case 'E':
            return new LogMessage(LogLevel.ERROR, message);
        case 'F':
            return new LogMessage(LogLevel.FATAL, message);
        default:
            throw new ClIllegalArgumentException("messageCode", "ECL0009", asArray(messageCode, "messageCode : " + messageCode));
        }
    }

    /**
     * Initializes the {@link Logger}.
     */

        if (!iterator.hasNext()) {
          iterator = iterable.iterator();
        }
        return iterator.next();
      }

      @Override
      public void remove() {
        throw new UnsupportedOperationException();
      }
    };
  }

  static <T extends @Nullable Object> T get(Iterator<T> iterator, int position) {
    for (int i = 0; i < position; i++) {
      iterator.next();

        writeHeaders(response);
        try (PrintWriter out = new PrintWriter(new OutputStreamWriter(response.getOutputStream(), enc))) {
            out.print(text);
        } catch (final IOException e) {
            throw new IORuntimeException(e);
        }
    }

    /**
     * Writes custom headers to the HTTP response.
     * @param response The HTTP servlet response.
     */

  }

  @CollectionFeature.Require(absent = SUPPORTS_ADD)
  @CollectionSize.Require(absent = ZERO)
  public void testAdd_unsupportedPresent() {
    try {
      assertFalse("add(present) should return false or throw", collection.add(e0()));
    } catch (UnsupportedOperationException tolerated) {
    }
    expectUnchanged();
  }

  @CollectionFeature.Require(
      value = {SUPPORTS_ADD, ALLOWS_NULL_VALUES},

        !equivalence.equivalent(itemInfo.value, unrelatedInfo.value));
  }

  private void assertWithTemplate(String template, Item<T> item, Item<T> other, boolean condition) {
    if (!condition) {
      throw new AssertionFailedError(
          template
              .replace("$RELATIONSHIP", relationshipName)
              .replace("$HASH", hashName)
              .replace("$ITEM", itemReporter.reportItem(item))

  }

  @CollectionFeature.Require(absent = SUPPORTS_ADD)
  @CollectionSize.Require(absent = ZERO)
  public void testAdd_unsupportedPresent() {
    try {
      assertFalse("add(present) should return false or throw", collection.add(e0()));
    } catch (UnsupportedOperationException tolerated) {
    }
    expectUnchanged();
  }

  @CollectionFeature.Require(
      value = {SUPPORTS_ADD, ALLOWS_NULL_VALUES},

  }

  @ListFeature.Require(absent = SUPPORTS_ADD_WITH_INDEX)
  public void testAddAllAtIndex_unsupportedNothing() {
    try {
      assertFalse(
          "addAll(n, nothing) should return false or throw",
          getList().addAll(0, emptyCollection()));
    } catch (UnsupportedOperationException tolerated) {
    }
    expectUnchanged();
  }

  @ListFeature.Require(SUPPORTS_ADD_WITH_INDEX)

     * Update the file ID after successful create response
     * @param newFileId the new 16-byte file ID
     */
    public void updateFileId(byte[] newFileId) {
        if (newFileId.length != 16) {
            throw new IllegalArgumentException("File ID must be 16 bytes");
        }
        System.arraycopy(newFileId, 0, this.fileId, 0, 16);
    }

    @Override
    public String toString() {

                        .orElse(() -> {
                            if (isApiRequest && ComponentUtil.getFessConfig().getApiAccessTokenRequiredAsBoolean()) {
                                throw new InvalidAccessTokenException("invalid_token", "Access token is requried.");
                            }
                            if (!hasAccessToken || roleSet.isEmpty()) {

    @Test
    @DisplayName("Methods should handle empty buffer")
    void testMethodsWithEmptyBuffer() {
        // Arrange
        byte[] emptyBuffer = new byte[0];

        // Act & Assert - These should not throw exceptions
        assertEquals(0, response.writeSetupWireFormat(emptyBuffer, 0));
        assertEquals(0, response.writeParametersWireFormat(emptyBuffer, 0));
        assertEquals(0, response.writeDataWireFormat(emptyBuffer, 0));