import java.io.InputStreamReader;
import java.io.Reader;
import java.io.StringReader;
import java.util.Base64;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;

import org.apache.commons.lang3.StringUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.io.ReaderUtil;

     */
    protected byte[] gzipDecompress(final byte[] compressed) {
        try (final ByteArrayInputStream bis = new ByteArrayInputStream(compressed);
                final GZIPInputStream gzipIn = new GZIPInputStream(bis);
                final ByteArrayOutputStream bos = new ByteArrayOutputStream()) {
            final byte[] buffer = new byte[1024];
            int len;