jzlib | re-implementation of zlib in pure Java | Compression library

by ymnk Java Version: 1.1.3 License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | jzlib Summary

jzlib is a Java library typically used in Utilities, Compression applications. jzlib has no bugs, it has build file available and it has high support. However jzlib has 1 vulnerabilities and it has a Non-SPDX License. You can download it from GitHub, Maven.

JZlib is a re-implementation of zlib in pure Java. The first and final aim for hacking this stuff is to add the packet compression support to pure Java SSH systems.

Support

Quality

Security

License

Reuse

Support

jzlib has a highly active ecosystem.

It has 181 star(s) with 91 fork(s). There are 38 watchers for this library.

It had no major release in the last 12 months.

There are 12 open issues and 6 have been closed. On average issues are closed in 22 days. There are no pull requests.

It has a negative sentiment in the developer community.

The latest version of jzlib is 1.1.3

Quality

jzlib has 0 bugs and 0 code smells.

Security

jzlib has 1 vulnerability issues reported (0 critical, 0 high, 1 medium, 0 low).

jzlib code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

jzlib has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

jzlib releases are not available. You will need to build from source code and install.

Deployable package is available in Maven.

Build file is available. You can build the component from source.

Installation instructions are not available. Examples and code snippets are available.

jzlib saves you 2787 person hours of effort in developing the same functionality from scratch.

It has 6032 lines of code, 317 functions and 40 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed jzlib and discovered the below as its top functions. This is intended to give you an instant insight into jzlib implemented functionality, and help decide if they suit your requirements.

Closes the output stream
Writes an array of bytes to the compressed output stream
Writes a byte array to the output stream
Set the input buffer
Close output stream
Flush the stream
Computes the optimal bit lengths for a block
Compress the input stream
Skips the specified number of bytes
Fills the buffer
Read bytes from the stream
Reads header
Fills the specified buffer
Skip n bytes
Gets the available in bytes
Flushes the compressed output stream
Reads the header
Deflate the end of the stream
Inflate end of stream

Get all kandi verified functions for this library.

jzlib Key Features

No Key Features are available at this moment for jzlib.

jzlib Examples and Code Snippets

No Code Snippets are available at this moment for jzlib.

Community Discussions

Trending Discussions on jzlib

How to recreate JDK tar.gz file after added a certificate

Zlib inflate works differently to C?

How to get Spring Cloud Config dependencies to resolve from parent configuration in Gradle multi-module build?

QUESTION

How to recreate JDK tar.gz file after added a certificate

Asked 2021-Nov-10 at 14:51

My organization requires all JDK to include a specific certificate.

I therefore followed these steps:

downloaded the JDK as jdk-17-linux-x64.tar.gz (170M)
unzip jdk-17-linux-x64.tar.gz
Added our certificate using keytool
created a new tarball jdk-17-linux-x64.tar.gz from the extracted contents (300M)

I then uploaded the new tarball to our Jenkins server, but I receive the following error:

...

ANSWER

Answered 2021-Nov-10 at 14:51

Based on the exception message, it looks like the file that Hudson is trying to extract is not a valid tar.gz file. As the regenerated file is roughly the same size as the uncompressed file tree, my guess is that you have missed out the compression step when creating the file; i.e. you have created an uncompressed TAR file.

A proper tar.gz file is a TAR file that has been compressed using gzip compression. You can create one like this:

Source https://stackoverflow.com/questions/69915127

QUESTION

Zlib inflate works differently to C?

Asked 2020-Jul-23 at 15:50

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 think?). I am using JZlib. Here is my Java code (dgboff is just the offset of this zlib byte array in a file):

...

ANSWER

Answered 2020-Jul-23 at 15:50

Your data is not a zlib stream, and does not have a zlib header. It is a raw deflate stream. Neither of your code examples as shown could have worked. Your "here is the C code, which works" must have been some other C code.

To decompress raw inflate data, you need to use -15 (instead of 15) as the second argument of inflateInit2().

By the way, the deflate compressed data you provided a link for is incomplete. It is correct as far as it goes, but it does not terminate.

Source https://stackoverflow.com/questions/63044414

QUESTION

How to get Spring Cloud Config dependencies to resolve from parent configuration in Gradle multi-module build?

Asked 2020-Jul-21 at 15:00

In an effort to put together an example project for Spring Cloud Config server and (Java and non-Java) clients using Vault, I decided to go the route of a multi-module Gradle build. Since I already had two working Java projects (server and client), I figured that I could pull the common configuration up into the parent build.gradle and conditionally apply the configuration for the Java subprojects. I started with the server subproject, and ran into an issue that I've been unable to resolve.

The build.gradle for the parent module looks like:

...

ANSWER

Answered 2020-Jul-21 at 15:00

I've made a PR to your repo: https://github.com/daecabhir/cloud-config-vault-example/pull/3

Rather than using a property to control if a project is a Spring Boot project (didn't work for me), you can define a list of projects that are Spring Boot based projects, then apply defaults which you have done.

Source https://stackoverflow.com/questions/63005746

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

CVE-2002-2102 MEDIUM

InfBlocks.java in JCraft JZlib before 0.0.7 allow remote attackers to cause a denial of service (NullPointerException) via an invalid block of deflated data.

http://www.jcraft.com/jzlib/ChangeLog

http://www.securityfocus.com/bid/4359

http://www.iss.net/security_center/static/8627.php

Install jzlib

You can download it from GitHub, Maven.
You can use jzlib like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the jzlib component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .