Replication leaks file reader resource & not reset currentNbOperations

When I trace test case TestReplicationQueueFailover, I found current replication logic has two following issues:

1) leak file reader when finishing read a file in function finishCurrentFile
2) never reset currentNbOperations(this can be seen in the attached error log) such as "currentNbOperations:12655 and seenEntries:0 and size: 0" inconsistant info.