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Questions tagged [jzlib]

a pure Java port of zlib, supporting the deflate and zlib compressed data formats.

Compared to Java's native implementation of deflate and zlib in java.util.zip, JZlib offers better control on flushing, which is needed for interactive use. Also it does no native methods, which often gives a better performance (java.util.zip uses native calls (JNI) to a zlib embedded in the VM).

JZlib is based on version 1.1.3. of zlib. The data formats are specified in RFC 1950 and RFC 1951 (deflate). JZlib does not directly support the gzip or zip data formats, but these can be implemented on top of the deflate implementation in JZLib.

JZlib was created by JCraft Inc, and released as open source, under a BSD-like license. It can be used by to optionally compress SSH connections.

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How to compute good preset dictionary for deflate compression

I have an opportunity to preset dictionary for deflate compression. It makes sense in my case, because data to be compressed is relatively small 1kb-3kb and I have a large sample of representative examples. Data to be compressed consists of…
Jarek Odzga
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Is Android InflaterInputStream same as popular ZLIB Windows library?

I'm trying to uncompress data that was compressed using the ZLIB library written by Jean-loup Gailly back in the 1990s. I think it is a popular library (I see a lot of programs that ship the zlib32.dll file it uses) so I hope someone will be…
eselk
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jzlib 1.0.7: ArrayOutOfBoundException in ZOutputStream.write()

I have a simple test case producing a sure ArrayOutOfBoundException in jzlib 1.0.7 depending on the data subsequently written to one and the same instance of ZOutputStream. Stacktrace: java.lang.ArrayIndexOutOfBoundsException: 587 at…
René
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How to match ZLib stream between VBA 6/VBA 7and Java 8?

We are being able to do the following. In VBA 6/ VBA 7: Refer a 32 bit zlibwapi.dll (VBA 6) or 64 bit zlibwapi.dll (VBA 7). Invoke compress() or compress2() methods to generate compressed streams Invoke uncompress() and uncompress2() methods to…
sidnc86
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Zlib is unable to extract a compress String in java, compression is done in python

Im trying to decompress a string in java, the string is compress in python with base64 encoding. I tried a day to resolve the issue, The file can decode easily online and also in python. Find similar post that people have trouble compressing and…
Aqeel Haider
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Zlib inflate works differently to C?

I am trying to zlib inflate a byte array in java, however I am not getting the Z_STREAM_END returned when I inflate it. I have the code exactly the same as some C code I viewed which worked with the same data, sliding window and other parameters (I…
Lucas Smith
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Unable to inflate a buffer deflated with java.util.zip.Deflater using Apache MINA compression filter

This test: import java.util.zip.Deflater; import org.apache.mina.core.buffer.IoBuffer; import org.apache.mina.filter.support.Zlib; import org.junit.*; public class ZlibTest { private Deflater deflater = null; private Zlib inflater =…
Alexey Romanov
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Creating gzip file using jzlib

I am trying to create a gzip file using jzlib which is an open source. The Java GZIPOutputStream is a bit problemtic, the CPU got higher and never released. The problem with the JZlib that the file cannot be open by winrar, it seems like missing…
Kfir Bloch
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Json Decode and Parse Error node.js

Hi I'm trying to do this const request = require('request'); const zlib = require('zlib'); const opts = { uri: 'http://data.githubarchive.org/2015-01-01-15.json.gz', encoding: null, }; request.get(opts, function(error, response, body) { …
Rayees
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