求助Storm 问题？

今天做Storm Demo提交数据时报错如下：
12/03/27 18:07:57 INFO storm.StormSubmitter: Jar not uploaded to master yet. Submitting jar...
12/03/27 18:07:57 INFO storm.StormSubmitter: Uploading topology jar null to assigned location: /mnt/storm/nimbus/inbox/stormjar-ec91071b-24b7-41d4-a980-ebd85c1f0c0b.jar
Exception in thread "main" java.lang.RuntimeException: java.lang.NullPointerException
at backtype.storm.StormSubmitter.submitJar(StormSubmitter.java:92)
at backtype.storm.StormSubmitter.submitJar(StormSubmitter.java:71)
at backtype.storm.StormSubmitter.submitTopology(StormSubmitter.java:50)
at com.infosmart.topology.TestStormTopology.main(TestStormTopology.java:77)
Caused by: java.lang.NullPointerException
at java.io.FileInputStream.<init>(FileInputStream.java:103)
at java.io.FileInputStream.<init>(FileInputStream.java:66)
at backtype.storm.utils.BufferFileInputStream.<init>(BufferFileInputStream.java:14)
at backtype.storm.utils.BufferFileInputStream.<init>(BufferFileInputStream.java:19)
at backtype.storm.StormSubmitter.submitJar(StormSubmitter.java:82)
... 3 more
请大侠帮助解决。