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java.lang.Exception: 	at kafka.controller.PartitionStateMachine$$anonfun$handleStateChanges$3.apply(PartitionStateMachine.scala:158)	at kafka.controller.PartitionStateMachine$$anonfun$handleStateChanges$3.apply(PartitionStateMachine.scala:158)	at kafka.utils.Logging$class.error(Logging.scala:100)	at kafka.controller.PartitionStateMachine.error(PartitionStateMachine.scala:44)	at kafka.controller.PartitionStateMachine.handleStateChanges(PartitionStateMachine.scala:158)	at kafka.controller.KafkaController.onNewPartitionCreation(KafkaController.scala:518)	at kafka.controller.KafkaController.onNewTopicCreation(KafkaController.scala:505)	at kafka.controller.PartitionStateMachine$TopicChangeListener$$anonfun$handleChildChange$1.apply$mcV$sp(PartitionStateMachine.scala:455)	at kafka.controller.PartitionStateMachine$TopicChangeListener$$anonfun$handleChildChange$1.apply(PartitionStateMachine.scala:437)	at kafka.controller.PartitionStateMachine$TopicChangeListener$$anonfun$handleChildChange$1.apply(PartitionStateMachine.scala:437)	at kafka.utils.CoreUtils$.inLock(CoreUtils.scala:255)	at kafka.controller.PartitionStateMachine$TopicChangeListener.handleChildChange(PartitionStateMachine.scala:436)	at org.I0Itec.zkclient.ZkClient$10.run(ZkClient.java:842)	at org.I0Itec.zkclient.ZkEventThread.run(ZkEventThread.java:71)