if (form.pn != null) {
            int pageNumber = form.pn;
            if (pageNumber > 0) {
                pageNumber = pageNumber + move;
                if (pageNumber < 1) {
                    pageNumber = 1;
                }
                start = (pageNumber - 1) * form.getPageSize();
            }
        }
        form.start = start;

    }

    @Override
    public void paging(int pageSize, int pageNumber) {
        if (pageSize <= 0) {
            throwPagingPageSizeNotPlusException(pageSize, pageNumber);
        }
        fetchFirst(pageSize);
        xfetchPage(pageNumber);
    }

    protected void throwPagingPageSizeNotPlusException(int pageSize, int pageNumber) {

        form.initialize();
        Integer pageNumber = form.pn;
        if (pageNumber != null && pageNumber > 0) {
            pageNumber = pageNumber + move;
            if (pageNumber < 1) {
                pageNumber = 1;
            }
            form.start = (pageNumber - 1) * form.getPageSize();
        }
        return doSearch(form);
    }

/**
 * @author codelibs
 * @author Keiichi Watanabe
 */
public class EditForm {

    public String webConfigName;

    public String fileConfigName;

    @ValidateTypeFailure
    public String pageNumber;

    @ValidateTypeFailure
    public Integer crudMode;

    @Required
    @Size(max = 1000)
    public String id;

    @Required
    public String url;

    @Required

				</a></li>
			</c:if>
			<c:forEach var="pageNumber" varStatus="s" items="${pageNumberList}">
				<li
					<c:choose>
						<c:when test="${pageNumber < currentPageNumber - 2 || pageNumber > currentPageNumber + 2}">class="page-item d-none d-sm-inline"</c:when>
						<c:when test="${pageNumber == currentPageNumber && pageNumber >= currentPageNumber - 2 && pageNumber <= currentPageNumber + 2}">class="page-item active"</c:when>

				</a></li>
			</c:if>
			<c:forEach var="pageNumber" varStatus="s" items="${pageNumberList}">
				<li
					<c:choose>
						<c:when test="${pageNumber < currentPageNumber - 2 || pageNumber > currentPageNumber + 2}">class="page-item d-none d-sm-inline"</c:when>
						<c:when test="${pageNumber == currentPageNumber && pageNumber >= currentPageNumber - 2 && pageNumber <= currentPageNumber + 2}">class="page-item active"</c:when>

        return asListHtml();
    }

    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse list(final OptionalThing<Integer> pageNumber, final SearchForm form) {
        pageNumber.ifPresent(num -> {
            relatedContentPager.setCurrentPageNumber(pageNumber.get());
        }).orElse(() -> {
            relatedContentPager.setCurrentPageNumber(0);
        });

        return asListHtml();
    }

    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse list(final OptionalThing<Integer> pageNumber, final SearchForm form) {
        pageNumber.ifPresent(num -> {
            labelTypePager.setCurrentPageNumber(pageNumber.get());
        }).orElse(() -> {
            labelTypePager.setCurrentPageNumber(0);
        });

    }

    private
    fun getMergedContributorPullRequests(pageNumber: Int): List<GitHubPullRequest> {
        val uri = "https://api.github.com/search/issues?q=is:pr+is:merged+repo:gradle/gradle+label:%22from:contributor%22&sort=updated&order=desc&per_page=$pageSize&page=$pageNumber"
        return invokeGitHubApi(uri, GitHubPullRequestSearchResult::class.java).items
    }

        return asListHtml();
    }

    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse list(final OptionalThing<Integer> pageNumber, final SearchForm form) {
        pageNumber.ifPresent(num -> {
            accessTokenPager.setCurrentPageNumber(pageNumber.get());
        }).orElse(() -> {
            accessTokenPager.setCurrentPageNumber(0);
        });