pulsar - Fibers, Channels and Actors for Clojure

•    Clojure

Pulsar wraps the Quasar library with a Clojure API that's very similar to Erlang.Java 7 and up and Clojure 1.5 and up are required to run Pulsar.

quasar - Fibers, Channels and Actors for the JVM

•    Java

You can also study the examples here.You can also read the introductory blog post.

Java SE - Creator of Java

•    Java

Java Standard Edition provides Java development kit and Runtime to develop and deploy Java programs. Developed by Sun and take over by Oracle. It has support for different environments like Desktop, Embedded, Web, Realtime etc.

Open JDK - Open Source implementation of Java

•    C

Open JDK is the open source implementation of Java platform. It has loads of sub projects like JDK6, JDK7, HotSpot, Graphics, Swing, Web etc.

GNU Classpath - Mother of most of the VM

•    C

GNU Classpath provides core class libraries for use with virtual machines and compilers for the java programming language. GNU Classpath 1.0 will be fully compatible with the 1.1 and 1.2 API specifications, in addition to having significant compatibility with the 1.3, 1.4, 1.5 and 1.6 APIs.

jvm-tools - Small set of tools for JVM troublshooting, monitoring and profiling.

•    Java

JVM tools, parent project

vert.x - Vert.x is a tool-kit for building reactive applications on the JVM

•    Java

This is the repository for Vert.x core.Vert.x core contains fairly low-level functionality, including support for HTTP, TCP, file system access, and various other features. You can use this directly in your own applications, and it's used by many of the other components of Vert.x.

perf-tools - Performance analysis tools based on Linux perf_events (aka perf) and ftrace

•    Shell

A miscellaneous collection of in-development and unsupported performance analysis tools for Linux ftrace and perf_events (aka the "perf" command). Both ftrace and perf are core Linux tracing tools, included in the kernel source. Your system probably has ftrace already, and perf is often just a package add (see Prerequisites).These tools are designed to be easy to install (fewest dependencies), provide advanced performance observability, and be simple to use: do one thing and do it well. This collection was created by Brendan Gregg (author of the DTraceToolkit).

javacpp - The missing bridge between Java and native C++

•    Java

The missing bridge between Java and native C++

GCViewer - Fork of tagtraum industries' GCViewer

•    Java

GCViewer is a little tool that visualizes verbose GC output generated by Sun / Oracle, IBM, HP and BEA Java Virtual Machines. It is free software released under GNU LGPL.

distsys-class - Class materials for a distributed systems lecture series

This outline accompanies a 12-16 hour overview class on distributed systems fundamentals. The course aims to introduce software engineers to the practical basics of distributed systems, through lecture and discussion. Participants will gain an intuitive understanding of key distributed systems terms, an overview of the algorithmic landscape, and explore production concerns.A distributed system is one in which the failure of a computer you didn't even know existed can render your own computer unusable.

avian - Avian is a lightweight virtual machine and class library designed to provide a useful subset of Java's features, suitable for building self-contained applications

•    C++

These are examples of building Avian on various operating systems for the x86_64 architecture. You may need to modify JAVA_HOME according to where the JDK is installed on your system. In all cases, be sure to use forward slashes in the path.Avian is a lightweight virtual machine and class library designed to provide a useful subset of Java's features, suitable for building self-contained applications. More information is available at the project web site.

stream-lib - Stream summarizer and cardinality estimator.

•    Java

A library for summarizing data in streams for which it is infeasible to store all events

leveldb - Port of LevelDB to Java

•    Java

Port of LevelDB to Java

JPHP - An alternative to Zend PHP, like JRuby and Jython only for PHP

•    Java

JPHP is a new implementation for PHP which uses the Java VM. It supports many features of the PHP language (7.0+).How does it work? JPHP is a compiler like javac, it compiles php sources to JVM bytecode and then can execute the result on the Java VM. JPHP is not a replacement for the Zend PHP engine or Facebook HHVM.

lwjgl3 - LWJGL is a Java library that enables cross-platform access to popular native APIs useful in the development of graphics (OpenGL), audio (OpenAL) and parallel computing (OpenCL) applications

•    Kotlin

LWJGL (https://www.lwjgl.org) is a Java library that enables cross-platform access to popular native APIs useful in the development of graphics (OpenGL/Vulkan), audio (OpenAL) and parallel computing (OpenCL) applications. This access is direct and high-performance, yet also wrapped in a type-safe and user-friendly layer, appropriate for the Java ecosystem.LWJGL is an enabling technology and provides low-level access. It is not a framework and does not provide higher-level utilities than what the native libraries expose. As such, novice programmers are encouraged to try one of the frameworks or game engines that make use of LWJGL, before working directly with the library.

failsafe - Simple, sophisticated failure handling

•    Java

Simple, sophisticated failure handling.Supports Java 6+ though the documentation uses lambdas for simplicity.

teavm - Compiler of Java bytecode to JavaScript

•    Java

TeaVM aggregate project

jOOL - jOOλ - The Missing Parts in Java 8 jOOλ improves the JDK libraries in areas where the Expert Group's focus was elsewhere

•    Java

jOOλ is part of the jOOQ series (along with jOOQ, jOOX, jOOR, jOOU) providing some useful extensions to Java 8 lambdas.

javaparser - Java 9 Parser and Abstract Syntax Tree for Java –

•    Java

Java 9 Parser Parser and Abstract Syntax Tree for Java