Ted Yu created KAFKA-7345:
-----------------------------

             Summary: Potentially unclosed FileChannel in StateDirectory#unlock
                 Key: KAFKA-7345
                 URL: https://issues.apache.org/jira/browse/KAFKA-7345
             Project: Kafka
          Issue Type: Bug
          Components: streams
            Reporter: Ted Yu


{code}
            lockAndOwner.lock.release();
            log.debug("{} Released state dir lock for task {}", logPrefix(), 
taskId);

            final FileChannel fileChannel = channels.remove(taskId);
            if (fileChannel != null) {
                fileChannel.close();
{code}
If {{lockAndOwner.lock.release()}} throws IOE, the closing of the FileChannel 
would be skipped.



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