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https://issues.apache.org/jira/browse/SOLR-9542?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15509713#comment-15509713
 ] 

Noble Paul commented on SOLR-9542:
----------------------------------

Adding jackson just for kerberosPlugin feels like an overkill. Can this be 
optional?

> Kerberos delegation tokens requires missing Jackson library
> -----------------------------------------------------------
>
>                 Key: SOLR-9542
>                 URL: https://issues.apache.org/jira/browse/SOLR-9542
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Ishan Chattopadhyaya
>         Attachments: SOLR-9542.patch
>
>
> GET, RENEW or CANCEL operations for the delegation tokens support requires 
> the Solr server to have old jackson added as a dependency.
> Steps to reproduce the problem:
> 1) Configure Solr to use delegation tokens
> 2) Start Solr
> 3) Use a SolrJ application to get a delegation token.
> The server throws the following:
> {code}
> java.lang.NoClassDefFoundError: org/codehaus/jackson/map/ObjectMapper
>         at 
> org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticationHandler.managementOperation(DelegationTokenAuthenticationHandler.java:279)
>         at 
> org.apache.solr.security.KerberosPlugin$RequestContinuesRecorderAuthenticationHandler.managementOperation(KerberosPlugin.java:566)
>         at 
> org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:514)
>         at 
> org.apache.solr.security.DelegationTokenKerberosFilter.doFilter(DelegationTokenKerberosFilter.java:123)
>         at 
> org.apache.solr.security.KerberosPlugin.doAuthenticate(KerberosPlugin.java:265)
>         at 
> org.apache.solr.servlet.SolrDispatchFilter.authenticateRequest(SolrDispatchFilter.java:318)
>         at 
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:222)
>         at 
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:208)
>         at 
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1668)
>         at 
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:581)
>         at 
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
>         at 
> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
>         at 
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
>         at 
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1160)
>         at 
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511)
>         at 
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
>         at 
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1092)
>         at 
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
>         at 
> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
>         at 
> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119)
>         at 
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
>         at org.eclipse.jetty.server.Server.handle(Server.java:518)
>         at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:308)
>         at 
> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:244)
>         at 
> org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)
>         at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
>         at 
> org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
>         at 
> org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:246)
>         at 
> org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:156)
>         at 
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)
>         at 
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)
>         at java.lang.Thread.run(Thread.java:745)
> {code}



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