appendFile, err := lock.Open(dst, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0o666)
	if err != nil {
		return err
	}
	defer appendFile.Close()

	srcFile, err := lock.Open(src, os.O_RDONLY, 0o666)
	if err != nil {
		return err
	}
	defer srcFile.Close()
	_, err = io.Copy(appendFile, srcFile)
	return err

        assertEquals("Non-existent field should return empty array", 0, values.length);
    }

    @Test
    public void test_getFieldValues_emptyList() throws Exception {
        Map<String, Object> document = new HashMap<>();
        document.put("field", new ArrayList<>());

        String[] values = parser.getFieldValues(document, "field");

        assertEquals("Empty list should return empty array", 0, values.length);
    }

  @Override
  protected <E extends Comparable<? super E>> SortedSet<E> of() {
    return ImmutableSortedSet.of();
  }

  @Override
  protected <E extends Comparable<? super E>> SortedSet<E> of(E e) {
    return ImmutableSortedSet.of(e);
  }

  @Override
  protected <E extends Comparable<? super E>> SortedSet<E> of(E e1, E e2) {
    return ImmutableSortedSet.of(e1, e2);
  }

  @Override

                    return delegate;
                  }

                  @Override
                  public boolean removeAll(Collection<?> c) {
                    return Iterators.removeAll(iterator(), c);
                  }

                  @Override
                  public boolean retainAll(Collection<?> c) {
                    return Iterators.retainAll(iterator(), c);
                  }

        }
        return Gson().fromJson(response.body(), klass)
    }

    private
    fun getUserInfo(login: String): GitHubUser {
        val uri = "https://api.github.com/users/$login"
        return invokeGitHubApi(uri, GitHubUser::class.java)
    }

    private

      new CacheLoader<Key, String>() {
        @Override
        public String load(Key key) {
          return key.toString();
        }
      };

  private CacheBuilderFactory factoryWithAllKeyStrengths() {
    return new CacheBuilderFactory()
        .withKeyStrengths(ImmutableSet.of(STRONG, Strength.WEAK))

    return doAssertThrows(expectedThrowable, supplier, /* userPassedSupplier= */ true);
  }

  @CanIgnoreReturnValue
  static <T extends Throwable> T assertThrows(
      Class<T> expectedThrowable, ThrowingRunnable runnable) {
    return doAssertThrows(
        expectedThrowable,
        () -> {
          runnable.run();
          return null;
        },

    return doAssertThrows(expectedThrowable, supplier, /* userPassedSupplier= */ true);
  }

  @CanIgnoreReturnValue
  static <T extends Throwable> T assertThrows(
      Class<T> expectedThrowable, ThrowingRunnable runnable) {
    return doAssertThrows(
        expectedThrowable,
        () -> {
          runnable.run();
          return null;
        },

    /**
     * Gets the class realm hosting the Maven core.
     *
     * @return The class realm hosting the Maven core, never {@code null}.
     */
    ClassRealm getCoreRealm();

    /**
     * Gets the class realm exposing the Maven API. This is basically a restricted view on the Maven core realm.
     *
     * @return The class realm exposing the Maven API, never {@code null}.
     */
    ClassRealm getMavenApiRealm();

        // Recursively discover modules
        discoverModules(startDirectory, rootPom, pomMap);

        return pomMap;
    }

    /**
     * Loads a POM file as a domtrip Document.
     *
     * @param pomPath the path to the POM file
     * @return the parsed Document
     * @throws IOException if there's an error reading the file
     * @throws DomTripException if there's an error parsing the XML