question: synchronized void addConnection ( int id , String url , String user ) { try { managementDbAdd . setInt ( 1 , id ) ; managementDbAdd . setString ( 2 , url ) ; managementDbAdd . setString ( 3 , user ) ; managementDbAdd . execute ( ) ; } catch ( SQLException e ) { DbException . traceThrowable ( e ) ; } }
target:  Add a connection to the management database.