try (Reader reader = java.nio.file.Files.newBufferedReader(file, UTF_8)) {
        StringBuilder builder = new StringBuilder();
        for (int c = reader.read(); c != -1; c = reader.read()) {
          builder.append((char) c);
        }
        return builder.toString();
      }
    }
  }

		// One path segment length is > 255 chars long.
		{"path/to/my/object0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001", errFileNameTooLong},
		// path length is > 1024 chars long.

        public Appendable append(@Nullable CharSequence csq, int start, int end)
            throws IOException {
          throw new IOException();
        }

        @Override
        public Appendable append(char c) throws IOException {
          throw new IOException();
        }
      };

  private static void checkResult(Joiner joiner, Iterable<Integer> parts, String expected) {

     * @throws EmptyArgumentException
     *             If the argument is <code>null</code> or an empty array.
     */
    public static void assertArgumentNotEmpty(final String argName, final char[] argValue) {
        if (ArrayUtil.isEmpty(argValue)) {
            throw new EmptyArgumentException(argName, "ECL0011", asArray(argName));
        }
    }

    /**

    public static final String SLACK_WEBHOOK_URLS_PROPERTY = "slack.webhook.urls";

    /** Property key for Google Chat webhook URLs configuration. */
    public static final String GOOGLE_CHAT_WEBHOOK_URLS_PROPERTY = "google.chat.webhook.urls";

    /** Property key for browser locale usage in search configuration. */

      }
    }
  }

  @AndroidIncompatible // slow
  @GwtIncompatible // Floats.tryParse
  public void testTryParseAllCodePoints() {
    // Exercise non-ASCII digit test cases and the like.
    char[] tmp = new char[2];
    for (int i = Character.MIN_CODE_POINT; i < Character.MAX_CODE_POINT; i++) {
      Character.toChars(i, tmp, 0);
      checkTryParse(String.copyValueOf(tmp, 0, Character.charCount(i)));
    }
  }

      }
    }
  }

  @AndroidIncompatible // slow
  @GwtIncompatible // Floats.tryParse
  public void testTryParseAllCodePoints() {
    // Exercise non-ASCII digit test cases and the like.
    char[] tmp = new char[2];
    for (int i = Character.MIN_CODE_POINT; i < Character.MAX_CODE_POINT; i++) {
      Character.toChars(i, tmp, 0);
      checkTryParse(String.copyValueOf(tmp, 0, Character.charCount(i)));
    }
  }

            }
            WebApiUtil.setError(500, longMessage.toString());

            // Test with special characters in message
            WebApiUtil.setError(400, "Error with special chars: àáâãäåæçèéêë ñ 中文 🚀");

        } catch (Exception e) {
            fail("Error handling should work with edge cases: " + e.getMessage());
        }
    }

    public void test_method_parameter_validation() {

        }

        @Test
        @DisplayName("Should calculate size for Unicode characters")
        void testSizeWithUnicodeCharacters() {
            // Unicode characters still count as single chars in Java
            String path = "\\\\server\\共享\\路径";
            buffer = new DfsReferralRequestBuffer(path, 3);

            int expectedSize = 4 + 2 * path.length();

              this.locale.weekLabel = options.locale.weekLabel;

            if (typeof options.locale.customRangeLabel === 'string'){
                //Support unicode chars in the custom range name.
                var elem = document.createElement('textarea');
                elem.innerHTML = options.locale.customRangeLabel;
                var rangeHtml = elem.value;