Thank you for your reply. If existing some package or class on the rule 's RHS ,How to filter them ,and forbid execute this rule. -- View this message in context: http://drools.46999.n3.nabble.com/rules-users-Drools6-0-Security-Issues-tp4027433p4027445.html Sent from the Drools: User forum mailing list archive at Nabble.com.