https://github.com/douchuan/jvm

JVM in Rust, written as a learning project.
https://github.com/douchuan/jvm

java jvm modular rust vm

Last synced: 4 days ago
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JVM in Rust, written as a learning project.

• Host: GitHub
• URL: https://github.com/douchuan/jvm
• Owner: douchuan
• License: mit
• Created: 2019-12-12T05:47:17.000Z (almost 5 years ago)
• Default Branch: master
• Last Pushed: 2021-03-05T15:01:23.000Z (over 3 years ago)
• Last Synced: 2024-08-03T01:39:04.630Z (3 months ago)
• Topics: java, jvm, modular, rust, vm
• Language: Rust
• Homepage:
• Size: 1.26 MB
• Stars: 513
• Watchers: 20
• Forks: 31
• Open Issues: 4
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        
Have a great goal is a very important thing, such as Moon Landing.

What is the meaning of this plan? 

That's the process of achieving this goal, the produce of industry and technology.

Sun is a great company, in the era of C++, they created JVM & HotSpot.

Now, we have Rust, a better tool, let’s remake JVM! 

Pay tribute to medical workers at the front! Thank you for your contribution to the fight against the epidemic.

## Roadmap

- Pass test cases in JDK 

- Pass TCK 

- GC (crate)

- JIT / interp (crate)

- class verification (crate)

- After GC built, ready for optimize System.arraycopy (the key of performance)

- WebAssembly, make the JVM work in Browser 

- java options (-version, -server...)

In summary, the roadmap is built on a 3-step progress.

- Pass TCK

- Refactor & Rewrite

- Divide into several crates, build a collection of modular and reusable vm technologies

Well, it's a long term plan, Sun spent 30 years to improve

VM, Oracle continue doing it.

The journey of a thousand miles begins with one first step. Even the sage was once an ordinary human being.

Just Do It.

## Running

```shell

# setup JDK

# setup rust toolchain

# clone this project

# compile sample by javac

cd jvm/sample

javac HelloWorld.java

cd ..

# modify r.sh JAVA_HOME according to your env

# exec sample

cd jvm

bash r.sh

```