Exception in thread "main" java.lang.NullPointerException

[jingtw]

我的测试表里面没有一条数据，我执行
./cassandra-count -host xxx -user xxx -pw xxx -keyspace xxx -table xxx -debug 2
就会报错，请问是什么原因啊？
Version: 0.0.6
Splitting into 256 splits
Splitting 257 ranges each into 0 splits
Total ranges: 257
Exception in thread "main" java.lang.NullPointerException
at hessian.CqlCount.prepareStatement(CqlCount.java:433)
at hessian.CqlCount.run(CqlCount.java:470)
at hessian.CqlCount.main(CqlCount.java:529)