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https://issues.apache.org/jira/browse/YARN-1762?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jian He resolved YARN-1762.
---------------------------
Resolution: Invalid
> Potential NPE in distributedshell Client#run()
> ----------------------------------------------
>
> Key: YARN-1762
> URL: https://issues.apache.org/jira/browse/YARN-1762
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Ted Yu
>
> In
> hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/src/main/java/org/apache/hadoop/yarn/applications/distributedshell/Client.java
> :
> {code}
> addToLocalResources(fs, appMasterJar, appMasterJarPath, appId.getId(),
> localResources, null);
> {code}
> addToLocalResources() writes resources, null in the above case, through
> DataOutputStream#writeUTF().
> According to
> http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/java/io/DataOutputStream.java#DataOutputStream.writeUTF%28java.lang.String%2Cjava.io.DataOutput%29
> , str.length() would be called on the null parameter.
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