intermittent DFSClient TLK filter JUNIT test failure

DFSClient TLK filter JUNIT test intermittently fails:
 
[INFO] Running org.hpccsystems.dfs.client.DFSIndexTest
 
Num file parts: 1
 
Time to create batch record reader: 19ms
 
Starting tlk filter test.
 
Key: 0 Search value: 3 found: false
 
Key: 3 Search value: 3 found: true
 
Error: Tests run: 4, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 85.014 s <<< FAILURE! - in org.hpccsystems.dfs.client.DFSIndexTest
 
Error: testBatchRandomAccess(org.hpccsystems.dfs.client.DFSIndexTest) Time elapsed: 20.717 s <<< FAILURE!
 
java.lang.AssertionError: Error: key values did not match.
 
at org.hpccsystems.dfs.client.DFSIndexTest.testBatchRandomAccess(DFSIndexTest.java:383)