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from 51ef2903f76 KAFKA-19178 Replace Vector by ArrayList for PluginClassLoader#getResources (#19529) add 7293f3a90e6 KAFKA-19183 Replace Pool with ConcurrentHashMap (#19535) No new revisions were added by this update. Summary of changes: checkstyle/import-control-jmh-benchmarks.xml | 1 - core/src/main/scala/kafka/cluster/Partition.scala | 13 ++- .../transaction/TransactionStateManager.scala | 48 +++++------ core/src/main/scala/kafka/log/LogManager.scala | 4 +- .../kafka/server/AbstractFetcherManager.scala | 3 +- .../scala/kafka/server/AbstractFetcherThread.scala | 13 ++- .../main/scala/kafka/server/DelayedProduce.scala | 16 ++-- .../main/scala/kafka/server/ReplicaManager.scala | 18 ++-- core/src/main/scala/kafka/utils/Pool.scala | 99 ---------------------- .../TransactionCoordinatorConcurrencyTest.scala | 5 +- .../transaction/TransactionStateManagerTest.scala | 42 ++++----- .../unit/kafka/server/ReplicaManagerTest.scala | 6 +- .../src/test/scala/unit/kafka/utils/PoolTest.scala | 40 --------- .../jmh/fetcher/ReplicaFetcherThreadBenchmark.java | 10 +-- 14 files changed, 85 insertions(+), 233 deletions(-) delete mode 100644 core/src/main/scala/kafka/utils/Pool.scala delete mode 100644 core/src/test/scala/unit/kafka/utils/PoolTest.scala