Josh Elser created HADOOP-10927:
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Summary: Ran `hadoop credential` expecting usage, got NPE instead
Key: HADOOP-10927
URL: https://issues.apache.org/jira/browse/HADOOP-10927
Project: Hadoop Common
Issue Type: Bug
Components: security
Reporter: Josh Elser
Priority: Minor
{noformat}
$ hadoop credential
java.lang.NullPointerException
at
org.apache.hadoop.security.alias.CredentialShell.run(CredentialShell.java:67)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
at
org.apache.hadoop.security.alias.CredentialShell.main(CredentialShell.java:420)
{noformat}
Ran a no-arg version of {{hadoop credential}} expecting to get the usage/help
message (like other commands act), and got the above exception instead.
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