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A pure Rust implementation of the JVM 7 spec, with the main goals being to be able to eventually:

• Run the OpenJDK 7 Java source
• Have a Cranelift-backed JIT, and an AOT WASM compiler.

• Deserialize Java 7 classes

• Type-checking of bytecode (!)

• Get basic bytecode running

• Get heap allocation and object creation working

• Improve stability

• Monitors and error handling

• Fully implement all bytecode

• Get the OpenJDK 7 source to load and run.

• Stop-the-world GC

• Bytecode metrics

• Cranelift JIT

• Concurrent GC

• Ahead-of-time WASM compiler

Look in main.rs of the jvm_test crate for an example.

cargo run -p jvm_test -- --mode <i, stepper>

This library is under heavy development, and as such is very unstable and unsafe(!) to use. The main issues arise fromthe fact that executed bytecode is not currently type-checked.

TLDR: don't use this for anything important, nor on anything you don't trust.