Bouncy Castle

https://www.bouncycastle.org/

The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms, it was developed by the Legion of the Bouncy Castle, a registered Australian Charity, with a little help!

commonmark-java

https://github.com/atlassian/commonmark-java

Java library for parsing and rendering Markdown text according to the CommonMark specification (and some extensions).

DCEVM

https://dcevm.github.io/

This project is a fork of original DCEVM project. The purpose of the project is to maintain enhanced class redefinition functionality for OpenJDK HotSpot 7/8 and Oracle JVM.

deeplearning4j

https://deeplearning4j.org/

Deeplearning4j is the first commercial-grade, open-source, distributed deep-learning library written for Java and Scala. Integrated with Hadoop and Spark, DL4J is designed to be used in business environments on distributed GPUs and CPUs.

druid

https://github.com/alibaba/druid

Druid is the best database connection pool in JAVA. Druid provides powerful monitoring and extended functionality.

Fastjson

https://github.com/alibaba/fastjson

Fastjson is a Java library that can be used to convert Java Objects into their JSON representation.

jasmin

https://github.com/Sable/jasmin/

Jasmin is a Java Assembler Interface. It takes ASCII descriptions for Java classes, written in a simple assembler-like syntax, and using the Java Virtual Machine instruction set. It converts them into binary Java class files suitable for loading into a Java interpreter.

jsoup

https://jsoup.org/

jsoup is a Java library for working with real-world HTML. It provides a very convenient API for extracting and manipulating data, using the best of DOM, CSS, and jquery-like methods.

libphonenumber

https://github.com/googlei18n/libphonenumber

Google's common Java, C++ and JavaScript library for parsing, formatting, and validating international phone numbers.

OkHttp

https://github.com/square/okhttp

An HTTP+HTTP/2 client for Android and Java applications.

Pollexor

https://github.com/square/pollexor

Java client for the Thumbor image service which allows you to build URIs in an expressive fashion using a fluent API.

Soot

https://sable.github.io/soot/

Originally, Soot started off as a Java optimization framework. By now, researchers and practitioners from around the world use Soot to analyze, instrument, optimize and visualize Java and Android applications.