[KAFKA-10220] NPE when describing resources

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 2.7.0
• Component/s: core
• Assignee: Luke Chen
• Reporter: Edoardo Comar
• Created: 30/Jun/20 10:26
• Updated: 09/Jul/20 09:28
• Resolved: 09/Jul/20 08:59

Description

In current trunk code
Describing a topic from the CLI can fail with an NPE in the broker

on the line 

          resource.configurationKeys.asScala.forall(_.contains(configName))

 

(configurationKeys is null)

[2020-06-30 11:10:39,464] ERROR [Admin Manager on Broker 0]: Error processing describe configs request for resource DescribeConfigsResource(resourceType=2, resourceName='topic1', configurationKeys=null) (kafka.server.AdminManager)java.lang.NullPointerExceptionat kafka.server.AdminManager.$anonfun$describeConfigs$3(AdminManager.scala:395)at kafka.server.AdminManager.$anonfun$describeConfigs$3$adapted(AdminManager.scala:393)at scala.collection.TraversableLike.$anonfun$filterImpl$1(TraversableLike.scala:248)at scala.collection.Iterator.foreach(Iterator.scala:929)at scala.collection.Iterator.foreach$(Iterator.scala:929)at scala.collection.AbstractIterator.foreach(Iterator.scala:1417)at scala.collection.IterableLike.foreach(IterableLike.scala:71)at scala.collection.IterableLike.foreach$(IterableLike.scala:70)at scala.collection.AbstractIterable.foreach(Iterable.scala:54)at scala.collection.TraversableLike.filterImpl(TraversableLike.scala:247)at scala.collection.TraversableLike.filterImpl$(TraversableLike.scala:245)at scala.collection.AbstractTraversable.filterImpl(Traversable.scala:104)at scala.collection.TraversableLike.filter(TraversableLike.scala:259)at scala.collection.TraversableLike.filter$(TraversableLike.scala:259)at scala.collection.AbstractTraversable.filter(Traversable.scala:104)at kafka.server.AdminManager.createResponseConfig$1(AdminManager.scala:393)at kafka.server.AdminManager.$anonfun$describeConfigs$1(AdminManager.scala:412)at scala.collection.immutable.List.map(List.scala:283)at kafka.server.AdminManager.describeConfigs(AdminManager.scala:386)at kafka.server.KafkaApis.handleDescribeConfigsRequest(KafkaApis.scala:2595)at kafka.server.KafkaApis.handle(KafkaApis.scala:165)at kafka.server.KafkaRequestHandler.run(KafkaRequestHandler.scala:70)at java.lang.Thread.run(Thread.java:748)

Issue Links

• links to: GitHub Pull Request #8966