On the Openfire server, delete a Room and Give a Reason
The following Exception occurs around 50% of the time.
URL in Browser is: https://localhost:9091/muc-room-delete.jsp?csrf=LQxTG65GYGgcbdU&roomJID=delete%40conference.of471.xxxx&reason=Dom+2&alternateJID=&delete=Destroy+Room
Exception:
java.lang.AbstractMethodError
at org.jivesoftware.openfire.muc.MUCEventDispatcher.occupantLeft(MUCEventDispatcher.java:68)
at org.jivesoftware.openfire.muc.MUCRoom.removeOccupantRole(MUCRoom.java:1283)
at org.jivesoftware.openfire.muc.MUCRoom.destroyRoom(MUCRoom.java:1338)
at org.jivesoftware.openfire.admin.muc_002droom_002ddelete_jsp._jspService(muc_002droom_002ddelete_jsp.java:181)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:71)