Revert "change to java collection"

This reverts commit 93c20a2.

Author: joshua2519

core/src/main/scala/kafka/cluster/Partition.scala

@@ -563,7 +563,7 @@ class Partition(val topicPartition: TopicPartition,
 
   private def clear(): Unit = {
     remoteReplicasMap.clear()
-    assignmentState = new SimpleAssignmentState(util.List.of())
+    assignmentState = new SimpleAssignmentState(Seq.empty.asJava)
     log = None
     futureLog = None
     partitionState = new CommittedPartitionState(util.Set.of(), LeaderRecoveryState.RECOVERED)
@@ -1799,7 +1799,7 @@ class Partition(val topicPartition: TopicPartition,
       //   2) leaderAndIsr.partitionEpoch == partitionEpoch: No update was performed since proposed and actual state are the same.
       // In both cases, we want to move from Pending to Committed state to ensure new updates are processed.
 
-      partitionState = new CommittedPartitionState(util.Set.copyOf(leaderAndIsr.isr), leaderAndIsr.leaderRecoveryState)
+      partitionState = new CommittedPartitionState(new util.HashSet(leaderAndIsr.isr), leaderAndIsr.leaderRecoveryState)
       partitionEpoch = leaderAndIsr.partitionEpoch
       info(s"ISR updated to ${partitionState.isr.asScala.mkString(",")} ${if (isUnderMinIsr) "(under-min-isr)" else ""} " +
         s"and version updated to $partitionEpoch")