[HDFS-11128] CreateEditsLog throws NullPointerException

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha2
• Component/s: hdfs
• Hadoop Flags: Reviewed
• Assignee: Hanisha Koneru
• Reporter: Hanisha Koneru
• Created: 11/Nov/16 00:25
• Updated: 11/Nov/16 18:07
• Resolved: 11/Nov/16 14:43

Description

When trying to create edit logs through CreateEditsLog, the following exception is encountered.

Exception in thread "main" java.lang.NullPointerException
at java.io.File.<init>(File.java:415)
at org.apache.hadoop.hdfs.server.namenode.NNStorage.getStorageDirectory(NNStorage.java:343)
at org.apache.hadoop.hdfs.server.namenode.FSImageTestUtil.createStandaloneEditLog(FSImageTestUtil.java:200)
at org.apache.hadoop.hdfs.server.namenode.CreateEditsLog.main(CreateEditsLog.java:205)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.hadoop.util.RunJar.run(RunJar.java:239)
at org.apache.hadoop.util.RunJar.main(RunJar.java:153)

This happens as Mockito is unable to access package protected method NNStorage#getStorageDirectory
We need to change the access of this method to public