[ https://issues.jboss.org/browse/JBTM-1602?page=com.atlassian.jira.plugin.... ] Michael Musgrove edited comment on JBTM-1602 at 3/30/13 1:10 PM: ----------------------------------------------------------------- The linked JIRA explains why 4 locks are required. The second explanation in that JIRA explains the need for the extra two locks. was (Author: mmusgrov): The linked JIRA explains why 4 locks are required -- 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