The visualizer throws the following exception if the initial contact node (passed as an argument) does not respond.
Exception in thread "NodeCollector in Visualizer" java.lang.IllegalArgumentException: n must be positive
at java.util.Random.nextInt(Random.java:250)
at ow.stat.impl.NodeCollectorImpl.run(NodeCollectorImpl.java:241)
at java.lang.Thread.run(Thread.java:619)
The cause is that the eager collection thread expects to find at least one element in the runningNodes Set (at least, the initial contact)
Logged In: YES
user_id=1977619
Originator: NO
By the way, I summited this report anonymously.
Pablo