convert zip byte[] to unzip byte[]

You can use ZipInputStream and ZipOutputStream (in the package java.util.zip) to read and write from ZIP files.

If you have the data in a byte array, you can let these read from a ByteArrayInputStream or write to a ByteArrayOutputStream pointing to your input and output byte arrays.

public static List<ZipEntry> extractZipEntries(byte[] content) throws IOException {
    List<ZipEntry> entries = new ArrayList<>();
   
    ZipInputStream zipStream = new ZipInputStream(new ByteArrayInputStream(content));
    ZipEntry entry = null;
    while ((entry = zipStream.getNextEntry()) != null)
    {
        System.out.println( "entry: " + entry );
        ZipOutputStream stream= new ZipOutputStream(new FileOutputStream(new File("F:\\ssd\\wer\\"+entry.getName())));
        stream.putNextEntry(entry);
    }
    zipStream.close();
   
    return entries;
}