addedPredecessor = true;
    } else if (previousValue instanceof PredAndSucc) {
      // Restore previous PredAndSucc object.
      adjacentNodeValues.put(node, previousValue);
      addedPredecessor = false;
    } else if (previousValue != PRED) { // successor
      // Do NOT use method parameter value 'unused'. In directed graphs, successors store the value.
      adjacentNodeValues.put(node, new PredAndSucc(previousValue));

        RenderDataUtil.register(data, "displayCreateLink", !crawlingConfigHelper.getAllWebConfigList(false, false, false, null).isEmpty());
        // restore from pager
        copyBeanToBean(webAuthPager, form, op -> op.include("id"));
    }

    // ===================================================================================

     */
    protected void searchPaging(final RenderData data, final SearchForm form) {
        RenderDataUtil.register(data, "badWordItems", badWordService.getBadWordList(badWordPager)); // page navi

        // restore from pager
        copyBeanToBean(badWordPager, form, op -> op.include("id"));
    }

    // ===================================================================================

    protected void searchPaging(final RenderData data, final SearchForm form) {
        RenderDataUtil.register(data, "relatedQueryItems", relatedQueryService.getRelatedQueryList(relatedQueryPager)); // page navi

        // restore from pager
        copyBeanToBean(relatedQueryPager, form, op -> op.include("term", "queries"));
    }

    // ===================================================================================

     */
    protected void searchPaging(final RenderData data, final SearchForm form) {
        RenderDataUtil.register(data, "groupItems", groupService.getGroupList(groupPager)); // page navi

        // restore from pager
        copyBeanToBean(groupPager, form, op -> op.include("id"));
    }

    // ===================================================================================

		restoreStatus restoreObjStatus
		ondisk        bool
	}{
		{
			// restore in progress
			restoreStatus: ongoingRestoreObj(),
			ondisk:        false,
		},
		{
			// restore completed but expired
			restoreStatus: completedRestoreObj(time.Now().Add(-time.Hour)),
			ondisk:        false,
		},
		{
			// restore completed
			restoreStatus: completedRestoreObj(time.Now().Add(time.Hour)),

3. Export the node's certificate:
   `keytool -export -alias test-node -keystore test-node.jks -storepass keypass -file test-node.crt`
4. Import the node certificate in the client's keystore:
   `keytool -import -alias test-node -keystore test-client.jks -storepass keypass -file test-node.crt -noprompt`
5. Export the client's certificate:
   `keytool -export -alias test-client -keystore test-client.jks -storepass keypass -file test-client.crt`

    protected void searchPaging(final RenderData data, final SearchForm form) {
        RenderDataUtil.register(data, "accessTokenItems", accessTokenService.getAccessTokenList(accessTokenPager)); // page navi

        // restore from pager
        copyBeanToBean(accessTokenPager, form, op -> op.include("id"));
    }

    // ===================================================================================

     */
    protected void searchPaging(final RenderData data, final SearchForm form) {
        RenderDataUtil.register(data, "userItems", userService.getUserList(userPager)); // page navi
        // restore from pager
        copyBeanToBean(userPager, form, op -> op.include("id"));
    }

    private void registerForms(final RenderData data) {

        // page navi
        RenderDataUtil.register(data, "charMappingItemItems", charMappingService.getCharMappingList(form.dictId, charMappingPager));

        // restore from pager
        BeanUtil.copyBeanToBean(charMappingPager, form, op -> {
            op.exclude(Constants.PAGER_CONVERSION_RULE);
        });
    }