From my reading of the source code I suspect that the problem is a result of the code changes introduced by WFCORE-2849 and that org.jboss.as.connector.subsystems.resourceadapters.RaRemove.java now needs an update around line 156. I did a search of this Jira project but was unable to find any other tickets referring to RaRemove that are current.

Unable to remove an installed resource adapter ---------------------------------------------- Key: WFLY-9281 URL: https://issues.jboss.org/browse/WFLY-9281 Project: WildFly Issue Type: Bug Components: JCA Affects Versions: 11.0.0.CR1 Reporter: John Huntley Assignee: Stefano Maestri Attachments: wf11-ra-error.txt Running a :remove operation for a defined resource adapter fails with error WFLYCTL0123.