jssembly - Jssembly is a library that allows you to execute native assembly from Java.

  •        13

However, with great power comes great responsibility.WARNING: Jssembly can (and will) crash your VM if you don't know what you're doing. The current pre-alpha state is in no way meant to be used in production code. You have been warned.




Related Projects


  •    VB

DVX is a video encoding tool with support for many source and target formats. Please visit the website at http://www.planetdvb.net/dvx to download recent versions.

riemann-jvm-profiler - Sends stacktrace-level performance data from a JVM process to Riemann.

  •    Clojure

Riemann-jvm-profiler requires no changes to your codebase. You'll need a Riemann server with the websocket/HTTP server (ws-server) accessible from each JVM process. The default Riemann websocket port is 5556.You can add riemann-jvm-profiler artifact to your Maven or Leiningen project via Clojars, and somewhere in your application startup code, invoke the profiler programmatically.

jvm.go - A toy JVM written in Go

  •    Go

A JVM written in Go.jvm.go is a toy JVM (which is far from complete) programmed in Go. The main purpose of this project is learning Go and the JVM. So the number one goal of the project is readability of code. The basic idea is to just implement the core JVM, and use rt.jar (from OpenJDK) as its class library. The garbage collector is implemented by directly using Go’s GC.

jvm-mon - Console-based JVM monitoring

  •    Kotlin

Console based JVM monitoring - when you just want to SSH into a server and see what's going on. jvm-top lets you monitor your JVM server applications from the terminal.

spring-loaded - Java agent that enables class reloading in a running JVM

  •    Java

Spring Loaded is a JVM agent for reloading class file changes whilst a JVM is running. It transforms classes at loadtime to make them amenable to later reloading. Unlike 'hot code replace' which only allows simple changes once a JVM is running (e.g. changes to method bodies), Spring Loaded allows you to add/modify/delete methods/fields/constructors. The annotations on types/methods/fields/constructors can also be modified and it is possible to add/remove/change values in enum types.Spring Loaded is usable on any bytecode that may run on a JVM, and is actually the reloading system used in Grails 2.

Eta - A powerful language for building scalable systems on the JVM

  •    Haskell

Eta is a pure, lazy, strongly typed functional programming language on the JVM. It is a dialect of Haskell on the JVM. It is pure by default which means that calling a function with the same arguments will yield the same results every time. It is lazy by default which means that data stays in unevaluated state until a function needs to peek inside.

JVM Monitor - Java profiler integrated with Eclipse

  •    Java

JVM Monitor is a Java profiler integrated with Eclipse to monitor CPU, threads and memory usage of Java applications. JVM Monitor would be useful to quickly inspect Java applications without preparing any launch configuration beforehand. JVM Monitor automatically finds the running JVMs on local host and you can easily start monitoring them. It is also supported to monitor Java applications on remote host by giving hostname and port number.

Capsule - Dead-Simple Packaging and Deployment for JVM Apps

  •    Java

Capsule is a packaging and deployment tool for JVM applications. A capsule is a single executable JAR that contains everything your application needs to run either in the form of embedded files or as declarative metadata. It can contain your JAR artifacts, your dependencies and resources, native libraries, the require JRE version, the JVM flags required to run the application well, Java or native agents and more. In short, a capsule is a self-contained JAR that knows everything there is to know about how to run your application the way it's meant to run.

kotlin - Statically Typed Programming Language for the JVM

  •    Java

Kotlin is a statically typed programming language that compiles to JVM byte codes and JavaScript. Java programming language has certain limitations and problems that are either impossible or very hard to fix due to backward-compatibility issues. This new statically typed JVM-targeted language free of the legacy has features include compilation at least as fast as Java, variable type inference, higher-order functions (closures), extension functions, code in interfaces, first-class delegation etc

jHiccup - JVM Instrumentation Tool

  •    Java

jHiccup is a non-intrusive instrumentation tool that logs and records platform "hiccups" - including the JVM stalls that often happen when Java applications are executed and/or any OS or hardware platform noise that may cause the running application to not be continuously runnable.

cassovary - Cassovary is a simple big graph processing library for the JVM

  •    Scala

Cassovary is a simple "big graph" processing library for the JVM. Most JVM-hosted graph libraries are flexible but not space efficient. Cassovary is designed from the ground up to first be able to efficiently handle graphs with billions of nodes and edges. A typical example usage is to do large scale graph mining and analysis of a big network. Cassovary is written in Scala and can be used with any JVM-hosted language. It comes with some common data structures and algorithms.Please follow the cassovary project on twitter at @cassovary for updates.

golo-lang - Golo - a lightweight dynamic language for the JVM.

  •    Java

The world didn't need another JVM language. So we built yet another one. A simple one.Golo is a simple dynamic, weakly-typed language for the JVM.

Kamon - Tool for monitoring applications running on the JVM

  •    Scala

Kamon is a reactive-friendly toolkit for monitoring applications that run on top of the JVM. It provides API to manually create metric recording instruments for any application running on the JVM. It provides bytecode instrumentation modules for Scala, Akka, Spray and Play. It supports several reporting backends like StatsD, Datadog and New Relic. It also allows to create custom reports.

jvm-readings - JVM readings


A list of papers and blog posts essential to understanding how the JVM works, and building high performance applications on the JVM. The list is curated and maintained by Reynold Xin (@rxin). If you think a paper should be part of this list, please submit a pull request. It might take a while since I need to go over the material.

Metascala - A JVM written in Scala

  •    Scala

Metascala is a tiny metacircular Java Virtual Machine (JVM) written in the Scala programming language. Metascala is barely 3000 lines of Scala, and is complete enough that it is able to interpret itself metacircularly. Being written in Scala and compiled to Java bytecode, the Metascala JVM requires a host JVM in order to run. Although it is far from a complete implementation, Metascala already provides the ability to run untrusted bytecode securely (albeit slowly), since every operation which could potentially cause harm (including memory allocations and CPU usage) is virtualized and can be controlled. Ongoing work includes tightening of the security guarantees, improving compatibility and increasing performance.

incanter - Clojure-based, R-like statistical computing and graphics environment for the JVM

  •    Clojure

Incanter is a Clojure-based, R-like statistical computing and graphics environment for the JVM. At the core of Incanter are the Parallel Colt numerics library, a multithreaded version of Colt, and the JFreeChart charting library, as well as several other Java and Clojure libraries. The motivation for creating Incanter is to provide a JVM-based statistical computing and graphics platform with R-like semantics and interactive-programming environment. Running on the JVM provides access to the large number of existing Java libraries for data access, data processing, and presentation. Clojure’s seamless integration with Java makes leveraging these libraries much simpler than is possible in R, and Incanter’s R-like semantics makes statistical programming much simpler than is possible in pure Java.

FriceEngine - :video_game: JVM game engine based on Swing/JavaFX.

  •    Kotlin

An easy, light, native game engine running on JVM. Why easy? A flappy bird game uses just 56 lines of Java code only. Written in Kotlin, also work on Java, JRuby, Groovy, Scala and other JVM languages.

jvm-serializers - Benchmark comparing serialization libraries on the JVM

  •    Java

Benchmark comparing serialization libraries on the JVM