void setValueReference(ValueReference<K, V> valueReference);

  /** Returns the next entry in the chain. */
  @CheckForNull
  ReferenceEntry<K, V> getNext();

  /** Returns the entry's hash. */
  int getHash();

  /** Returns the key for this entry. */
  @CheckForNull
  K getKey();

  /*
   * Used by entries that use access order. Access entries are maintained in a doubly-linked list.

        return getPath("WEB-INF/", "view", names);
    }

    public static Path getDictionaryPath(final String... names) {
        return getPath("WEB-INF/", "dict", names);
    }

    public static Path getThumbnailPath(final String... names) {
        return getPath("WEB-INF/", "thumbnails", names);
    }

    public static Path getSitePath(final String... names) {
        return getPath("WEB-INF/", "site", names);

            return false;
        }
        FileModelSource other = (FileModelSource) obj;
        return getPath().equals(other.getPath());
    }

    @Override
    public int hashCode() {
        return getPath().hashCode();
    }

     * @throws Exception
     */
    @Test
    public void testGetLast() throws Exception {
        try {
            list.getLast();
            fail();
        } catch (final NoSuchElementException ex) {
            System.out.println(ex);
        }
        list.addLast("1");
        assertThat(list.getLast(), is("1"));
    }

    /**
     * @throws Exception
     */
    @Test

    }

    /**
     * @throws Exception
     */
    @Test
    public void testReadUTF8() throws Exception {
        assertThat(FileUtil.readUTF8(getPath("hoge_utf8.txt")), is("あ"));
    }

    private String getPath(final String fileName) {
        return getClass().getName().replace('.', '/').replaceFirst(getClass().getSimpleName(), fileName);
    }

                    throw new DictionaryException("Failed to update " + dictFile.getPath());
                }
            } catch (final IOException e) {
                throw new DictionaryException("Failed to update " + dictFile.getPath(), e);
            }

        }).orElse(() -> {
            throw new DictionaryException(dictFile.getPath() + " does not exist.");
        });
    }

        return getPathForLocalArtifact(artifact);
    }

    public String getPathForLocalMetadata(Metadata metadata) {
        return getPath(metadata, "local");
    }

    public String getPathForRemoteMetadata(Metadata metadata, RemoteRepository repository, String context) {
        return getPath(metadata, getRepositoryKey(repository, context));
    }

    String getRepositoryKey(RemoteRepository repository, String context) {

            File file = new File(path);
            if (file.isAbsolute()) {
                // path was already absolute, just normalize file separator and we're done
                result = file.getPath();
            } else if (file.getPath().startsWith(File.separator)) {
                // drive-relative Windows path, don't align with project directory but with drive root
                result = file.getAbsolutePath();
            } else {

            return null;
        } else if (file.isAbsolute()) {
            return file;
        } else if (file.getPath().startsWith(File.separator)) {
            // drive-relative Windows path
            return file.getAbsoluteFile();
        } else {
            return Paths.get(baseDirectory, file.getPath()).normalize().toFile();
        }
    }

    }

    @Override
    public E getFirst() {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.getFirst();
    }

    @Override
    public E getLast() {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.getLast();
    }

    @Override
    public @Nullable E peekFirst() {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.peekFirst();
    }