I switched to Eclipse Juno for android development recently.When I press \"ctrl+space\" to see available proposals.But it shows \"No Default Proposals\".
I have the same problem; it occurred after I upgraded to Juno.
My fix: - Window->Preferences->Java->Editor->Content Assist->Advanced - explicitly check Java Proposals - Apply
That fixed it for me. (I don't know why Restore Defaults does not set this, seems like it should but it didn't work for me)