[ https://issues.jboss.org/browse/DROOLS-226?page=com.atlassian.jira.plugin... ] Mark Proctor commented on DROOLS-226: ------------------------------------- Bitmasks were using volatile, which actually is not thread safe. StagedLeftTuples while OK now, could potentially had thread safety issues in the future. So we instead "takeAll" during a sync block in the rule eval, to avoid it. It's always added back after the loop. -- 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