OpenJDK
Fewer than 5 people recommend it so far, so there's no written verdict. Here is what commenters said.
4recommend
2warn against
Dec 5, 2025first mention
Oct 29, 2026latest mention
Why people recommend it
“OpenJDK's new ability to 'cache' classes to accelerate class loading”
Show 2 more
“The openjdk can do fast startup pretty trivially.”
“mass migration to free OpenJDK and Amazon Corretto and all the other free forks”
Caveats and dissent
“this seems like it could be quite disruptive”
“I found the response rather dismissive and unhelpful”
Often compared with
From the makers not counted in the ranking
“Author of the OpenJDK patch here.”
Threads where it came up
- "Giving up upstream-ing my patches & feel free to pick them up" 2 mentions
- Roblox downloaded 145GB models from us (including adult content) without asking 1 mention
- OpenJDK randomly(?) removes all eMudhra root CAs 1 mention
- Java sealed classes and exhaustive pattern matching 1 mention
- JDK 28 1 mention
- Go Concurrency Distilled 1 mention
Data: openjdk.json. Quotes are verbatim; the verdict and theme labels are written by a model from these comments, and every clause links to its sources.
All comments 18
“OpenJDK currently forbids AI contributions.”
“this seems like it could be quite disruptive”
“I found the response rather dismissive and unhelpful”
“JIT + hotspot optimization makes JVM pretty fast”
“That is changing as we speak:”
“https://openjdk.org/jeps/8377305”
“Others might include Kubernetes, OpenJDK, Clang, React, Docker, Git/Github.”
“The risks of having legal problems are very clear.”
“The way pull requests and commits work in the OpenJDK repository”
> It was always .NET No, it was not. What's called .NET now used to be .NET Core. And then there's .NET Framework which was commonly known as .NET. > "cannot be tweaked at all" Are you serious? Not only does the JDK have multiple GCs for different use cases (Serial, Parallel, G1, ZGC, Shenandoah), they have very refined tuning settings (https://wiki.openjdk.org/spaces/zgc/pages/34668579/Main#Main-Configuration&Tuning
“OpenJDK's new ability to 'cache' classes to accelerate class loading”
“The openjdk can do fast startup pretty trivially.”
“OpenJDK is GPL2, so anyone can host their fork of OpenJDK with whatever GPL2-licensed patches they like”
“The email thread suggests his PRs were reviewed promptly and rejected.”
“you have tested everything under OpenJDK”
“https://github.com/psumbera/solaris-openjdk seem to work?”
“the market clearly wants things like projects Loom and Panama and Valhalla”
“mass migration to free OpenJDK and Amazon Corretto and all the other free forks”