Effect of lates Java update on OS X Snow Leopard

After the latest Apple update of Java system, Arduino.app won't open anymore, and keeps crashing on launch. I tried to change the default java version on Java preferences (setting 1.5 32 bit) but the problem remains.
Is there anyone having the same problem? Any solution?

Turns out that a bunch of people is having troubles in running Java apps on particular Snow Leopard setups.
I found by chance that this happens when you have both Java 6 and J2SE 5.0 installed. The solution is to disable the J2SE engine in Java Preferences.
See posts here: http://discussions.apple.com/thread.jspa?messageID=10700758#10700758