[ https://issues.jboss.org/browse/DROOLS-1540?page=com.atlassian.jira.plugi... ] Mario Fusco commented on DROOLS-1540: ------------------------------------- [~fabio.bonfante] As found by [~awilkinson] (thanks for it) the problem was caused by that additional droolsClassLoader referenced by our ProjectClassLoader. That (ugly) ack is only necessary when you run inside an OSGi container, but we were use it regardless. What I'm doing now is just limiting the scope of the ack only when you're effectively running inside OSGi, thus eliminating the cause of the problem with spring-boot-devtools when you aren't. As for your 2nd question we could in theory do what you wrote, but this will require some reflection and slow down the whole engine for something that is useless in 99.9% of cases, so I don't t think it would be a good idea. -- This message was sent by Atlassian Jira (v7.12.1#712002)