Open Source Java Virtual Machine Software

A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR and combines with the Extensions for OpenJDK for OpenJ9 repo. We're not sure which route you might have taken on your way here, but we're really pleased to see you! If you came directly from our website, you've probably already learned a lot about Eclipse OpenJ9 and how it fits into the OpenJDK ecosystem. Eclipse OpenJ9 is an independent implementation of a Java Virtual Machine. "Independent implementation" means it was built using the Java Virtual Machine specification without using any code from any other Java Virtual Machine. The OpenJ9 JVM combines with the Java Class libraries from OpenJDK to create a complete JDK tuned for footprint, performance, and reliability that is well suited for cloud deployments. The original source contribution to OpenJ9 came from the IBM "J9" JVM which has been used in production by thousands of Java applications.

A PSP porting of SUN's phoneMEFeature (https://phoneme.dev.java.net/) project, to enable MIDP/JavaME applications running on PSP. You can also find phoneMEAdvanced PSP porting from another project: pspME(https://sourceforge.net/projects/pspme)

Jasmin is a Java Assembler. It takes ASCII descriptions for Java classes, written in a simple assembler-like syntax. It converts them into binary Java .class class files suitable for loading into a Java Virtual Machine implementation.

JNode is a Java New Operating system Design Effort. JNode is a simple to use and install Java operating system for personal use on modern devices. Any java application runs on it, fast and safe. See our homepage for additional information.

Byte Buddy is a code generation and manipulation library for creating and modifying Java classes during the runtime of a Java application and without the help of a compiler. Other than the code generation utilities that ship with the Java Class Library, Byte Buddy allows the creation of arbitrary classes and is not limited to implementing interfaces for the creation of runtime proxies. Furthermore, Byte Buddy offers a convenient API for changing classes either manually, using a Java agent or during a build. In order to use Byte Buddy, one does not require an understanding of Java byte code or the class file format. In contrast, Byte Buddy's API aims for code that is concise and easy to understand for everybody. Nevertheless, Byte Buddy remains fully customizable down to the possibility of defining custom byte code. Furthermore, the API was designed to be as non-intrusive as possible and as a result, Byte Buddy does not leave any trace in the classes that were created by it.

This is an x86 emulator written in pure Java based on the Dosbox project. It currently supports running Dosbox's built in DOS and well as booting into Windows 95/98/NT4.

Simplify virtually executes an app to understand its behavior and then tries to optimize the code so that it behaves identically but is easier for a human to understand. Each optimization type is simple and generic, so it doesn't matter what specific type of obfuscation is used. Provides a virtual machine sandbox for executing Dalvik methods. After executing a method, it returns a graph containing all possible register and class values for every execution path. It works even if some values are unknown, such as file and network I/O. For example, any if or switch conditional with an unknown value results in both branches being taken. Analyzes the execution graphs from smalivm and applies optimizations such as constant propagation, dead code removal, unreflection, and some peephole optimizations. These are fairly simple, but when applied together repeatedly, they'll decrypt strings, remove reflection, and greatly simplify code. It does not rename methods and classes.

The PHP script engine for Java. --- Run PHP applications within any J2EE server or servlet engine and/or connect script engines like PHP with Java or .NET back ends efficiently.

Execute Java code like java.exe 1. support service to start/stop 2. support console command to execute java

X10 is a class-based, strongly-typed, garbage-collected, object-oriented language. To support concurrency and distribution, X10 uses the Asynchronous Partitioned Global Address Space programming model (APGAS). This model introduces two key concepts -- places and asynchronous tasks -- and a few mechanisms for coordination. With these, APGAS can express both regular and irregular parallelism, message-passing-style and active-message-style computations, fork-join and bulk-synchronous parallelism. Both its modern, type-safe sequential core and simple programming model for concurrency and distribution contribute to making X10 a high-productivity language in the HPC and Big Data spaces. User productivity is further enhanced by providing tools such as an Eclipse-based IDE (X10DT). Implementations of X10 are available for a wide variety of hardware and software platforms ranging from laptops, to commodity clusters, to supercomputers.

Jasmin is an interpreter for the x86 assembly language with a full-featured development environment aimed for educational purposes.

SquirrelJME is intended to be a Java ME 8 compatible environment for strange and many other devices. The source is written in pure Java and is licensed under the GNU GPLv3+.

VMware Tools Client allow you to execute scripts and transfert files on vSphere Virtual Machines through VMware Tools. http://pierrelx.com/vmware-tools-client Main features: - Commands / Scripts execution - Scripts stored in exportable ".db" file - Download file from virtual machines - Upload file to virtual machines - Ping test - Communicates with Virtual Machines only with VMware tools - Read only on vCenter API to discover inventory (will not scan the entire vCenter, it is live discovery) - vCenter URL/Login and Virtual Machine credentials stored in separeted and exportable ".db" file - Linux / Windows support - Multi VM view - JavaFX user interface

raw2vmdk is an OS independent Java utility that allows you to mount raw disk images, like images created by "dd", using VMware, VirtualBox or any other virtualization platform supporting the VMDK disk format.

LiveView is a forensics tool that creates a VMware virtual machine out of a raw (dd-style) disk image. This allows an examiner to "boot up" the image and gain an interactive, user-level perspective of the environment, all without modifying the imag

How can we easily develop applications for multicore or multicomputer architectures? We frequently use middlewares for that problem, but they are often complex and less productive. This way, at DECOM-UFOP, we have a middleware, named JavaCa&La or just JCL, to build portable and scalable solutions over many high performance computer architectures. Our middleware APIs is simple, intuitive and designed for young and senior programmers who don’t have high performance programming skills. Using our middleware, different programmers can develop applications in a collaborative way, i.e., one programmer application can read and write global variables from another application, developed by another programmer, in another machine, without explicit references. Existing Java applications can be executed by JCL. Low refactorings to insert distributed JCL maps in your existing code. Portable JCL code for multicore and multicomputer architectures.

This project provides a full set of libraries to manage VMware Infrastructure and vSphere. 2.0+ includes a new Web Service engine much faster/smaller than Apach AXIS. Start @ http://vijava.sf.net Blog @ http://doublecloud.org Twitter: @sjin2008 For commercial support and product vijavaNG, visit http://www.doublecloud.net.

The fast x86 PC emulator in 100% pure Java

Fully graphical mips simulator, with a simple text editor. The aim is to not only have the entire mips isa implemented and simulated, but to have a mips ide. The text highlighting for the mips instructions set is currently underway. Version 3 Available.

Emulator of the ancient 8 bit microprocessor ISP-8A 500D/600D or more common "SC/MP" from National Semiconductor. The download contains all sources plus an executable Java Jar file to start right away. Some SC/MP hex dump examples are provided in directory "/etc" as well. The download also contains unit tests and some helping documentation (also in /etc). You may slow down the CPU operations, displaying the CPUs status register as LEDs, to watch the CPU working with its registers. The emulator also contains a VDU (video display unit) output / ASCII input simulation. There are some demos in /etc. And have a look to the NIBL / TINY BASIC interpreter in the TINYBASIC folder, most of the code is over 40 years old. Have fun, Theo Heinrichs

HaikuVM has been started for hobbyists who develop applications for ARDUINO to open the world of JAVA and leJOS. Yes, you can program an ARDUINO with JAVA! HaikuVM is so small that it even runs on an atmega8 (and the ASURO robot). And yes, you can program an ASURO robot with JAVA! And since version 1.4.0 the RCX lego brick.

SimDK is a VMware vSphere4 simulator which provides vSphere4 API-compatibility for official vSphere4 clients and other applications built using the vSphere4 SDK.

The program Virtual Network Simulator for Web 2.0 is a tool that allows the simulation of assembly and configuration of computer network projects, virtual or physical. It also simulate the sending of a package between the hots of origin and destinati

A simulator of Donald E. Knuth's fictitious MIX processor written in Java, which includes support for floating-point arithmetics.

Potato is a Squeak virtual machine completely written in Java. It is a derivative of JSqueak (http://research.sun.com/projects/JSqueak/) which was developed by Dan Ingalls. There is a blog on the project at http://potatovm.blogspot.com/.