[jira] [Resolved] (OAK-1524) NPE in TarMK flush thread

["Jukka Zitting (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/OAK-1524?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jukka Zitting resolved OAK-1524.
--------------------------------

    Resolution: Fixed

Fixed as suggested in revision 1576452.

> NPE in TarMK flush thread
> -------------------------
>
>                 Key: OAK-1524
>                 URL: https://issues.apache.org/jira/browse/OAK-1524
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: core
>            Reporter: Chetan Mehrotra
>            Assignee: Jukka Zitting
>            Priority: Minor
>             Fix For: 0.19
>
>
> Following exception is seen at times with SegmentStore
> {noformat}
> unning org.apache.jackrabbit.oak.jcr.tck.NodetypeIT
> Exception in thread "TarMK flush thread: target/tar.1303694685400657" java.lang.NullPointerException
>         at org.apache.jackrabbit.oak.plugins.segment.file.FileStore.flush(FileStore.java:237)
>         at org.apache.jackrabbit.oak.plugins.segment.file.FileStore$1.run(FileStore.java:196)
>         at java.lang.Thread.run(Thread.java:662)
> {noformat}
> Looking at FileStore#L237 [1] {{segments}} might be null when memoryMapped mode is used (default). Possibly a null check is required there
> [1] https://github.com/apache/jackrabbit-oak/blob/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/segment/file/FileStore.java#L237



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