Jan Hustak created DROOLS-165: --------------------------------- Summary: Fail-fast mode when a global is not defined at session start Key: DROOLS-165 URL: https://issues.jboss.org/browse/DROOLS-165 Project: Drools Issue Type: Feature Request Security Level: Public (Everyone can see) Affects Versions: 6.0.0.Beta3 Reporter: Jan Hustak Assignee: Mark Proctor Priority: Minor The following DRL causes an infinite loop when run without setting the "missing" global: global java.util.Collection missing dialect "mvel" rule "toInfinityAndBeyond" when then x = missing[3] end because it triggers https://jira.codehaus.org/browse/MVEL-290 Even though the core issue is in MVEL I would really like an option to fail fast when a global is undefined at the very start of a session. I don't know about others but I never define globals from within the rules and I've had all sorts of trouble with missing globals - the infinite loop was just the last straw. Of course, a global may legitimately be defined as null (which would also trigger the MVEL bug). So perhaps the fail-fast mode could be enabled on a case-by-case basis: global required java.util.Collection basicHelpers Sorry if this has been suggested before, I couldn't find any pertinent discussions. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira