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https://issues.apache.org/jira/browse/OOZIE-2748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15710238#comment-15710238
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Christopher Jackson edited comment on OOZIE-2748 at 11/30/16 11:48 PM:
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Just ran into this myself with an EL function that was returning a null. Cheers
for the patch and unit tests.
was (Author: jackson):
Just ran into this myself with an EL function that was returning a null. Cheers
for the patch.
> NPE in LauncherMapper.printArgs()
> ---------------------------------
>
> Key: OOZIE-2748
> URL: https://issues.apache.org/jira/browse/OOZIE-2748
> Project: Oozie
> Issue Type: Bug
> Components: core
> Affects Versions: 4.2.0
> Reporter: Peter Bacsko
> Assignee: Peter Bacsko
> Attachments: OOZIE-2748-001.patch
>
>
> If we define argument for the Spark action like this
> {code}
> <spark xmlns="uri:oozie:spark-action:0.2">
> <job-tracker>${jobTracker}</job-tracker>
> <name-node>${nameNode}</name-node>
> <configuration>
> <property>
> <name>oozie.use.system.libpath</name>
> <value>true</value>
> </property>
> <property>
> <name></name>
> <value></value>
> </property>
> </configuration>
> <master>yarn-cluster</master>
> <mode>cluster</mode>
> <name>Something</name>
> <class>package.of.my.Class</class>
> <jar>${nameNode}/myjar.jar</jar>
> <arg></arg> <--- cause of the NPE
> </spark>
> {code}
> then we get a NullPointerException in LauncherMapper:
> {code}
> Failing Oozie Launcher, Main class
> [org.apache.oozie.action.hadoop.SparkMain], exception invoking main(), null
> java.lang.NullPointerException
> at
> org.apache.oozie.action.hadoop.LauncherMapper.printArgs(LauncherMapper.java:627)
> at
> org.apache.oozie.action.hadoop.LauncherMapper.map(LauncherMapper.java:212)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54)
> ...
> {code}
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