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java.lang.RuntimeException: java.lang.NullPointerException at backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:128)[storm-core-0.9.3.jar:0.9.3] at backtype.storm.utils.DisruptorQueue.consumeBatchWhenAvailable(DisruptorQueue.java:99)[storm-core-0.9.3.jar:0.9.3] at backtype.storm.disruptor$consume_batch_when_available.invoke(disruptor.clj:80)[storm-core-0.9.3.jar:0.9.3] at backtype.storm.disruptor$consume_loop_STAR_$fn__759.invoke(disruptor.clj:94)[storm-core-0.9.3.jar:0.9.3] at backtype.storm.util$async_loop$fn__458.invoke(util.clj:463)[storm-core-0.9.3.jar:0.9.3] at clojure.lang.AFn.run(AFn.java:24)[clojure-1.5.1.jar:na] at java.lang.Thread.run(Thread.java:745)[na:1.7.0_65]Caused by: java.lang.NullPointerException: null at clojure.lang.RT.intCast(RT.java:1087)[clojure-1.5.1.jar:na] at backtype.storm.daemon.worker$mk_transfer_fn$fn__3548.invoke(worker.clj:129)[storm-core-0.9.3.jar:0.9.3] at backtype.storm.daemon.executor$start_batch_transfer__GT_worker_handler_BANG_$fn__3282.invoke(executor.clj:258)[storm-core-0.9.3.jar:0.9.3] at backtype.storm.disruptor$clojure_handler$reify__746.onEvent(disruptor.clj:58)[storm-core-0.9.3.jar:0.9.3] at backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:125)[storm-core-0.9.3.jar:0.9.3] ... 6 more