*/
static void destroyMBean(UserDatabase userDatabase)
throws Exception {
String mname = createManagedName(userDatabase);
ManagedBean managed = registry.findManagedBean(mname);
if (managed == null) {
return;
}
String domain = managed.getDomain();
if (domain == null)
domain = mserver.getDefaultDomain();
ObjectName oname = createObjectName(domain, userDatabase);
if( mserver.isRegistered(oname) )
mserver.unregisterMBean(oname);