>
>                 Key: DERBY-5830
>                 URL: https://issues.apache.org/jira/browse/DERBY-5830
>             Project: Derby
>          Issue Type: Bug
>          Components: Services
>    Affects Versions: 10.9.1.0
>            Reporter: Knut Anders Hatlen
>            Assignee: Knut Anders Hatlen
>         Attachments: keys-only-v2.diff
>
>
> As discussed in DERBY-4269, DoubleProperties.propertyNames() may throw a 
> NullPointerException if properties are removed by another thread while the 
> method is executing. Since DoubleProperties is a sub-class of, and used as a 
> drop-in replacement for, java.util.Properties, it should be thread-safe just 
> like the propertyNames() method in the parent class.

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