[jira] [Closed] (DERBY-5830) Make DoubleProperties.propertyNames() thread-safe

["Knut Anders Hatlen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-5830?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Knut Anders Hatlen closed DERBY-5830.
-------------------------------------

          Resolution: Fixed
       Fix Version/s: 10.10.0.0
                      10.9.1.1
                      10.8.2.3
    Issue & fix info:   (was: Patch Available)

Backported to 10.9 (revision 1359064) and 10.8 (revision 1359065). Closing the issue.
                
> 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
>             Fix For: 10.8.2.3, 10.9.1.1, 10.10.0.0
>
>         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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