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https://issues.apache.org/jira/browse/HDFS-7101?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16368441#comment-16368441
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Ted Yu edited comment on HDFS-7101 at 4/10/18 1:03 AM:
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More review, please .
was (Author: [email protected]):
More review, please.
> Potential null dereference in DFSck#doWork()
> --------------------------------------------
>
> Key: HDFS-7101
> URL: https://issues.apache.org/jira/browse/HDFS-7101
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.5.1
> Reporter: Ted Yu
> Assignee: skrho
> Priority: Minor
> Labels: BB2015-05-TBR
> Attachments: HDFS-7101.v1.patch, HDFS-7101_001.patch
>
>
> {code}
> String lastLine = null;
> int errCode = -1;
> try {
> while ((line = input.readLine()) != null) {
> ...
> if (lastLine.endsWith(NamenodeFsck.HEALTHY_STATUS)) {
> errCode = 0;
> {code}
> If readLine() throws exception, lastLine may be null, leading to NPE.
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