Lei (Eddy) Xu created HADOOP-12164:
--------------------------------------
Summary: Fix TestMove and TestFsShellReturnCode failed to get
command name using reflection.
Key: HADOOP-12164
URL: https://issues.apache.org/jira/browse/HADOOP-12164
Project: Hadoop Common
Issue Type: Bug
Affects Versions: 2.7.0
Reporter: Lei (Eddy) Xu
Assignee: Lei (Eddy) Xu
Priority: Minor
When enabled {{hadoop.shell.missing.defaultFs.warning}}, a few tests were
failed as following:
{noformat}
java.lang.RuntimeException: failed to get .NAME
at java.lang.Class.getDeclaredField(Class.java:1948)
at org.apache.hadoop.fs.shell.Command.getCommandField(Command.java:458)
at org.apache.hadoop.fs.shell.Command.getName(Command.java:401)
at
org.apache.hadoop.fs.shell.FsCommand.getCommandName(FsCommand.java:80)
at
org.apache.hadoop.fs.shell.FsCommand.processRawArguments(FsCommand.java:111)
at org.apache.hadoop.fs.shell.Command.run(Command.java:154)
at
org.apache.hadoop.fs.TestFsShellReturnCode.testChgrpGroupValidity(TestFsShellReturnCode.java:434)
{noformat}
The reason is that, in {{FsCommand#processRawArguments}}, it uses
{{getCommandName()}}, which uses reflection to find {{static String NAME}}
field, to build error message. But in the tests, the commands are built without
{{static String NAME}} field, since it is not inherited.
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