[jira] [Commented] (HADOOP-7354) NullPointerException in the job tracker UI, when we perform kill or change the priority of jobs without selecting the any job.

["Devaraj K (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-7354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13042816#comment-13042816 ] 

Devaraj K commented on HADOOP-7354:
-----------------------------------

Issue is moved to Hadoop Common because changes need to be done in common for this issue. 
Provided patch with server side fix.


> NullPointerException in the job tracker UI, when we perform kill or change the priority of jobs without selecting the any job.
> ------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-7354
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7354
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 0.23.0
>            Reporter: Devaraj K
>            Assignee: Devaraj K
>             Fix For: 0.23.0
>
>         Attachments: MAPREDUCE-2528-1.patch, MAPREDUCE-2528.patch
>
>
> If we click on Kill Selected Jobs or Change button without selecting any job, it is giving the below exception in the UI.
> {code}
> java.lang.NullPointerException
> at org.apache.hadoop.http.HttpServer$QuotingInputFilter$RequestQuoter.getParameterValues(HttpServer.java:798)
> at org.apache.hadoop.mapred.JSPUtil.processButtons(JSPUtil.java:209)
> at org.apache.hadoop.mapred.jobtracker_jsp._jspService(jobtracker_jsp.java:146)
> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502)
> at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1124)
> at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:871)
> at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1115)
> at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:361)
> at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
> at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417)
> at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> at org.mortbay.jetty.Server.handle(Server.java:324)
> at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:534)
> at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:879)
> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:741)
> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:213)
> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:403)
> at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
> at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:522)
> {code}

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