Details
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Bug
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Status: Resolved
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Minor
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Resolution: Fixed
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None
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None
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None
Description
I ran into these failures consistently when trying to build Kafka locally:
kafka.server.ServerShutdownTest > testCleanShutdown FAILED
java.lang.NullPointerException
at kafka.server.ServerShutdownTest$$anonfun$verifyNonDaemonThreadsStatus$2.apply(ServerShutdownTest.scala:147)
at kafka.server.ServerShutdownTest$$anonfun$verifyNonDaemonThreadsStatus$2.apply(ServerShutdownTest.scala:147)
at scala.collection.TraversableOnce$$anonfun$count$1.apply(TraversableOnce.scala:114)
at scala.collection.TraversableOnce$$anonfun$count$1.apply(TraversableOnce.scala:113)
at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:105)
at scala.collection.TraversableOnce$class.count(TraversableOnce.scala:113)
at scala.collection.mutable.ArrayOps$ofRef.count(ArrayOps.scala:105)
at kafka.server.ServerShutdownTest.verifyNonDaemonThreadsStatus(ServerShutdownTest.scala:147)
at kafka.server.ServerShutdownTest.testCleanShutdown(ServerShutdownTest.scala:101)
kafka.server.ServerShutdownTest > testCleanShutdownWithDeleteTopicEnabled FAILED
java.lang.NullPointerException
at kafka.server.ServerShutdownTest$$anonfun$verifyNonDaemonThreadsStatus$2.apply(ServerShutdownTest.scala:147)
at kafka.server.ServerShutdownTest$$anonfun$verifyNonDaemonThreadsStatus$2.apply(ServerShutdownTest.scala:147)
at scala.collection.TraversableOnce$$anonfun$count$1.apply(TraversableOnce.scala:114)
at scala.collection.TraversableOnce$$anonfun$count$1.apply(TraversableOnce.scala:113)
at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:105)
at scala.collection.TraversableOnce$class.count(TraversableOnce.scala:113)
at scala.collection.mutable.ArrayOps$ofRef.count(ArrayOps.scala:105)
at kafka.server.ServerShutdownTest.verifyNonDaemonThreadsStatus(ServerShutdownTest.scala:147)
at kafka.server.ServerShutdownTest.testCleanShutdownWithDeleteTopicEnabled(ServerShutdownTest.scala:114)
kafka.server.ServerShutdownTest > testCleanShutdownAfterFailedStartup FAILED
java.lang.NullPointerException
at kafka.server.ServerShutdownTest$$anonfun$verifyNonDaemonThreadsStatus$2.apply(ServerShutdownTest.scala:147)
at kafka.server.ServerShutdownTest$$anonfun$verifyNonDaemonThreadsStatus$2.apply(ServerShutdownTest.scala:147)
at scala.collection.TraversableOnce$$anonfun$count$1.apply(TraversableOnce.scala:114)
at scala.collection.TraversableOnce$$anonfun$count$1.apply(TraversableOnce.scala:113)
at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:105)
at scala.collection.TraversableOnce$class.count(TraversableOnce.scala:113)
at scala.collection.mutable.ArrayOps$ofRef.count(ArrayOps.scala:105)
at kafka.server.ServerShutdownTest.verifyNonDaemonThreadsStatus(ServerShutdownTest.scala:147)
at kafka.server.ServerShutdownTest.testCleanShutdownAfterFailedStartup(ServerShutdownTest.scala:141)
It looks like Jenkins also had issues with these tests:
https://builds.apache.org/job/Kafka-trunk/351/console
I would like to provide a patch that fixes this.