recording flv broken red5

Question

I am using red5 server 1.0.6

Some of my recorded files are broken, I have read in some articles that if a stream is closed before the bufferLength of the stream is greater than 0, the recorded file will be broken. This is my code for saving and closing the stream.

@Override public void streamPublishStart(IBroadcastStream stream) {
    try {
        /* My script to save started stream details in database */
        stream.saveAs("audio/"+username, true);
    }
    catch (Exception e) {
        e.printStackTrace(); 
    }
}

@Override public void streamBroadcastClose(IBroadcastStream stream) {
    /* My script to save closed stream details in database */
    stream.close();
}

Is the stream.close() reason for broken recordings? What happens if I don't close the stream?