求解 hadoop1.0.4+hbase 0.94.15 读数据出问题，求解！！！

wyf

Exception in thread "main" java.lang.NullPointerException
    at org.apache.hadoop.net.DNS.reverseDns(DNS.java:93)
    at org.apache.hadoop.hbase.mapreduce.TableInputFormatBase.reverseDNS(TableInputFormatBase.java:219)
    at org.apache.hadoop.hbase.mapreduce.TableInputFormatBase.getSplits(TableInputFormatBase.java:184)
    at org.apache.hadoop.mapred.JobClient.writeNewSplits(JobClient.java:1063)
    at org.apache.hadoop.mapred.JobClient.writeSplits(JobClient.java:1080)
    at org.apache.hadoop.mapred.JobClient.access$600(JobClient.java:174)
    at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:992)
    at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:945)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Subject.java:396)
    at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1408)
    at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:945)
    at org.apache.hadoop.mapreduce.Job.submit(Job.java:566)
    at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:596)
    at cn.com.oozie.demo.HbaseCountSoft.main(HbaseCountSoft.java:75)