It's that time of year again, and the call for papers for JavaOne and CommunityOne is closing soon! We're hoping for a lot more diverse JRuby presentations and speakers this year, so don't think you have to be doing Rails to get in. There's room for GUI dev, Game dev,...

Short thoughts on KirinDave's post The Opposite of Momentum, which the anti-Ruby crowd has latched on to as more evidence that Ruby is "falling flat on its face".Dave's post appears to largely lament the lack of progress in the C implementations, be it their lack of performance, presence of memory...

One of the largest problems plaguing Ruby implementations (and plaguing some other language implementations, so I hear from my Pythonista friends) is the ever-painful story of "extensions". In general, these take the form of a dynamic library, usually written in C, that plugs into and calls Ruby's native API as...

After a long day fixing bugs, ya gotta hack on something frivolous once in a while.
I've started to play with a proof-of-concept branch that uses Rubinius's kernel (pure Ruby core class implementations) in replacement for our own (pure Java). Initially I've been playing with Hash, which is one of...

Here's the presentation I gave tonight on Duby. I'm putting together an in-depth post for release this week.
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Greetings, readers!
Over the past couple weeks I've had a few departures from typical JRuby development. I consider it a working vacation. I'm hoping to report on all of it soon, but for now we'll focus on one of the most exciting items: JSR-292, otherwise known as "InvokeDynamic"...

I'll make this a short one.
I was just having a conversation with a friend, a Rubyist whose opinion I respect, who clued me in that he really hates when JRuby users use Java libraries with little or no Ruby syntactic sugar. He hates that there's a better chance every...

I'm just reading through the comic and thought I'd jot down a few things I notice as I go. Take them for what they're worth, high-level opinions.
Browsers single-threaded? Maybe 10 years ago. I routinely have a CPU-heavy JS running in Firefox and it doesn't stop me working in other...

I haven't forgotten about my promise to post on FFI and MVM APIs, but I've been taking occasional breaks from JRuby (heaven forbid!) to get some time on on Duby.
What Is Duby?...

There still seems to be confusion about the relative simplicity or difficulty of deploying a Rails app using JRuby. Many folks still look around for the old tools and the old ways (Mongrel, generally), assuming that "all that app server stuff" is too complicated. I figured I'd post a quick...

There's been a little bit of buzz about David Heinemeier Hansson's announcement that Josh Peek has joined Rails core and is about to wrap up his GSoC project making Rails finally be thread-safe. To be honest, there probably hasn't been enough buzz, and there's been several misunderstandings about what it...

It's been a long time since I posted last. I figured it was time to get at least a basic update out to folks.
JRuby's been clicking along really well. Perhaps a little too well. Our bug tracker counts 476 open bugs and climbing, even while we're trying to periodically...

I'm posting this to make sure it gets out there, so nobody else spends a couple days trying to fix it.
Recently, after some upgrade, I started getting the following message during JRuby's run of RubySpecs:Inconsistency detected by ld.so: dl-open.c: 623: _dl_open: Assertion `_dl_debug_initialize (0, args.nsid)->r_state == RT_CONSISTENT' failed!I narrowed...

Whew! I survived the insanity of the JRuby Japanese Tour 2008, and now it's time to report on it. This post will mostly be a blow-by-blow account of the trip, and I'll try to post more in-depth thoughts later. I am still in Tokyo and need to repack my luggage,...

RailsConf 2008 is over, and it was by far better than last year. I'm not one for drawn-out conference wrap-up posts so here's a summary of my most inspiring moments and if applicable how they're going to affect JRuby going forward.
IronRuby and Rubinius both running Rails has inspired me...

Of course anyone who reads my blog expected I'd have something to say about Maglev once it was made public. I've previously performed what I thought was a fair analysis of the various Ruby implementations, and Maglev was mostly a sidebar. With their coming out at RailsConf, they're now fair...

Hey there JRubyists and JRubyists-to-be...if you're planning to be in Portland the evening of Thursday, May 29, there's going to be a sponsored JRuby hackfest for you!
The event is going to be at the McMenamins Brewpub/Restaurant at the Kennedy School. We'll have a room set aside for around 40ish...

A new JRuby on Rails venture was just publicly announced. It's a collaboration between Collaborative Software Initiative and the State of Utah:
Portland, Ore., May 19, 2008 - Collaborative Software Initiative (CSI), the company that brings like-minded organizations together to work on collaborative software at a fraction of the cost,...

Sun is running an "Ask the Experts" session on Ruby/JRuby support in NetBeans 6(.1) with myself, Tor Norbye, and Brian Leonard. If you've had questions about NetBeans Ruby support you'd like answered, but haven't had a chance to ask...here's your opportunity.
The main page is here: Ask the Experts...

It's Saturday and I'm going to be waxing poetic again. This time, it's stream-of-consciousness mind-dumping. Enjoy, or not.
The Game of Life...