import static com.google.common.collect.testing.testers.ReflectionFreeAssertThrows.assertThrows;
import static java.util.Arrays.asList;
import static java.util.Collections.emptyList;
import static java.util.Collections.singletonList;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;

                    }
                    final LabelTypeBhv labelTypeBhv = ComponentUtil.getComponent(LabelTypeBhv.class);
                    labelTypeList = labelIdList.isEmpty() ? Collections.emptyList() : labelTypeBhv.selectList(cb -> {
                        cb.query().setId_InScope(labelIdList);
                        cb.query().addOrderBy_SortOrder_Asc();

      }
    }
  }

  // See newDirectExecutorService javadoc for unusual behavior of this method.
  @Override
  public List<Runnable> shutdownNow() {
    shutdown();
    return Collections.emptyList();
  }

  @Override
  public boolean isTerminated() {
    synchronized (lock) {
      return shutdown && runningTasks == 0;
    }
  }

  @Override

            docMetaCQ = new DocMetaCQ();
        }
        return docMetaCQ;
    }

    public List<FieldSortBuilder> getFieldSortBuilderList() {
        return fieldSortBuilderList == null ? Collections.emptyList() : fieldSortBuilderList;
    }

    public boolean hasQueries() {
        return queryBuilderList != null && !queryBuilderList.isEmpty();
    }

    public QueryBuilder getQuery() {

        this.message = (message != null) ? message : "";
        this.reference = (reference != null) ? reference : "";
        this.children = (children != null) ? Collections.unmodifiableList(children) : Collections.emptyList();
    }

    public Throwable getException() {
        return exception;
    }

    public String getMessage() {
        return message;
    }

    public String getReference() {

        if (dependencyManagement != null) {
            return new MappedList<>(dependencyManagement.getDependencies(), this::toDependency);
        }
        return Collections.emptyList();
    }

    @Override
    public boolean isTopProject() {
        return getBasedir().equals(getSession().getTopDirectory());
    }

    @Override
    public boolean isRootProject() {

     *
     * @return The problems that caused this exception, never {@code null}.
     */
    public List<ModelProblem> getProblems() {
        if (result == null) {
            return Collections.emptyList();
        }
        return Collections.unmodifiableList(result.getProblems());
    }

    private static String toMessage(ModelBuildingResult result) {

            }
        }
    }

    @Override
    public Collection<? extends Metadata> prepare(Collection<? extends Artifact> artifacts) {
        return Collections.emptyList();
    }

    @Override
    public Artifact transformArtifact(Artifact artifact) {
        return artifact;
    }

    @Override

        } else {
            webConfigList = Collections.emptyList();
        }
        final List<FileConfig> fileConfigList;
        if (runAll || fileConfigIdList != null) {
            fileConfigList = ComponentUtil.getCrawlingConfigHelper().getFileConfigListByIds(fileConfigIdList);
        } else {
            fileConfigList = Collections.emptyList();
        }

            charMappingPager.setPageNumberList(charMappingList.createPageNumberList());

            return (List<CharMappingItem>) charMappingList;
        }).orElse(Collections.emptyList());
    }

    public OptionalEntity<CharMappingFile> getCharMappingFile(final String dictId) {
        return dictionaryManager.getDictionaryFile(dictId).filter(CharMappingFile.class::isInstance)