Byteman rule check failure with version 4.0.9 --------------------------------------------- Key: JBTM-3226 URL: https://issues.jboss.org/browse/JBTM-3226 Project: JBoss Transaction Manager Issue Type: Bug Components: Testing Affects Versions: 5.10.0.Final Reporter: Michael Musgrove Assignee: Michael Musgrove Priority: Major Fix For: 5.next Our byteman scripts fail rule checking when using byteman version 4.0.9: {quote} [ERROR] Failed to execute goal org.jboss.byteman:byteman-rulecheck-maven-plugin:4.0.9:rulecheck (rulecheck) on project arjuna: Execution rulecheck of goal org.jboss.byteman:byteman-rulecheck-maven-plugin:4.0.9:r ulecheck failed.: NullPointerException -> [Help 1] [ERROR] {quote} The byteman bug report is issue https://issues.jboss.org/browse/BYTEMAN-392 The byteman upgrade was introduced by pull request 1530 (https://github.com/jbosstm/narayana/pull/1530) The issue occurs whenever a byteman script contains more that one rule (so the workaround is to only have single rule scripts).