question: private byte [ ] ungzip ( byte [ ] body ) { ByteArrayInputStream bytein = new ByteArrayInputStream ( body ) ; try ( GZIPInputStream gzin = new GZIPInputStream ( bytein ) ; ByteArrayOutputStream byteout = new ByteArrayOutputStream ( ) ) { int res = 0 ; byte buf [ ] = new byte [ 1024 ] ; while ( res >= 0 ) { res = gzin . read ( buf , 0 , buf . length ) ; if ( res > 0 ) { byteout . write ( buf , 0 , res ) ; } } byte uncompressed [ ] = byteout . toByteArray ( ) ; return uncompressed ; } catch ( IOException e ) { } return null ; }
target:  Decompresses using GZIP Algorithm. 