An example failure caused by the differing orders is: -

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Test set: org.jboss.remotingjmx.SecurityClientTest
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Tests run: 4, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 1.984 sec <<< FAILURE!
testAnonymousAuthentication(org.jboss.remotingjmx.SecurityClientTest) Time elapsed: 0.116 sec <<< ERROR!
javax.security.sasl.SaslException: Cannot get userid/password [Caused by javax.security.auth.callback.UnsupportedCallbackException]
at com.sun.security.sasl.ClientFactoryImpl.getUserInfo(ClientFactoryImpl.java:157)
at com.sun.security.sasl.ClientFactoryImpl.createSaslClient(ClientFactoryImpl.java:94)
at org.jboss.remoting3.remote.ClientConnectionOpenListener$Capabilities$1.run(ClientConnectionOpenListener.java:352)