i am working on an installation, controlling video projectors with the client class

everything works fine with my beamers connected, but i would like to be able to catch if the beamers for some reason aren't connected. if i try to create a Client with a non-existing IP, i get erratic results. every second time or so, i get the following error msg:

java.net.NoRouteToHostException: No route to host

at java.net.PlainSocketImpl.socketConnect(Native Method)

at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)

at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)

at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)

at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:432)

at java.net.Socket.connect(Socket.java:529)

at java.net.Socket.connect(Socket.java:478)

at java.net.Socket.<init>(Socket.java:375)

at java.net.Socket.<init>(Socket.java:189)

at processing.net.Client.<init>(Client.java:75)

at opening_client.setup(opening_client.java:34)

at processing.core.PApplet.handleDraw(PApplet.java:1608)

at processing.core.PApplet.run(PApplet.java:1530)

at java.lang.Thread.run(Thread.java:680)

and the program continues. other times the program hangs.

is there a possibility of avoiding the program hanging? some try / catch exception trick perhaps?

below is a sample program with the described behavoir: