gt:         if (!exceptions.isEmpty()) {
context: /*
   * Copyright (c) 2003, 2019, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
   * particular file as subject to the "Classpath" exception as provided
   * by Oracle in the LICENSE file that accompanied this code.
   *
   * This code is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   * version 2 for more details (a copy is included in the LICENSE file that
   * accompanied this code).
   *
   * You should have received a copy of the GNU General Public License version
   * 2 along with this work; if not, write to the Free Software Foundation,
   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  
  package jdk.javadoc.internal.doclets.toolkit.builders;
  
  import java.util.Set;
  import java.util.SortedSet;
  
  import javax.lang.model.element.PackageElement;
  import javax.lang.model.element.TypeElement;
  
  import jdk.javadoc.internal.doclets.toolkit.Content;
  import jdk.javadoc.internal.doclets.toolkit.DocFilesHandler;
  import jdk.javadoc.internal.doclets.toolkit.DocletException;
  import jdk.javadoc.internal.doclets.toolkit.PackageSummaryWriter;
  
  
  /**
   * Builds the summary for a given package.
   *
   *  <p><b>This is NOT part of any supported API.
   *  If you write code that depends on this, you do so at your own risk.
   *  This code and its internal interfaces are subject to change or
   *  deletion without notice.</b>
   */
  public class PackageSummaryBuilder extends AbstractBuilder {
  
      /**
       * The package being documented.
       */
      private final PackageElement packageElement;
  
      /**
       * The doclet specific writer that will output the result.
       */
      private final PackageSummaryWriter packageWriter;
  
      /**
       * Construct a new PackageSummaryBuilder.
       *
       * @param context  the build context.
       * @param pkg the package being documented.
       * @param packageWriter the doclet specific writer that will output the
       *        result.
       */
      private PackageSummaryBuilder(Context context,
              PackageElement pkg,
              PackageSummaryWriter packageWriter) {
          super(context);
          this.packageElement = pkg;
          this.packageWriter = packageWriter;
      }
  
      /**
       * Construct a new PackageSummaryBuilder.
       *
       * @param context  the build context.
       * @param pkg the package being documented.
       * @param packageWriter the doclet specific writer that will output the
       *        result.
       *
       * @return an instance of a PackageSummaryBuilder.
       */
      public static PackageSummaryBuilder getInstance(Context context,
              PackageElement pkg, PackageSummaryWriter packageWriter) {
          return new PackageSummaryBuilder(context, pkg, packageWriter);
      }
  
      /**
       * Build the package summary.
       *
       * @throws DocletException if there is a problem while building the documentation
       */
      @Override
      public void build() throws DocletException {
          if (packageWriter == null) {
              //Doclet does not support this output.
              return;
          }
          buildPackageDoc();
      }
  
      /**
       * Build the package documentation.
       *
       * @throws DocletException if there is a problem while building the documentation
       */
      protected void buildPackageDoc() throws DocletException {
          Content contentTree = packageWriter.getPackageHeader(utils.getPackageName(packageElement));
  
          buildContent();
  
          packageWriter.addPackageFooter();
          packageWriter.printDocument(contentTree);
          DocFilesHandler docFilesHandler = configuration
                  .getWriterFactory()
                  .getDocFilesHandler(packageElement);
          docFilesHandler.copyDocFiles();
      }
  
      /**
       * Build the content for the package.
       *
       * @throws DocletException if there is a problem while building the documentation
       */
      protected void buildContent() throws DocletException {
          Content packageContentTree = packageWriter.getContentHeader();
  
          buildPackageDescription(packageContentTree);
          buildPackageTags(packageContentTree);
          buildSummary(packageContentTree);
  
          packageWriter.addPackageContent(packageContentTree);
      }
  
      /**
       * Build the package summary.
       *
       * @param packageContentTree the package content tree to which the summaries will
       *                           be added
       * @throws DocletException if there is a problem while building the documentation
       */
      protected void buildSummary(Content packageContentTree) throws DocletException {
          Content summaryContentTree = packageWriter.getSummaryHeader();
  
          buildInterfaceSummary(summaryContentTree);
          buildClassSummary(summaryContentTree);
          buildEnumSummary(summaryContentTree);
          buildRecordSummary(summaryContentTree);
          buildExceptionSummary(summaryContentTree);
          buildErrorSummary(summaryContentTree);
          buildAnnotationTypeSummary(summaryContentTree);
  
          packageContentTree.add(packageWriter.getPackageSummary(summaryContentTree));
      }
  
      /**
       * Build the summary for the interfaces in this package.
       *
       * @param summaryContentTree the summary tree to which the interface summary
       *                           will be added
       */
      protected void buildInterfaceSummary(Content summaryContentTree) {
          SortedSet<TypeElement> ilist = utils.isSpecified(packageElement)
                          ? utils.getTypeElementsAsSortedSet(utils.getInterfaces(packageElement))
                          : configuration.typeElementCatalog.interfaces(packageElement);
          SortedSet<TypeElement> interfaces = utils.filterOutPrivateClasses(ilist, configuration.javafx);
          if (!interfaces.isEmpty()) {
              packageWriter.addInterfaceSummary(interfaces, summaryContentTree);
          }
      }
  
      /**
       * Build the summary for the classes in this package.
       *
       * @param summaryContentTree the summary tree to which the class summary will
       *                           be added
       */
      protected void buildClassSummary(Content summaryContentTree) {
          SortedSet<TypeElement> clist = utils.isSpecified(packageElement)
              ? utils.getTypeElementsAsSortedSet(utils.getOrdinaryClasses(packageElement))
              : configuration.typeElementCatalog.ordinaryClasses(packageElement);
          SortedSet<TypeElement> classes = utils.filterOutPrivateClasses(clist, configuration.javafx);
          if (!classes.isEmpty()) {
              packageWriter.addClassSummary(classes, summaryContentTree);
          }
      }
  
      /**
       * Build the summary for the enums in this package.
       *
       * @param summaryContentTree the summary tree to which the enum summary will
       *                           be added
       */
      protected void buildEnumSummary(Content summaryContentTree) {
          SortedSet<TypeElement> elist = utils.isSpecified(packageElement)
              ? utils.getTypeElementsAsSortedSet(utils.getEnums(packageElement))
              : configuration.typeElementCatalog.enums(packageElement);
          SortedSet<TypeElement> enums = utils.filterOutPrivateClasses(elist, configuration.javafx);
          if (!enums.isEmpty()) {
              packageWriter.addEnumSummary(enums, summaryContentTree);
          }
      }
  
      /**
       * Build the summary for the records in this package.
       *
       * @param summaryContentTree the summary tree to which the record summary will
       *                           be added
       */
      protected void buildRecordSummary(Content summaryContentTree) {
          SortedSet<TypeElement> rlist = utils.isSpecified(packageElement)
                  ? utils.getTypeElementsAsSortedSet(utils.getRecords(packageElement))
                  : configuration.typeElementCatalog.records(packageElement);
          SortedSet<TypeElement> records = utils.filterOutPrivateClasses(rlist, configuration.javafx);
          if (!records.isEmpty()) {
              packageWriter.addRecordSummary(records, summaryContentTree);
          }
      }
  
      /**
       * Build the summary for the exceptions in this package.
       *
       * @param summaryContentTree the summary tree to which the exception summary will
       *                           be added
       */
      protected void buildExceptionSummary(Content summaryContentTree) {
          Set<TypeElement> iexceptions =
              utils.isSpecified(packageElement)
                  ? utils.getTypeElementsAsSortedSet(utils.getExceptions(packageElement))
                  : configuration.typeElementCatalog.exceptions(packageElement);
          SortedSet<TypeElement> exceptions = utils.filterOutPrivateClasses(iexceptions,
                  configuration.javafx);
  