On Jan 2, 2011, at 6:42 AM, Rémi Forax wrote: > This means there is a bug in my code but also > that there is a bug in the VM which should reject the bad class file > instead of crashing. Try "java -Xverify:all". If the class file fails verification *but* the verifier is not used, the JVM is allowed to be unpredictable. -- John