AspectJ/AJDT
From Eclipsepedia
See below for any current known issues and other information regarding AspectJ and the AspectJ Development Tools. For more information on these projects please visit the AspectJ Homepage and the AJDT Homepage
Developer's guide to driving the AJDT build process
Developer's guide to upgrading the AJDT build to a newer version of Eclipse
Developer's guide to building tools on top of AJDT and AspectJ
Developer's guide to integrating a build of AspectJ into AJDT