[rules-users] "in" syntax breaking the Rete Tree

When I use the "in" operator, it breaks the Rete diagram e.g, if I do Class X { private into foo; //setter & getter for foo } rule "ABC" when X ( foo in (2,3) ) then System.out.println ("Hello"); end it breaks the Rete Tree with a java.lang.NullPointerException:null. Why does it do that? That is valid syntax. Regards, -- View this message in context: http://drools.46999.n3.nabble.com/in-syntax-breaking-the-Rete-Tree-tp4028... Sent from the Drools: User forum mailing list archive at Nabble.com.