I\'m using Google Protocol Buffers to generate some Java classes for my project. Using Maven 2 and its \"antrun\" plugin, these classes are freshly generated before compile,
What you should see in your project explorer is a container named "Maven Dependencies" in place of the usual "Referenced libraries". This means m2eclipse is managing your build path.
In my case, to achieve this, I checked "Include Modules" and unchecked "Skip Maven compiler plugin when processing resources" on the "Maven" section of Project->Properties.