What does HackerNews think of jdk?

"de-facto open source Java distro" ?

You mean "open source build for Java", because OpenJDK is open source, here: https://github.com/openjdk/jdk

One can build JDK themselves, it is not that hard.

> Currently about 1% of the JVM runtime is implemented in C

The JIT is probably half of the VM and is written in C++.

Github [1] says (for the whole JDK, not just the VM): Java 75.1% C++ 13.4% C 7.4% Assembly 2.3% Objective-C 0.4%

[1] https://github.com/openjdk/jdk

To add to your question, assuming the tooling at github is ok, it has ~20% as c/c++ for https://github.com/openjdk/jdk. I would think most of that would be concentrated in the hotspot code, but I don't know. Would be delighted to know what the original post was referring to.

I'm pretty sure that's 100% immaterial to the argument but from 8 seconds on Google, here: https://github.com/openjdk/jdk C++: 13.9% C: 5.4%

Or here: https://en.wikipedia.org/wiki/HotSpot "Written in C++, Assembly"

Or here: https://blogs.oracle.com/sundararajan/so-you-want-to-read-ho...

I should have said Perl to really bring out the pedants.