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https://issues.apache.org/jira/browse/RANGER-2576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16933281#comment-16933281
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Nikhil Purbhe commented on RANGER-2576:
---------------------------------------

patch committed on 
[master|https://github.com/apache/ranger/commit/06f329d5fc1e911bde012725f91a4bc46ff802d3]

> Ranger is failing to start in kerberize mode with java-11
> ---------------------------------------------------------
>
>                 Key: RANGER-2576
>                 URL: https://issues.apache.org/jira/browse/RANGER-2576
>             Project: Ranger
>          Issue Type: Sub-task
>          Components: Ranger
>            Reporter: Nikhil Purbhe
>            Assignee: Nikhil Purbhe
>            Priority: Major
>
> Ranger is failing to start in kerberize mode with java-11 with error. 
>  
> {code:java}
> SEVERE: Tomcat Server failed to start:java.io.IOException: Login failure for 
> rangeradmin/h...@domain.site from keytab /path/to/ranger.keytab
>  java.io.IOException: Login failure for rangeradmin/h...@domain.site from 
> keytab /path/to/ranger.keytab
>  at 
> org.apache.hadoop.security.SecureClientLogin.loginUserFromKeytab(SecureClientLogin.java:71)
>  at 
> org.apache.ranger.server.tomcat.EmbeddedServer.start(EmbeddedServer.java:249)
>  at 
> org.apache.ranger.server.tomcat.EmbeddedServer.main(EmbeddedServer.java:69)
>  Caused by: javax.security.auth.login.LoginException: 
> java.lang.NullPointerException: invalid null input(s)
>  at java.base/java.util.Objects.requireNonNull(Objects.java:246)
>  at java.base/javax.security.auth.Subject$SecureSet.remove(Subject.java:1172)
>  at 
> java.base/java.util.Collections$SynchronizedCollection.remove(Collections.java:2041)
>  at 
> jdk.security.auth/com.sun.security.auth.module.Krb5LoginModule.logout(Krb5LoginModule.java:1197)
>  at 
> java.base/javax.security.auth.login.LoginContext.invoke(LoginContext.java:732)
>  at 
> java.base/javax.security.auth.login.LoginContext$4.run(LoginContext.java:665){code}



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