The most recent version of the Groovy-Eclipse-Compiler plugin for maven is 2.7.01-01.
The most recent version of the groovy-eclipse-batch artifact is 2.1.1-01. This is available from maven central.
How to use the compiler plugin---Setting up the POM
|Eclipse level||Release update site|
|Eclipse level||Development update site|
The Groovy-Eclipse configurator for m2eclipse is not compatible with AspectJ or Scala. So you cannot use a joint AspectJ/Scala/Groovy project in Eclipse. These languages must be separated into separate sub-projects.