PE scan is failing with NullPointerException

~/current/bigdata-hbase/hbase/hbase/bin/hbase pe --nomapred scan 1 > scan1

java.io.IOException: java.lang.NullPointerException
        at org.apache.hadoop.hbase.PerformanceEvaluation.doLocalClients(PerformanceEvaluation.java:447)
        at org.apache.hadoop.hbase.PerformanceEvaluation.runTest(PerformanceEvaluation.java:1920)
        at org.apache.hadoop.hbase.PerformanceEvaluation.run(PerformanceEvaluation.java:2305)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
        at org.apache.hadoop.hbase.PerformanceEvaluation.main(PerformanceEvaluation.java:2326)
Caused by: java.lang.NullPointerException
        at org.apache.hadoop.hbase.PerformanceEvaluation$ScanTest.testTakedown(PerformanceEvaluation.java:1530)
        at org.apache.hadoop.hbase.PerformanceEvaluation$Test.test(PerformanceEvaluation.java:1165)
        at org.apache.hadoop.hbase.PerformanceEvaluation.runOneClient(PerformanceEvaluation.java:1896)
        at org.apache.hadoop.hbase.PerformanceEvaluation$1.call(PerformanceEvaluation.java:429)
        at org.apache.hadoop.hbase.PerformanceEvaluation$1.call(PerformanceEvaluation.java:424)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)