This implementation is also designed to use the Amazon Coretto 8 JDK runtime jar - it doesn't provide its own implementations of the base utilities but instead implements the `native` functions that they depend on, like this one (one of the first I implemented) github.com/openjdk/jdk/...
I wrote this implementation in Go because I didn't want to write a GC. I'd love to write a metacircular one in Java in the style of Jikes but that's way more work than a holiday hack can accomodate.
The question of "wait... how does `System.out` get set?" leads you down a convoluted path of VM initialization that I chose to mostly skip. What I didn't skip was basically all of the bytecode interpreter, exceptions (try/catch/finally), class loading, `java.lang.Class` and `java.lang.String`...
You have to stub out a lot of stuff to get to a java Hello World. I chose to draw the line at `java.io.PrintStream`; I hacked `java.io.PrintStream.println(String)` and handled it specially. One of the interesting learnings from this project is that initializing `java.lang.System` is rocket science
a screenshot of a terminal showing a Java "hello world" program compiled by javac and executed by two runtimes - one, a real JVM, which prints "Hello World", and two, my JVM, which also prints "Hello World".
I spent a lot of time on planes during the holidays so I sometimes try to do a holiday hack - this year, I tried to get as far as I could writing a JVM in a pretty short amount of time. I'm pretty proud of this one and learned a ton of cursed JVM trivia in the process.
(In that I worked there - I also still use the open source product)
hey! I’m one of those ex-Pulumi people and can offer my perspective if you like!
TLDR; The PSF has made the decision to put our community and our shared diversity, equity, and inclusion values ahead of seeking $1.5M in new revenue. Please read and share. pyfound.blogspot.com/2025/10/NSF-...
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how can you not be romantic about baseball
chai concentrate and chicken stock come in similar looking boxes. anyway I made chai rice for dinner and a chicken stock latte for dessert
same 🫠
thanks! I haven’t had a chance to use either guppy or nextest but they look so awesome that I’m deeply jealous! They do exactly what I want them to do!
thanks!
I wrote this because there's a lot of talk about how great monorepos supposedly are (I think they are!) but without talking about the problems you'll face when everyone works in a single codebase. I still think it's worth it to do, provided you commit to it!
I wrote a blog post about monorepos and what you as a small group of engineers need to do to make one work in your organization: blog.swgillespie.me/posts/monore...
please help, is someone on this plane a doctor???
IT IS I, POKEY!!!! I AM HOLDING A LOVELY TRANS FLAG AND DECLARING THUS: HOORAY FOR MY NICE TRANS FRIENDS!!
This is tragic. Anyone who was familiar with 18F knows those were some of the real heroes of government, who helped make government tech/digital services better for the public.
They were doing real work that DOGE pretends to do, but is too ignorant to know how to do.
lol of course. we tried this once at our apartment in undergrad and almost had a serious fire situation
setting the bar on fire and roasting marshmallows is iconic
I come from the other website, when I saw this post on bluesky I specifically sought you out bsky.app/profile/yash...
Tweet from wukko replying to my now deleted account: "every time i see you tweet it's something like java on microwave what the fuck are you doing"
If this looks and sounds a lot like @honeycomb.bsky.social or Facebook's Scuba (research.facebook.com/publications...) to you, that's intentional. Scuba radically changed the way that I think about observability at scale.
To kick this off, @clickhousedb.bsky.social just published a blog post about a talk I gave at a meetup describing how we at my current job used ClickHouse to power a deep event-based observability system with real-time query capabilities without breaking the bank. clickhouse.com/blog/buildin...
hi bluesky! I really loved Twitter a lot and I'm really enjoying Bluesky over the last week or so. I (used to?) post about computers a lot - particularly around rust, compiler implementation, observability systems, and stuff like that.
