We just upgraded from 7.8 to 8.4. We are using BaseX in a JBoss multi-threaded application. Something has changed with ClientSession. I have log4j at trace level and the server is started but when I attempt to create a ClientSession in Java nothing happens. static final int BASEX_SERVER_PORT = 1990; static final String BASEX_USER = "admin"; static final String BASEX_PASSWORD = "admin"; static final String BASEX_HOST = "localhost"; try { // get server status boolean serverstarted = BaseXServer.ping(BASEX_HOST, BASEX_SERVER_PORT); // server started? if (!serverstarted) { instance.basexlog.trace("BaseXDictionary: BaseX: Start BaseX server"); // no-> create a new instance using server and client ports // BaseXServer server = new BaseXServer("-p" + BASEX_SERVER_PORT); } else { // yes-> log the event instance.basexlog.trace("BaseXDictionary: BaseX: BaseX server already started"); } // start initialization process instance.basexlog.debug("BaseXDictionary: BaseX: Server started"); // create client session for managing database construction instance.mapperDBSession = new ClientSession(BaseXDictionary.BASEX_HOST, BaseXDictionary.BASEX_SERVER_PORT, BaseXDictionary.BASEX_USER, BaseXDictionary.BASEX_PASSWORD); This next log4j output is never seen in the log file instance.basexlog.trace("BaseXDictionary: BaseX: Client Session created "); Has the default username/password been changed due to security reasons? Great product. Thanks Carl R Bondeson IT Analyst 3 Information Technology Connecticut Department of Public Health 410 Capitol Ave Hartford, CT 06134 Phone: 860-509-7434 carl.bondeson@ct.gov<mailto:carl.bondeson@ct.gov> [logosmall]