Well when coding in eclipse I tend to hit ctrl-space frequently. Usually you'll see the proposed methods or vars of the class you point at. After installing a special Keppler build from one of our customers I hit ctrl-space and see a screen with just new, nls, runnable and to array:
well thats the new kind of type ahead from the eclipse guys? Ah, not at all!
Just go to Windows->Preferences->Java->Editor->Content Assist->Advanced and activate "Java Proposals" again: