[KAFKA-2105] NullPointerException in client on MetadataRequest

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.8.2.1
• Fix Version/s: 0.11.0.1, 1.0.0
• Component/s: clients
• Assignee: Manikumar
• Reporter: Roger Hoover
• Reviewer: Gwen Shapira
• Created: 08/Apr/15 04:42
• Updated: 31/Aug/17 15:45
• Resolved: 31/Aug/17 15:45

Description

With the new producer, if you accidentally pass null to KafkaProducer.partitionsFor(null), it will cause the IO thread to throw NPE.

Uncaught error in kafka producer I/O thread:
java.lang.NullPointerException
at org.apache.kafka.common.utils.Utils.utf8Length(Utils.java:174)
at org.apache.kafka.common.protocol.types.Type$5.sizeOf(Type.java:176)
at org.apache.kafka.common.protocol.types.ArrayOf.sizeOf(ArrayOf.java:55)
at org.apache.kafka.common.protocol.types.Schema.sizeOf(Schema.java:81)
at org.apache.kafka.common.protocol.types.Struct.sizeOf(Struct.java:218)
at org.apache.kafka.common.requests.RequestSend.serialize(RequestSend.java:35)
at org.apache.kafka.common.requests.RequestSend.<init>(RequestSend.java:29)
at org.apache.kafka.clients.NetworkClient.metadataRequest(NetworkClient.java:369)
at org.apache.kafka.clients.NetworkClient.maybeUpdateMetadata(NetworkClient.java:391)
at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:188)
at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:191)
at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:122)
at java.lang.Thread.run(Thread.java:745)

Issue Links

• links to: GitHub Pull Request #3697