Edoardo Comar created KAFKA-10220:
-------------------------------------

             Summary: NPE when describing resources
                 Key: KAFKA-10220
                 URL: https://issues.apache.org/jira/browse/KAFKA-10220
             Project: Kafka
          Issue Type: Bug
          Components: core
            Reporter: Edoardo Comar


In current trunk code 
Describing a topic 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.NullPointerException}}{{at 
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)}}



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