KAFKA-20894: Make StreamsGroupDescription.toString null-safe - #23083
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KAFKA-20894: Make StreamsGroupDescription.toString null-safe#23083Gimini-3 wants to merge 1 commit into
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Gimini-3
marked this pull request as ready for review
August 5, 2026 08:38
mjsax
approved these changes
Aug 5, 2026
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KAFKA-20894
DescribeStreamsGroupsOptionsomits authorized operations by default.The omitted response value is converted to
null, which is a documentedvalid state for
StreamsGroupDescription.authorizedOperations().However,
StreamsGroupDescription.toString()unconditionally calledstream()on that nullable set, so logging or otherwise rendering asuccessfully described group could throw
NullPointerException.This change renders omitted authorized operations as
nullwhilepreserving the existing output format for populated sets. It also
extends the existing AdminClient test for an omitted
authorized-operations response to verify that the resulting description
can be converted to a string and includes
authorizedOperations=null.Testing:
DOCKER_API_VERSION=1.40 ./gradlew clients:test./gradlew clients:test --tests org.apache.kafka.clients.admin.KafkaAdminClientTest.testDescribeStreamsGroupsWithAuthorizedOperationsOmitted --tests org.apache.kafka.clients.admin.internals.DescribeStreamsGroupsHandlerTest./gradlew spotlessCheck./gradlew clients:spotbugsMain clients:spotbugsTest -x testThe full clients test suite, targeted regression tests, Checkstyle,
SpotBugs main analysis, and Spotless checks passed.
clients:spotbugsTestwas skipped by the build configuration.Reviewers: Matthias J. Sax matthias@confluent.io