#vulnerable code 
                             @Override
	public void handleIOException(SharingPeer peer, IOException ioe) {
		logger.error("I/O error while exchanging data with {}, " +
			"closing connection with it!", peer, ioe.getMessage());
		this.stop();
		this.setState(ClientState.ERROR);
	} 
                            #location 5 
                            #vulnerability type THREAD_SAFETY_VIOLATION
#fixed code
                             @Override
	public void handleIOException(SharingPeer peer, IOException ioe) {
		logger.warn("I/O error while exchanging data with {}, " +
			"closing connection with it!", peer, ioe.getMessage());
		peer.unbind(true);
	}