public int add(@ParametricNullness E element, int occurrences) {
    throw new UnsupportedOperationException();
  }

  @CanIgnoreReturnValue
  @Override
  public final boolean remove(@Nullable Object element) {
    return remove(element, 1) > 0;
  }

  @CanIgnoreReturnValue
  @Override
  public int remove(@Nullable Object element, int occurrences) {
    throw new UnsupportedOperationException();
  }

  @CanIgnoreReturnValue

      @Override
      public V load(K key) {
        throw e;
      }
    };
  }

  /** Returns a {@link CacheLoader} that throws the given exception for every request. */
  static <K, V> CacheLoader<K, V> exceptionLoader(Exception e) {
    checkNotNull(e);
    return new CacheLoader<K, V>() {
      @Override
      public V load(K key) throws Exception {
        throw e;
      }
    };
  }

              mutateDelegate();
              return returnValue;
            } catch (InvocationTargetException e) {
              throw e.getCause();
            } catch (IllegalAccessException e) {
              throw new AssertionError(e);
            }
          }

          private void mutateDelegate() {
            allStates.add(ImmutableList.copyOf(delegate));

        if (repositories == null) {
            return null;
        }
        HashSet<RemoteRepository> set = new HashSet<>(repositories);
        if (repositories.size() != set.size()) {
            throw new IllegalArgumentException(
                    "Repository list contains duplicate entries. Each repository must be unique based on its ID and URL. "

        ClassLoader cloader = Thread.currentThread().getContextClassLoader();

        URL resourceUrl = cloader.getResource(resource);

        if (resourceUrl == null) {
            throw new FileNotFoundException("Unable to find: " + resource);
        }

        return new File(resourceUrl.toURI());
    }

    protected ArtifactRepository getLocalRepository() throws Exception {

                    .map(ProjectActivation.ProjectActivationSettings::selector)
                    .collect(Collectors.joining(", "));
            if (!requiredSelectors.isEmpty()) {
                throw new MavenExecutionException(
                        "The requested required projects " + requiredSelectors + " do not exist.", request.getPom());
            } else {

   * {@code firstEntry}, you may wish to override {@code firstKey} to forward to this
   * implementation.
   */
  protected K standardFirstKey() {
    Entry<K, V> entry = firstEntry();
    if (entry == null) {
      throw new NoSuchElementException();
    } else {
      return entry.getKey();
    }
  }

  @Override
  public @Nullable Entry<K, V> lastEntry() {
    return delegate().lastEntry();
  }

  /**

   * {@code firstEntry}, you may wish to override {@code firstKey} to forward to this
   * implementation.
   */
  protected K standardFirstKey() {
    Entry<K, V> entry = firstEntry();
    if (entry == null) {
      throw new NoSuchElementException();
    } else {
      return entry.getKey();
    }
  }

  @Override
  public @Nullable Entry<K, V> lastEntry() {
    return delegate().lastEntry();
  }

  /**

            if (values.length > 2) {
                throw new InvalidQueryException(messages -> messages.addErrorsInvalidQuerySortValue(UserMessages.GLOBAL_PROPERTY_KEY, text),
                        "Invalid sort field: " + termQuery);
            }
            final String sortField = values[0];
            if (!getQueryFieldConfig().isSortField(sortField)) {
                throw new InvalidQueryException(

            PacGroup[] groups = {};
            if (groupPointer != 0) {
                final int realGroupCount = pacStream.readInt();
                if (realGroupCount != groupCount) {
                    throw new PACDecodingException("Invalid number of groups in PAC expect" + groupCount + " have " + realGroupCount);
                }
                groups = new PacGroup[groupCount];