This is an interesting thing I ran across when dealing with JRuby 1.1.4 and Swing - some of this may be just my lack of understanding of some of the Java integration features, some of it may be lingering bugs in the Java integration, and some of it may just be what has to be done to make it work; anyway - here goes.

JRuby 1.1.4 has been released.

There are a huge number of repairs and performance improvements related to the Java integration in this release. This is great for me, as I have hit some real stumbling blocks trying to build Swing GUIs with JRuby 1.1.3, and the bugs I was being tripped up by, have been fixed.

Highlights after the break:

Ok, so I’m working with SWT/JFace and JRuby, and I have so far implemented a fairly straightforward UI. Unfortunately, no matter what I do, when I run my little GUI program outside of debug mode, my lone TableViewer renders empty. If, however, I run in debug mode, it renders just fine.

Glossing over any minor technical details, it’s a run of the mill JFace TableViewer, backed by a ContentProvider (IStructuredContentProvider, actually) that calls into a Ruby model to get the list of items.

Recently, I’ve been toying with JRuby, and for the most part, I’ve been very pleased with the experience.