}
            return new RequestParameter[0];
        }).orElse(new RequestParameter[0]);
    }

    /**
     * Decompresses GZIP-compressed data.
     *
     * @param compressed The GZIP-compressed data to decompress
     * @return Decompressed data
     * @throws IORuntimeException if decompression fails
     */
    protected byte[] gzipDecompress(final byte[] compressed) {

    }

    /**
     * Compresses an IPv6 address string to its canonical compressed form.
     * For example, "0:0:0:0:0:0:0:1" becomes "::1"
     *
     * @param ipv6Address the IPv6 address string to compress
     * @return the compressed IPv6 address string
     */
    protected static String compressIPv6(final String ipv6Address) {
        if (ipv6Address == null || ipv6Address.isEmpty()) {
            return ipv6Address;

import java.io.BufferedInputStream;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;

import org.apache.commons.compress.archivers.ArchiveInputStream;
import org.apache.commons.compress.archivers.ArchiveStreamFactory;
import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

package org.codelibs.fess.crawler.extractor.impl;

import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;

import org.apache.commons.compress.archivers.ArchiveInputStream;
import org.apache.commons.compress.archivers.ArchiveStreamFactory;
import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

import org.apache.commons.compress.archivers.ArchiveStreamFactory;
import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
import org.apache.commons.compress.archivers.tar.TarArchiveOutputStream;
import org.apache.commons.compress.compressors.CompressorStreamFactory;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

			<fileset dir="${plugins.dir}">
				<include name="configsync/commons-codec-*" />
				<include name="dataformat/commons-codec-*" />
				<include name="dataformat/commons-collections4-*" />
				<include name="dataformat/commons-compress-*" />
				<include name="dataformat/commons-math3-*" />
				<include name="dataformat/curvesapi-*" />
				<include name="dataformat/orangesignal-csv-*" />
				<include name="dataformat/poi-*" />

```

## Test Requirements

### Dependencies:
- JUnit 4.x
- DBFlute UTFlute (PlainTestCase)
- Apache POI (for MS Office tests)
- Apache Commons Compress (for archive tests)

### Test Resources:
- `extractor/msoffice/test.doc`
- `extractor/msoffice/test.xls`
- `extractor/msoffice/test.ppt`
- `extractor/test.txt`
- `extractor/zip/test.zip`

				<executions>
					<execution>
						<phase>compile</phase>
						<goals>
							<goal>compress</goal>
						</goals>
					</execution>
				</executions>
				<configuration>
					<nosuffix>true</nosuffix>
					<webappDirectory>${project.build.directory}/${project.build.finalName}-compress</webappDirectory>
					<excludes>
						<exclude>**/*min.js</exclude>
						<exclude>**/*min.css</exclude>

				"application/x-bzip",
				"application/x-bzip2",
				"application/x-cdlink",
				"application/x-chat",
				"application/x-chess-pgn",
				"application/x-chrome-package",
				"application/x-compress",
				"application/x-corelpresentations",
				"application/x-cpio",
				"application/x-csh",
				"application/x-debian-package",
				"application/x-dex",
				"application/x-director",
				"application/x-doom",

    <magic priority="50">
      <match value="Cr24" type="string" offset="0"/>
    </magic>
    <glob pattern="*.crx"/>
  </mime-type>

  <mime-type type="application/x-compress">
    <magic priority="50">
      <match value="\037\235" type="string" offset="0"/>
    </magic>
    <glob pattern="*.z"/>
  </mime-type>

  <mime-type type="application/x-corelpresentations">