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Making the JVM faster

FastJVM analyzes JVM bytecode and applies provably safe optimizations such as automatic parallelization. On some workloads it already delivers up to 10× speedups; the goal is to generalize these gains across the JVM.
Active Founders
Marcus Engene
Marcus Engene
Founder
Nicolas Toper
Nicolas Toper
Founder
I like to build new things. My blog : https://deviantabstraction.com
Company Launches
AUTODOC: Open-source AI writing your Javadoc
See original launch post


Writing consistent Javadoc is tedious, and even AI coding assistants often skip or misfire on it. Autodoc automates the boring part: it scans your PRs, understands your code, and generates high-quality Javadoc so you don’t have to.

Key Features

  • Understands Your Code – Skips trivial getters and setters, focusing only on meaningful docs
  • 🔄 PR-Native – Runs on pull requests, adds docs in a clean commit.
  • 🎯 Team-Ready – Customize prompts for your standards.
  • 🚀 Open Source – Install, use, and improve it on GitHub.

So how does it actually work?

How It Works

Open a PR, and Autodoc gets to work. It scans the changed Java files, adds contextual Javadoc where it’s missing, and pushes a separate commit with the docs. Reviewers see the docs right inside the PR and can refine them like any other code.

Get Started

👉 Get started with Autodoc on GitHub

(Requires a valid Claude API account.)

Blog post: https://deviantabstraction.com/2025/08/29/autodoc-ai-writing-your-javadoc
Github Repo: https://github.com/manycore-com/JavadocGithubAction

Previous Launches
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FastJVM
Founded:2016
Batch:Winter 2017
Team Size:3
Status:
Active
Location:Palo Alto