I'd like to show the name of the author of each line in my Java files. I am already using FishEye (http://www.atlassian.com/software/fisheye/) but I'd like to have this feature within my Eclipse Java editor.
There is a similar feature in Eclipse: select Team / Show Annotation... in the right click menu on a Java file. It should work with various team providers (I only have experiences with CSV and SVN).
Short description of this feature is available here.
UPDATE: for the Eclipse EGit team provider, the corresponding menu is called Team / Show revision information. See more information in the excellent EGit User Guide.