[rules-users] passing empty string to a method with varargs failed on the second execution

ContainsCODE.drl <http://drools.46999.n3.nabble.com/file/n4021195/ContainsCODE.drl> See attached DRL. input is: condContainsCODE=Lists.newArrayList("1", "2", "4") I Executed this DRL with the above input twice times. I got indexOutOfBound Exception. If I execute it *only one time* I didn't get this exception. In addition, I found that if I change the rule to be *without the empty string element*, then I didn't get this exception even if I run it twice times. This rule failed on the second time: when condContainsCODE(Operators.contains(value,"1","2",*" "*)) this succeeded even in the second time: when condContainsCODE(Operators.contains(value,"1","2")) also this: when condContainsCODE(*eval*(Operators.contains(value,"1","2",*" "*))) That is the *Operators.contains* method: public static boolean contains(Collection<?> c1, Object.. obj) { return c1.containsAll(Lists.newArrayList(obj)); } I read that are problems with varargs, but I don't understand why only *space *causes problems, and why only in the *second time*? looks like optimizer bug... -- View this message in context: http://drools.46999.n3.nabble.com/passing-empty-string-to-a-method-with-v... Sent from the Drools: User forum mailing list archive at Nabble.com.