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Posted to oak-issues@jackrabbit.apache.org by "Michael Dürig (JIRA)" <ji...@apache.org> on 2015/05/21 23:58:17 UTC
[jira] [Resolved] (OAK-2880) NPE in SegmentWriter.writeMap
[ https://issues.apache.org/jira/browse/OAK-2880?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Dürig resolved OAK-2880.
--------------------------------
Resolution: Duplicate
Duplicate of OAK-2880
> NPE in SegmentWriter.writeMap
> -----------------------------
>
> Key: OAK-2880
> URL: https://issues.apache.org/jira/browse/OAK-2880
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: segmentmk
> Reporter: Michael Dürig
> Assignee: Michael Dürig
> Fix For: 1.3.0
>
>
> Under some rare conditions which are not entirely clear yet {{SegmentWriter.writeMap}} results in a {{NPE}}:
> {noformat}
> java.lang.NullPointerException
> at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:192)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeRecordId(SegmentWriter.java:366)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeMapLeaf(SegmentWriter.java:417)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeMapBucket(SegmentWriter.java:475)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeMapBucket(SegmentWriter.java:511)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeMap(SegmentWriter.java:711)
> {noformat}
> This happens when the {{base}} passed to {{writeMap(MapRecord base, Map<String, RecordId> changes)}} is not null but doesn't contain some of the keys *removed* through the updates provided in the passed {{changes}}.
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