ClassLoader oldLoader = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader( realm );
ClassRealm oldRealm = container.setLookupRealm( realm );
DatabaseFactoryConfigurator configurator = (DatabaseFactoryConfigurator) container.lookup(
DatabaseFactoryConfigurator.class.getName(), configRoleHint, realm );
configurator.configure( params );
DataManagementTool manager =
(DataManagementTool) container.lookup( DataManagementTool.class.getName(), toolRoleHint, realm );