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https://issues.apache.org/jira/browse/HDFS-17443?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17831861#comment-17831861
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ASF GitHub Bot commented on HDFS-17443:
---------------------------------------
dineshchitlangia merged PR #6683:
URL: https://github.com/apache/hadoop/pull/6683
> TestNameEditsConfigs does not check null before closing fileSys and cluster
> ---------------------------------------------------------------------------
>
> Key: HDFS-17443
> URL: https://issues.apache.org/jira/browse/HDFS-17443
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: ConfX
> Priority: Major
> Labels: pull-request-available
>
> h2. What happened:
> Got NullPointerException when trying to run TestNameEditsConfigs with
> misconfiguration rather than the actual exception.
> h2. Buggy code:
> {code:java}
> @Test
> public void testNameEditsConfigsFailure() throws IOException {
> ...
> } finally {
> fileSys.close(); // here fileSys might be null
> cluster.shutdown();
> }{code}
> h2. StackTrace:
> {code:java}
> java.lang.NullPointerException: Cannot invoke
> "org.apache.hadoop.fs.FileSystem.close()" because "fileSys" is null
> at
> org.apache.hadoop.hdfs.server.namenode.TestNameEditsConfigs.testNameEditsConfigsFailure(TestNameEditsConfigs.java:450){code}
> h2. How to reproduce:
> (1) Set {{dfs.namenode.edits.dir.minimum}} to {{251625215}}
> (2) Run test:
> {{org.apache.hadoop.hdfs.server.namenode.TestNameEditsConfigs#testNameEditsConfigsFailure}}
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