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Date: Tue, 27 Oct 2015 17:15:28 +0000 (UTC)
From: "zhihai xu (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HADOOP-12178) NPE during handling of SASL setup
 if problem with SASL resolver class
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    [ https://issues.apache.org/jira/browse/HADOOP-12178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14976762#comment-14976762 ] 

zhihai xu commented on HADOOP-12178:
------------------------------------

Committed it to trunk and branch-2, thanks [~steve_l] for the contribution! thanks [~hitliuyi] for the review!

> NPE during handling of SASL setup if problem with SASL resolver class
> ---------------------------------------------------------------------
>
>                 Key: HADOOP-12178
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12178
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: ipc
>    Affects Versions: 2.7.1
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Minor
>         Attachments: HADOOP-12178-001.patch
>
>
> If there's any problem in the constructor of {{SaslRpcClient}}, then IPC Client throws an NPE rather than forwarding the stack trace. This is because the exception handler assumes that {{saslRpcClient}} is not null, that the exception is related to the SASL setup itself.
> The exception handler needs to check for {{saslRpcClient}} being null, and if so, rethrow the exception


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