return OptionalEntity.empty();
    }

    /**
     * Retrieves a paginated list of character mapping items.
     *
     * @param offset the starting index for pagination (0-based)
     * @param size the maximum number of items to return
     * @return a PagingList containing the requested subset of mapping items
     */
    @Override
    public synchronized PagingList<CharMappingItem> selectList(final int offset, final int size) {

                    if (encoded.length() > fessConfig.getCookieSearchParameterMaxLengthAsInteger()) {
                        logger.warn("Encoded search parameters exceed the maximum cookie length: {} > {}. Skipping cookie storage.",
                                encoded.length(), fessConfig.getCookieSearchParameterMaxLengthAsInteger());
                        return;
                    }

			<groupId>com.google.guava</groupId>
			<artifactId>guava</artifactId>
			<version>${guava.version}</version>
			<exclusions>
				<exclusion>
					<groupId>org.codehaus.mojo</groupId>
					<artifactId>animal-sniffer-annotations</artifactId>
				</exclusion>
				<exclusion>
					<groupId>com.google.j2objc</groupId>
					<artifactId>j2objc-annotations</artifactId>
				</exclusion>
				<exclusion>