jvm.go

A JVM writing in GO...

Introduction

jvm.go is a new JVM(which is far from complete) programmed in Go. The main purpose of this project is learning JVM. So, the number one goal of the project is readability of code. The basic idea is just implement the core JVM, and use rt.jar(from OpenJDK) as its class libraries. GC is directly using Go's. For me, the hardest part is Thread and ClassLoader.

My dev environment:

• Mac OS X 10.10.2
• Java 1.8.0_31
• Go 1.4

Build jvm.go

export GOPATH=path/to/jvm.go/
go install jvmgo

Run jvm.go

Create the following folder and file structure:

path/to/jvm.go/bin
├── jvmgo
└── jre/
    └── lib/
        ├── rt.jar
        ├── currency.data
        └── net.properties

cd path/to/jvm.go/bin
./jvmgo -cp path/to/jars:path/to/classes HelloWorld

Where to find rt.jar:

/Library/Java/JavaVirtualMachines/jdk1.8.0_31.jdk/Contents/Home/jre/lib/rt.jar