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water.DException$DistributedException: from /192.168.100.141:54321; class java.lang.NullPointerException: null while mapping key $04ff00000000ffffffff$nfs://home/user/tomcat-6.0/webapps/ChampionWS/WEB-INF/files/csv_converted_434.csv	at water.fvec.Vec.chunkKey(Vec.java:660)	at water.fvec.Vec.chunkKey(Vec.java:658)	at water.fvec.Vec.toString(Vec.java:858)	at java.lang.String.valueOf(String.java:2847)	at java.lang.StringBuilder.append(StringBuilder.java:128)	at water.Value.get(Value.java:110)	at water.Value.getFirstBytes(Value.java:257)	at water.util.Utils.getFirstUnzipedBytes(Utils.java:769)	at water.util.Utils.getFirstUnzipedBytes(Utils.java:766)	at water.parser.GuessSetup$GuessSetupTsk.map(GuessSetup.java:136)	at water.MRTask.lcompute(MRTask.java:69)	at water.DRemoteTask.compute2(DRemoteTask.java:91)	at water.H2O$H2OCountedCompleter.compute(H2O.java:653)	at jsr166y.CountedCompleter.exec(CountedCompleter.java:429)	at jsr166y.ForkJoinTask.doExec(ForkJoinTask.java:263)	at jsr166y.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:974)	at jsr166y.ForkJoinPool.runWorker(ForkJoinPool.java:1477)	at jsr166y.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104)