If you ran a test like AccountPreferencesTest.java and get an output like this in your console
Mai 29, 2013 12:20:13 PM de.fu_berlin.inf.dpp.stf.client.Configuration loadProperties
INFO: loading internal property file
Mai 29, 2013 12:20:13 PM de.fu_berlin.inf.dpp.stf.client.Configuration loadProperties
WARNING: could not find internal property file: de/fu_berlin/inf/dpp/stf/client/configuration.properties
Mai 29, 2013 12:20:13 PM de.fu_berlin.inf.dpp.stf.client.tester.TesterFactory createTester
INFO: initializing bot for name 'ALICE'
Mai 29, 2013 12:20:13 PM de.fu_berlin.inf.dpp.stf.client.tester.TesterFactory createTester
INFO: initializing bot for name 'BOB'
Mai 29, 2013 12:20:13 PM de.fu_berlin.inf.dpp.stf.client.tester.TesterFactory createTester
INFO: initializing bot for name 'CARL'
Mai 29, 2013 12:20:13 PM de.fu_berlin.inf.dpp.stf.client.tester.TesterFactory createTester
INFO: initializing bot for name 'DAVE'
you need to set up the local configuration file.