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https://issues.apache.org/jira/browse/HADOOP-10850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14078295#comment-14078295
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Daryn Sharp commented on HADOOP-10850:
--------------------------------------
Either {{Class.forName("xxx.NegotiatorImpl")}} must throw
{{ClassNotFoundException}}, or {{NegotiatorImpl.newInstance}} must throw
{{ReflectiveOperationException}} in order to blacklist. Which JDK version
exhibited the behavior you are describing?
> KerberosAuthenticator should not do the SPNEGO handshake
> --------------------------------------------------------
>
> Key: HADOOP-10850
> URL: https://issues.apache.org/jira/browse/HADOOP-10850
> Project: Hadoop Common
> Issue Type: Bug
> Components: security
> Affects Versions: 2.4.1
> Reporter: Alejandro Abdelnur
> Assignee: Alejandro Abdelnur
>
> As mentioned in HADOOP-10453, the JDK automatically does a SPNEGO handshake
> when opening a connection with a URL within a Kerberos login context, there
> is no need to do the SPNEGO handshake in the {{KerberosAuthenticator}},
> simply extract the auth token (hadoop-auth cookie) and do the fallback if
> necessary.
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