If you search on google on DummyResourceAdapter, you'll find (at least currently) a lot of open administration consoles of JBoss, the JMX-console. These consoles should not be available to the open internet, but I guess someone forgot the close them.
JMX MBean View
|MBean Name:||Domain Name:||jboss.management.local|
|MBean Java Class:||org.jboss.management.j2ee.WebModule|
I haven't tried and I've sent a mail to webmaster@domain - but I'm slightly curious.