JRuby 1.1.4 is now available. While it's a maintenance release, it contains host of improvements.
The feature list from the release notes shows a few themes. Java integration changes:
Ruby 1.9 support:
The feature list from the release notes shows a few themes. Java integration changes:
- Massive refactoring of Java integration layerWe covered JRuby 1.1.4's Java Integration in more detail before. InfoQ's recent interview with Nick Sieger also covered the work on Java Integration.
- 2-20x speed up of most features (calls, construction, arrays)
- Many long-standing Ruby/Java interaction bugs fixed
- Existing features made more consistent, reliable
- Closures can be passed as interface to static methods, constructors
- Java exceptions can be raised/rescued directly from Ruby
Ruby 1.9 support:
- Beginning of Ruby 1.9 support (enabled with –1.9 flag)Native library integration (we covered the port of Rubinius' FFI to JRuby before):
- Native complex/rational
- FFI subsystem for calling C librariesPerformance improvements:
- win32 API support started
- syslog module from Rubinius is working and included
- Additional efficiency, performance work in the interpreterThe release notes also lists the bugs fixed in this release. Everyone using JRuby with OSGi runtimes might be interested in "OSGify jruby.jar in the release jruby distribution", which adds the proper OSGi metadata to the jruby.jar.
- Memory leak under –manage repaired
- Thread pooling improved (at least one production user now)
- Massive memory efficiency improvements (a lot less GC)
- Array concurrent-access improvements
- 72 issues resolved since JRuby 1.1.3