| [aspectj-dev] Latest dev builds of AspectJ and AJDT (eclipse 3.5) - please try them! |
The latest dev build of AspectJ is what I could call a candidate 1.6.7 release, it is included in the latest AJDT (for eclipse 3.5). There are some more minor fixes I am likely to put in but all the serious changes are complete. The AspectJ build is available here: http://eclipse.org/aspectj/downloads.php The latest AJDT builds are at the usual dev update site: http://download.eclipse.org/tools/ajdt/35/dev/update AspectJ 1.6.7 includes some serious changes - the matching process has been overhauled to speed it up ( http://andrewclement.blogspot.com/2009/11/aspectj-how-much-faster-is-aspectj-167.html ) and the loadtime weaving support has been overhauled to optimize how aop.xml files are processed, which should in turn reduce the amount of memory consumed by aspectj entities in a running system. All these changes pass the AspectJ test suite but please try them out if you can, to confirm I haven't regressed anything you are relying on. For those of you twiddling settings in your aop.xml (like typedemotion), my aim for 1.6.7 is you can run with the defaults and get the best behaviour. For this reason, type demotion has been turned ON by default in the latest builds. There is also an important performance improvement for annotation binding, so if you are doing that in your aspects I urge you to test it out (eg. before(SomeAnno a): execution(* *(..)) && @annotation(a) {}). The readme for 1.6.7 will include more details on the changes and actual numbers showing the differences, but to give you an idea I'm attaching (hopefully it will come through) a picture showing 10 iterations of starting tomcat with LTW applying a number of aspects (including spring-aspects) to a small web application. For each iteration it shows the time taken to start in milliseconds for 1.6.1 through to 1.6.7 of AspectJ. Please raise any issues at: https://bugs.eclipse.org/bugs/enter_bug.cgi?product=AspectJ thanks! Andy
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