anchor.diff:              updateUserId.setString(3, role);
               updateUserId.setInt(4, personId);
               updateUserId.setString(5, oldUser);
  -            results.add(updateUserId.executeUpdate());
  -            System.err.println("5");
  +            updateUserId.executeUpdate();
               
               // update the salts table with new userId
               updateSaltsUid = mCon.prepareStatement("UPDATE SALTS set USER_NAME=? where USER_NAME=?");
               updateSaltsUid.setString(1, uid);
               updateSaltsUid.setString(2, oldUser);
  -            results.add(updateSaltsUid.executeUpdate());
  -            System.err.println("6");
  +            updateSaltsUid.executeUpdate();
               
               // Remove old userID 
               PreparedStatement delOldUsr = mCon.prepareStatement("DELETE FROM USERS where USER_NAME=?");
               delOldUsr.setString(1, oldUser);
  -            results.add(delOldUsr.executeUpdate());
  -            System.err.println("7");
  +            delOldUsr.executeUpdate();
               delOldUsr.close();
             }
             
  
positive.code:         checkUserIdExists.setString(2, oldUser);
          ResultSet rset = checkUserIdExists.executeQuery();
          if(rset.next()) {
            //Notify user that the new user name is already taken! And go back to previous page.
            out.println("Your new username:" + uid + " already exists! \n Try again please.");
            System.err.println("New USER_NAME already exists!");
          } else if (!rset.next()) {
            
            // Password hash and salt will be set to original if no new password.
            if(newPass.isEmpty()) {
                System.err.println("0");
                
                // get old password, salt, and email
                updatePassword = mCon.prepareStatement("select U.PASSWORD, S.SALT, P.email from USERS U, SALTS S, PERSONS P where U.USER_NAME=S.USER_NAME and P.PERSON_ID=U.PERSON_ID and U.USER_NAME=?");
                updatePassword.setString(1, oldUser);
  
negative.code:       PreparedStatement updateSaltsUid = null;
        PreparedStatement updatePassword = null;
        PreparedStatement updateSalt = null;
        
        // actually log in and perform statements
        try{              
          mCon = DriverManager.getConnection(mUrl, mUser, mPass);
          oldAutoCommitVal = mCon.getAutoCommit();
          mCon.setAutoCommit(Boolean.FALSE);
          
          // if this returns a table with 1 row, that new username is invalid!
          checkUserIdExists = mCon.prepareStatement("select USER_NAME from USERS where USER_NAME=? AND USER_NAME<>?");
  