Ted Yu created HDFS-7101:
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Summary: Potential null dereference in DFSck#doWork()
Key: HDFS-7101
URL: https://issues.apache.org/jira/browse/HDFS-7101
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Ted Yu
Priority: Minor
{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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