How does Eclipse work on new Retina MacBook Pros?
To enable a retina rendered Eclipse

From: https://bugs.eclipse.org/bugs/show_bug.cgi?id=382972

Here's the workaround:

Do "Show package contents" on the Eclipse.app.  Edit Contents/Info.plist using your favorite text editor.  Just
above 

&lt;/dict&gt;
&lt;/plist&gt;


Place this:

&lt;key&gt;NSHighResolutionCapable&lt;/key&gt;
&lt;true/&gt;


Then, make a copy of the app so that OSX will notice the change. 
Now, the info window will not show "Open in Low Resolution" as checked.  Launch
Eclipse and enjoy your new retina awesomeness.