NPE when trying to remove an EJB subsystem channel-creation-options resource

Issue

• When trying to remove EJB subsystem through CLI, it is giving NullPointerException:

/subsystem=ejb3/service=remote:remove()
The results:
{
    "outcome" => "failed",
    "failure-description" => "WFLYCTL0158: Operation handler failed: java.lang.NullPointerException",
    "rolled-back" => true
}

• In server.log:

ERROR [org.jboss.as.controller.management-operation] (management-handler-thread - 4) WFLYCTL0013: Operation ("remove") failed - address: ([
    ("subsystem" => "ejb3"),
    ("service" => "remote"),
    ("channel-creation-options" => "MAX_OUTBOUND_MESSAGES")
]): java.lang.NullPointerException
    at org.jboss.as.controller.OperationContextImpl.readResourceFromRoot(OperationContextImpl.java:894)
    at org.jboss.as.controller.OperationContextImpl.readResourceFromRoot(OperationContextImpl.java:884)
    at org.jboss.as.controller.RestartParentResourceHandlerBase.getModel(RestartParentResourceHandlerBase.java:216)
    at org.jboss.as.controller.RestartParentResourceHandlerBase.access$000(RestartParentResourceHandlerBase.java:39)
    at org.jboss.as.controller.RestartParentResourceHandlerBase$1.execute(RestartParentResourceHandlerBase.java:66)
    at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:982)
    at org.jboss.as.controller.AbstractOperationContext.processStages(AbstractOperationContext.java:726)
    at org.jboss.as.controller.AbstractOperationContext.executeOperation(AbstractOperationContext.java:450)
    at org.jboss.as.controller.OperationContextImpl.executeOperation(OperationContextImpl.java:1402)
    at org.jboss.as.controller.ModelControllerImpl.internalExecute(ModelControllerImpl.java:418)
    at org.jboss.as.controller.ModelControllerImpl.lambda$execute$1(ModelControllerImpl.java:243)
...