private Uid doUpdate() throws IOException, JSchException {

    if (uid == null || StringUtil.isBlank(uid.getUidValue())) {
      throw new IllegalArgumentException("No Uid attribute provided in the attributes");
    }

    LOG.info("Update user: "******"Wrong object class");
    }

    if (objectClass.equals(ObjectClass.ACCOUNT)) {
      if (!EvaluateCommandsResultOutput.evaluateUserOrGroupExists(
          unixConnection.execute(
              UnixConnector.getCommandGenerator().userExists(uid.getUidValue())))) {
        throw new ConnectorException("User " + uid + " do not exists");
      }
      for (Attribute attr : attrs) {
        if (attr.is(Name.NAME) || attr.is(Uid.NAME)) {
          newUserName = (String) attr.getValue().get(0);
        } else if (attr.is(OperationalAttributes.PASSWORD_NAME)) {
          password = Utilities.getPlainPassword((GuardedString) attr.getValue().get(0));
        } else if (attr.is(OperationalAttributes.ENABLE_NAME)) {
          status = Boolean.parseBoolean(attr.getValue().get(0).toString());
        } else if (attr.is(configuration.getCommentAttribute())) {
          comment = attr.getValue().get(0).toString();
        } else if (attr.is(configuration.getShellAttribute())) {
          shell = (String) attr.getValue().get(0).toString();
        } else if (attr.is(configuration.getHomeDirectoryAttribute())) {
          homeDirectory = (String) attr.getValue().get(0).toString();
        }
      }
      unixConnection.execute(
          UnixConnector.getCommandGenerator()
              .updateUser(
                  uid.getUidValue(), newUserName, password, status, comment, shell, homeDirectory));
      //            unixConnection.execute("mv /home/" + uid.getUidValue() + " /home/" +
      // newUserName);
      unixConnection.execute(
          UnixConnector.getCommandGenerator().moveHomeDirectory(uid.getUidValue(), newUserName));
      if (!status) {
        unixConnection.execute(UnixConnector.getCommandGenerator().lockUser(uid.getUidValue()));
      } else {
        unixConnection.execute(UnixConnector.getCommandGenerator().unlockUser(uid.getUidValue()));
      }
      if (StringUtil.isNotBlank(newUserName) && StringUtil.isNotEmpty(newUserName)) {
        unixConnection.execute(
            UnixConnector.getCommandGenerator().updateGroup(uid.getUidValue(), newUserName));
      }
    } else if (objectClass.equals(ObjectClass.GROUP)) {
      if (!EvaluateCommandsResultOutput.evaluateUserOrGroupExists(
          unixConnection.execute(UnixConnector.getCommandGenerator().groupExists(newUserName)))) {
        throw new ConnectorException("Group do not exists");
      }
      unixConnection.execute(
          UnixConnector.getCommandGenerator().updateGroup(uid.getUidValue(), newUserName));
    }
    return uid;
  }
    /**
     * Add the attribute to the builder
     *
     * @param oclass
     * @param attr
     * @param options
     */
    public void setAttribute(ObjectClass oclass, Attribute attr, OperationOptions options) {
      log.ok("Account: getSQLParam");

      // At first, couldn't do anything to null fields except make sql call
      // updating tables directly. Bug#9005 forced us to find oracle constants
      // to do this.
      // I couldn't null out fields with Oracle constants thru callablestatement,
      // instead, collect all null fields and make a preparedstatement call to
      // api with null fields.

      // Handle the special attributes first to use them in decission later

      if (attr.is(Name.NAME)) {
        // cstmt1.setString(1, identity.toUpperCase());
        final String userName = AttributeUtil.getAsStringValue(attr).toUpperCase();
        setSqlValue(USER_NAME, userName);
      } else if (attr.is(Uid.NAME)) {
        // cstmt1.setString(1, identity.toUpperCase());
        final String userName = AttributeUtil.getAsStringValue(attr).toUpperCase();
        setSqlValue(USER_NAME, userName);
      } else if (StringUtil.isNotBlank(cfg.getPasswordAttribute())
          && attr.is(cfg.getPasswordAttribute())) {
        /*
         * cstmt1.setString(3, (String)accountAttrChanges.get(UNENCRYPT_PWD));
         * only set 'password_date' if password changed
         * if ((String)accountAttrChanges.get(UNENCRYPT_PWD) != null) {
         *   cstmt1.setDate(9, new java.sql.Date(
         *                    (new java.util.Date().getTime()) ));
         */
        if (AttributeUtil.getSingleValue(attr) != null) {
          resourcePassword = AttributeUtil.getGuardedStringValue(attr);
        }
      } else if (attr.is(OperationalAttributes.PASSWORD_NAME)) {
        /*
         * cstmt1.setString(3, (String)accountAttrChanges.get(UNENCRYPT_PWD));
         * only set 'password_date' if password changed
         * if ((String)accountAttrChanges.get(UNENCRYPT_PWD) != null) {
         *   cstmt1.setDate(9, new java.sql.Date(
         *                    (new java.util.Date().getTime()) ));
         */
        if (AttributeUtil.getSingleValue(attr) != null) {
          password = AttributeUtil.getGuardedStringValue(attr);
        }
      } else if (attr.is(OperationalAttributes.PASSWORD_EXPIRED_NAME) || attr.is(EXP_PWD)) {
        /* ------ adapter code ----------
         * Boolean expirePassword = null;
         * if ( ((String)accountAttrChanges.get("OPERATION")).equalsIgnoreCase("CREATE") ) {
         *    if (accountAttrChanges.containsKey(EXP_PWD)) {
         *      expirePassword = ((Boolean)accountAttrChanges.get(EXP_PWD));
         *      if (expirePassword.booleanValue()) {
         *          nullFields.append(",x_last_logon_date => FND_USER_PKG.null_date");
         *          nullFields.append(",x_password_date => FND_USER_PKG.null_date");
         *      } else {
         *          cstmt1.setDate(7, new java.sql.Date(
         *                               (new java.util.Date().getTime()) ));
         *      }
         *    } else {
         *      cstmt1.setDate(7, new java.sql.Date(
         *                              (new java.util.Date().getTime()) ));
         *    }
         * } else if ( ((String)accountAttrChanges.get("OPERATION")).equalsIgnoreCase("UPDATE") ) {
         *   if (accountAttrChanges.containsKey(EXP_PWD)) {
         *      expirePassword = ((Boolean)accountAttrChanges.get(EXP_PWD));
         *      if (expirePassword.booleanValue()) {
         *          nullFields.append(",x_last_logon_date => FND_USER_PKG.null_date");
         *          nullFields.append(",x_password_date => FND_USER_PKG.null_date");
         *      }
         *    }
         * }
         *
         * Handle expiring password differently in create vs update
         * On create if expirePassword is false/null, set last_logon_date to today
         * On update if expirePassword is false/null, do nothing
         * On both is if expirePassword is true, null out last_logon_date, and password_date
         */
        boolean passwordExpired = false;
        if (AttributeUtil.getSingleValue(attr) != null) {
          passwordExpired = AttributeUtil.getBooleanValue(attr);
        }
        if (passwordExpired) {
          setNullValue(LAST_LOGON_DATE, NULL_DATE);
          log.ok("passwordExpired: {0} => NULL_DATE", LAST_LOGON_DATE);
          setNullValue(PWD_DATE, NULL_DATE);
          log.ok("append also {0} => NULL_DATE", PWD_DATE);
        } else if (create) {
          setSqlValue(LAST_LOGON_DATE, currentDate);
          log.ok(
              "create account with not expired password {0} => {1}", LAST_LOGON_DATE, currentDate);
        }

      } else if (attr.is(OWNER)) {
        // cstmt1.setString(2, (String)accountAttrChanges.get(OWNER));
        final String owner = AttributeUtil.getAsStringValue(attr);
        setSqlValue(OWNER, owner);
        log.ok("{0} = > {1}, Types.VARCHAR", OWNER, owner);
      } else if (attr.is(START_DATE) || attr.is(OperationalAttributes.ENABLE_DATE_NAME)) {
        /* ------ adapter code ----------
         * start_date 'not null' type
         * if (accountAttrChanges.containsKey(START_DATE)) {
         *   if (accountAttrChanges.get(START_DATE) != null) {
         *      cstmt1.setTimestamp(5, java.sql.Timestamp.valueOf((String)accountAttrChanges.get(START_DATE)) );
         *   }
         * }
         */
        final String dateString = AttributeUtil.getAsStringValue(attr);
        if (dateString != null) {
          Timestamp tms = stringToTimestamp(dateString); // stringToTimestamp(dateString);
          setSqlValue(START_DATE, tms);
          log.ok("{0} => {1} , Types.TIMESTAMP", START_DATE, tms);
        }

      } else if (attr.is(END_DATE) || attr.is(OperationalAttributes.DISABLE_DATE_NAME)) {
        /* ------ adapter code ----------
         * if (accountAttrChanges.containsKey(END_DATE)) {
         *   if (accountAttrChanges.get(END_DATE) == null) {
         *     nullFields.append(",x_end_date => FND_USER_PKG.null_date");
         *   } else if ( ((String)accountAttrChanges.get(END_DATE)).equalsIgnoreCase(SYSDATE)) {
         *    // force sysdate into end_date
         *     nullFields.append(",x_end_date => sysdate");
         *  } else {
         *     cstmt1.setTimestamp(6, java.sql.Timestamp.valueOf(
         *             (String)accountAttrChanges.get(END_DATE)) );
         *  }
         * }
         */
        if (AttributeUtil.getSingleValue(attr) == null) {
          setNullValue(END_DATE, NULL_DATE);
          log.ok("NULL {0} => NULL_DATE : continue", END_DATE);
        } else {
          final String dateString = AttributeUtil.getAsStringValue(attr);
          if (SYSDATE.equalsIgnoreCase(dateString)) {
            setNullValue(END_DATE, SYSDATE);
            log.ok("sysdate value in {0} => {1} : continue", END_DATE, SYSDATE);
          } else {
            Timestamp tms = stringToTimestamp(dateString);
            setSqlValue(END_DATE, tms);
            log.ok("{0} => {1}, Types.TIMESTAMP", END_DATE, tms);
          }
        }
      } else if (attr.is(DESCR)) {
        /*  ------ adapter code ----------
         * if (accountAttrChanges.containsKey(DESCR)) {
         *   if (accountAttrChanges.get(DESCR) == null) {
         *      nullFields.append(",x_description => FND_USER_PKG.null_char");
         *   } else {
         *      cstmt1.setString(8, (String)accountAttrChanges.get(DESCR));
         *   }
         * }
         */
        if (AttributeUtil.getSingleValue(attr) == null) {
          setNullValue(DESCR, NULL_CHAR);
          log.ok("NULL {0} => NULL_CHAR", DESCR);
        } else {
          final String descr = AttributeUtil.getAsStringValue(attr);
          setSqlValue(DESCR, descr);
          log.ok("{0} => {1}, Types.VARCHAR", DESCR, descr);
        }

      } else if (attr.is(PWD_ACCESSES_LEFT)) {
        /*  ------ adapter code ----------
         * if (accountAttrChanges.containsKey(PWD_ACCESSES_LEFT)) {
         *   if ( (accountAttrChanges.get(PWD_ACCESSES_LEFT) == null) ||
         *      ( ((String)accountAttrChanges.get(PWD_ACCESSES_LEFT)).length() == 0) ) {
         *      nullFields.append(",x_password_accesses_left => FND_USER_PKG.null_number");
         *   } else {
         *      cstmt1.setInt(10, (new Integer((String)accountAttrChanges.get(PWD_ACCESSES_LEFT)).intValue()) );
         *   }
         * }
         */
        if (AttributeUtil.getSingleValue(attr) == null) {
          setNullValue(PWD_ACCESSES_LEFT, NULL_NUMBER);
          log.ok("NULL {0} => NULL_NUMBER", PWD_ACCESSES_LEFT);
        } else {
          final String accessLeft = AttributeUtil.getAsStringValue(attr);
          setSqlValue(PWD_ACCESSES_LEFT, new Integer(accessLeft));
          log.ok("{0} => {1}, Types.INTEGER", DESCR, accessLeft);
        }

      } else if (attr.is(PWD_LIFESPAN_ACCESSES)) {
        /*  ------ adapter code ----------
         * if (accountAttrChanges.containsKey(PWD_LIFESPAN_ACCESSES)) {
         *      if ( (accountAttrChanges.get(PWD_LIFESPAN_ACCESSES) == null)  ||
         *          ( ((String)accountAttrChanges.get(PWD_LIFESPAN_ACCESSES)).length() == 0) ) {
         *           nullFields.append(",x_password_lifespan_accesses => FND_USER_PKG.null_number");
         *      } else {
         *          cstmt1.setInt(11, (new Integer((String)accountAttrChanges.get(PWD_LIFESPAN_ACCESSES)).intValue()) );
         *      }
         * }
         */
        if (AttributeUtil.getSingleValue(attr) == null) {
          setNullValue(PWD_LIFESPAN_ACCESSES, NULL_NUMBER);
          log.ok("NULL {0} => NULL_NUMBER", PWD_LIFESPAN_ACCESSES);
        } else {
          final String lifeAccess = AttributeUtil.getAsStringValue(attr);
          setSqlValue(PWD_LIFESPAN_ACCESSES, new Integer(lifeAccess));
          log.ok("{0} => {1}, Types.INTEGER", PWD_LIFESPAN_ACCESSES, lifeAccess);
        }

      } else if (attr.is(PWD_LIFESPAN_DAYS)) {
        /*  ------ adapter code ----------
         * if (accountAttrChanges.containsKey(PWD_LIFESPAN_DAYS)) {
         *   if ( (accountAttrChanges.get(PWD_LIFESPAN_DAYS) == null) ||
         *      ( ((String)accountAttrChanges.get(PWD_LIFESPAN_DAYS)).length() == 0) ) {
         *          nullFields.append(",x_password_lifespan_days => FND_USER_PKG.null_number");
         *      } else {
         *          cstmt1.setInt(12, (new Integer((String)accountAttrChanges.get(PWD_LIFESPAN_DAYS)).intValue()) );
         *   }
         * }
         */
        if (AttributeUtil.getSingleValue(attr) == null) {
          setNullValue(PWD_LIFESPAN_DAYS, NULL_NUMBER);
          log.ok("NULL {0} => NULL_NUMBER", PWD_LIFESPAN_DAYS);
        } else {
          final String lifeDays = AttributeUtil.getAsStringValue(attr);
          setSqlValue(PWD_LIFESPAN_DAYS, new Integer(lifeDays));
          log.ok("{0} => {1}, Types.INTEGER", PWD_LIFESPAN_DAYS, lifeDays);
        }

      } else if (attr.is(EMP_ID)) {
        /*  ------ adapter code ----------
         * if (accountAttrChanges.containsKey(EMP_ID)) {
         *  if ( (accountAttrChanges.get(EMP_ID) == null)  ||
         *      ( ((String)accountAttrChanges.get(EMP_ID)).length() == 0) ) {
         *          nullFields.append(",x_employee_id => FND_USER_PKG.null_number");
         *      } else {
         *          cstmt1.setInt(13, (new Integer((String)accountAttrChanges.get(EMP_ID)).intValue()) );
         *      }
         *  }
         */
        if (AttributeUtil.getSingleValue(attr) == null) {
          setNullValue(EMP_ID, NULL_NUMBER);
          log.ok("NULL {0} => NULL_NUMBER", EMP_ID);
        } else {
          final String empId = AttributeUtil.getAsStringValue(attr);
          setSqlValue(EMP_ID, new Integer(empId));
          log.ok("{0} => {1}, Types.INTEGER", EMP_ID, empId);
        }

      } else if (attr.is(EMAIL)) {
        /*  ------ adapter code ----------
         * if (accountAttrChanges.containsKey(EMAIL)) {
         *   if (accountAttrChanges.get(EMAIL) == null) {
         *      nullFields.append(",x_email_address => FND_USER_PKG.null_char");
         *   } else {
         *      cstmt1.setString(14, (String)accountAttrChanges.get(EMAIL));
         *   }
         * }
         */
        if (AttributeUtil.getSingleValue(attr) == null) {
          setNullValue(EMAIL, NULL_CHAR);
          log.ok("NULL {0} => NULL_CHAR", EMAIL);
        } else {
          final String email = AttributeUtil.getAsStringValue(attr);
          setSqlValue(EMAIL, email);
          log.ok("{0} => {1}, Types.VARCHAR", EMAIL, email);
        }

      } else if (attr.is(FAX)) {
        /*  ------ adapter code ----------
         * if (accountAttrChanges.containsKey(FAX)) {
         *   if (accountAttrChanges.get(FAX) == null) {
         *      nullFields.append(",x_fax => FND_USER_PKG.null_char");
         *   } else {
         *      cstmt1.setString(15, (String)accountAttrChanges.get(FAX));
         *   }
         *  }
         */
        if (AttributeUtil.getSingleValue(attr) == null) {
          setNullValue(FAX, NULL_CHAR);
          log.ok("NULL {0} => NULL_CHAR", FAX);
        } else {
          final String fax = AttributeUtil.getAsStringValue(attr);
          setSqlValue(FAX, fax);
          log.ok("{0} => {1}, Types.VARCHAR", FAX, fax);
        }

      } else if (attr.is(CUST_ID)) {
        /*  ------ adapter code ----------
         * if (accountAttrChanges.containsKey(CUST_ID)) {
         *  if ( (accountAttrChanges.get(CUST_ID) == null) ||
         *   ( ((String)accountAttrChanges.get(CUST_ID)).length() == 0) ) {
         *     nullFields.append(",x_customer_id => FND_USER_PKG.null_number");
         *  } else {
         *     cstmt1.setInt(16, (new Integer((String)accountAttrChanges.get(CUST_ID)).intValue()) );
         *  }
         * }
         */
        if (AttributeUtil.getSingleValue(attr) == null) {
          setNullValue(CUST_ID, NULL_NUMBER);
          log.ok("NULL {0} => NULL_NUMBER", CUST_ID);
        } else {
          final String custId = AttributeUtil.getAsStringValue(attr);
          setSqlValue(CUST_ID, new Integer(custId));
          log.ok("{0} => {1}, Types.INTEGER", CUST_ID, custId);
        }

      } else if (attr.is(SUPP_ID)) {
        /*  ------ adapter code ----------
         * if (accountAttrChanges.containsKey(SUPP_ID)) {
         *   if ( (accountAttrChanges.get(SUPP_ID) == null) ||
         *   ( ((String)accountAttrChanges.get(SUPP_ID)).length() == 0) ) {
         *       nullFields.append(",x_supplier_id => FND_USER_PKG.null_number");
         *   } else {
         *       cstmt1.setInt(17, (new Integer((String)accountAttrChanges.get(SUPP_ID)).intValue()) );
         *   }
         * }
         */
        if (AttributeUtil.getSingleValue(attr) == null) {
          setNullValue(SUPP_ID, NULL_NUMBER);
          log.ok("NULL {0} => NULL_NUMBER", SUPP_ID);
        } else {
          final String suppId = AttributeUtil.getAsStringValue(attr);
          setSqlValue(SUPP_ID, new Integer(suppId));
          log.ok("{0} => {1}, Types.INTEGER", SUPP_ID, suppId);
        }
      }
    }