kdcReqBody.setCName( getPrincipalName( "baduser" ) );
kdcReqBody.setSName( getPrincipalName( "hnelson" ) );
kdcReqBody.setRealm( "EXAMPLE.COM" );
kdcReqBody.setEType( config.getEncryptionTypes() );
KdcReq message = new AsReq();
message.setKdcReqBody( kdcReqBody );
handler.messageReceived( session, message );
Object msg = session.getMessage();
assertEquals( "session.getMessage() instanceOf", KrbError.class, msg.getClass() );