Wow that was quick. My first attempt with IntelliJ didn't really take, but I've had more time now to make the adjustment under less pressure.
What a difference. On my Mac at least, it's much faster and more stable than Eclipse. I've been running current versions of Eclipse, with the Maven plugin but very little else, and Mylyn disabled as much as possible ... and Eclipse has been agonizingly slow and very unstable with multiple lock ups and crashes per day.
IntelliJ is just ... better. Faster (note that you need to turn off the Mac L&F if you want best performance; I'm using "Alloy").
I've been so thoroughly used to the Eclipse development model, including constant compilation. IntelliJ doesn't compile until you need to run code. It does parse your code constantly, which amounts to the same thing in terms of refactoring and code completion, but IntelliJ is far more forgiving of syntax errors and the like.
Maven integration is better; I chose an option where it synchronizes from Maven on demand (and on startup).
For a multi-module projects, IntelliJ does a better job. Each module really gets its own classpath, whereas Eclipse merges together all the source paths and all the libraries for all modules.
A couple of Tapestry development notes:
You do want to make sure that your exported resource patterns (in the Compiler project options) is
!?*.java... otherwise critical Tapestry files don't get copied and made available on the classpath.
- Also, for IntelliJ you have to perform a make (command-F9) after changing code or templates for those changes to be visible.
Yes, there's a number of nitpicks, especially on a Mac. It's extremely intimidating the first time you launch, with a wealth of confusing options. Documentation is spotty and key concepts are never explained. There's too many modal popup windows. Regardless, I'm already working faster, using the mouse less, and keep finding new features. I'd say I'm using about 20% of what IntelliJ can do right now, and I'm already well ahead of the Eclipse curve.
Apparently, IntelliJ is like snowboarding: you need to give it three full days before you're hooked. Counterpoint: I'm still on skis.
Another analogy: IntelliJ is metric and Eclipse is english. If all you've ever known is feet and inches and pounds and ounces, then metric doesn't seem worth the effort to switch. Metric just seems like a different set of numbers, mixed with disconcerting nuances (such as the difference between mass and weight). On the other hand, once you make the transition, many difficult tasks become easier, since most conversions are multiplying or dividing by a power of ten.
IntelliJ's 30 day evaluation is long enough to get hooked. Give it a try.