module.path cannot be modified after it is set ---------------------------------------------- Key: WFCORE-3895 URL: https://issues.jboss.org/browse/WFCORE-3895 Project: WildFly Core Issue Type: Bug Components: Embedded Affects Versions: 5.0.0.Beta5 Reporter: Erich Duda Assignee: David Lloyd Priority: Blocker *Scenario:* * Run CLI in non-modular class loading mode. * Run embed-server with {{--jboss-home}} pointing to server A * Stop embed-server * Remove server A * Run embed-server with {{--jboss-home}} pointing to server B *Expectation:* embed-server with {{--jboss-home}} pointing to server B will boot. *Reality*: The following error message is thrown. As you can see the embed server tries to load modules from server A directory even if the jboss-home was set to server B. {code} Cannot start embedded server: The first directory of the specified module path /home/eduda/Projects/wildfly/dist/target/wildfly-A/modules is invalid or does not exist. {code} *Users impact:* Behavior of non-modular class loading \[1\] has changed. This change can break user's automation or tests. *Blocker priority* was chosen because this is change in behavior against Wildfly 12. *Technical details* When the embed-server is started for the second time, following warning is logged. {code} 2018-05-28 08:10:57,621 WARN [org.jboss.as.embedded] (main) WFLYEMB0145: The module loader has already been configured. Changing the module.path property will have no effect {code} It seems that the change in behavior was caused by commit \[2\]. \[1\] http://wildfly.org/news/2015/03/13/Offline-CLI/#classloading \[2\] https://github.com/wildfly/wildfly-core/commit/22f3956f1adcdf8b1cb11e24f2...