andreabergia/rjvm

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1578 stars · 94 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A minimal Java Virtual Machine (JVM 7) implemented in Rust as a hobby learning project. It can parse .class files, resolve classes from jars or folders, and execute simple Java programs using real OpenJDK 7 classes, including features like exceptions, garbage collection, and virtual/static methods.

Use cases

• learn how a JVM works internally
• study a JVM implementation written in Rust
• execute simple Java bytecode without a full JVM
• understand Java class file format parsing
• learn Rust by reading a real interpreter codebase
• explore garbage collection and exception handling in a VM

When to choose

• you want to read a small, approachable JVM implementation to learn VM internals
• you are learning Rust and want a real-world codebase to study
• you need to run very simple Java 7 programs for experimentation
• you want to follow a blog series explaining how to build a JVM from scratch

When to avoid

• you need a production-ready JVM to run real applications
• you need threading, reflection, I/O, JIT compilation, or class file verification
• you need full Java compatibility or multi-dimensional arrays
• you need a well-tested, documented, or maintained tool

Facets

application · maturity experimental

interpreter parser programming-language programming-languages education developer-tools windows rust jvm virtual-machine rust learning-project java bytecode class-file-parser garbage-collection linux macos

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