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https://issues.apache.org/jira/browse/HDFS-7606?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14280963#comment-14280963
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Hudson commented on HDFS-7606:
------------------------------
FAILURE: Integrated in Hadoop-trunk-Commit #6879 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/6879/])
HDFS-7606. Fix potential NPE in INodeFile.getBlocks(). Contributed by Byron
Wong. (shv: rev 60cbcff2f7363e5cc386284981cac67abc965ee7)
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeFile.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
> Missing null check in INodeFile#getBlocks()
> -------------------------------------------
>
> Key: HDFS-7606
> URL: https://issues.apache.org/jira/browse/HDFS-7606
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 3.0.0
> Reporter: Ted Yu
> Assignee: Byron Wong
> Priority: Minor
> Fix For: 3.0.0
>
> Attachments: HDFS-7606-1.patch, HDFS-7606.patch, HDFS-7606.patch
>
>
> {code}
> BlockInfo[] snapshotBlocks = diff == null ? getBlocks() :
> diff.getBlocks();
> if(snapshotBlocks != null)
> return snapshotBlocks;
> // Blocks are not in the current snapshot
> // Find next snapshot with blocks present or return current file blocks
> snapshotBlocks = getDiffs().findLaterSnapshotBlocks(diff.getSnapshotId());
> {code}
> If diff is null and snapshotBlocks is null, NullPointerException would result
> from the call to diff.getSnapshotId().
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