src/main/java/org/java_websocket/AbstractWebSocket.java
private void restartConnectionLostTimer() {
		cancelConnectionLostTimer();
		connectionLostCheckerService = Executors.newSingleThreadScheduledExecutor(new NamedThreadFactory("connectionLostChecker"));
		Runnable connectionLostChecker = new Runnable() {

			/**
			 * Keep the connections in a separate list to not cause deadlocks
			 */
			private ArrayList<WebSocket> connections = new ArrayList<WebSocket>(  );
			@Override
			public void run() {
				connections.clear();
				try {
					connections.addAll( getConnections() );
					long minimumPongTime = (long) (System.nanoTime() - ( connectionLostTimeout * 1.5 ));
					for( WebSocket conn : connections ) {
						executeConnectionLostDetection(conn, minimumPongTime);
					}
				} catch ( Exception e ) {
					//Ignore this exception
				}
				connections.clear();
			}
		};

		connectionLostCheckerFuture = connectionLostCheckerService.scheduleAtFixedRate(connectionLostChecker, connectionLostTimeout, connectionLostTimeout, TimeUnit.NANOSECONDS);
	}
private void restartConnectionLostTimer() {
		cancelConnectionLostTimer();
		connectionLostCheckerService = Executors.newSingleThreadScheduledExecutor(new NamedThreadFactory("connectionLostChecker"));
		Runnable connectionLostChecker = new Runnable() {

			/**
			 * Keep the connections in a separate list to not cause deadlocks
			 */
			private ArrayList<WebSocket> connections = new ArrayList<WebSocket>(  );
			@Override
			public void run() {
				connections.clear();
				try {
					connections.addAll( getConnections() );
					long minimumPongTime = (long) (System.nanoTime() - ( connectionLostTimeout * 1.5 ));
					for( WebSocket conn : connections ) {
						executeConnectionLostDetection(conn, minimumPongTime);
					}
				} catch ( Exception e ) {
					//Ignore this exception
				}
				connections.clear();
			}
		};

		connectionLostCheckerFuture = connectionLostCheckerService.scheduleAtFixedRate(connectionLostChecker, connectionLostTimeout, connectionLostTimeout, TimeUnit.NANOSECONDS);
	}
This methods allows the reset of the connection lost timer in case of a changed parameter
@since 1.3.4