java - Eclipse quicktip wont show "import" suggestions in Linux Ubuntu and Centos -

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although i've seen question asked on multiple sites, have not found working solution.

issue: when eclipse tooltips pops up, suggested “import” fields remain blank.

what i've tried:
have changed ubuntu font suggested https://bugs.eclipse.org/bugs/show_bug.cgi?id=412021
have change foreground/background colors suggested https://askubuntu.com/questions/45001/how-to-fix-black-tooltips-in-eclipse , https://plus.google.com/100162564505001485828/posts/whbrbeywpzk

i have tested on centos same issue.
have tried different versions of adt , eclipse

i running ubuntu 13.04 adt eclipse version 4.2.1 enter image description here

this bug identifies problem https://bugs.eclipse.org/bugs/show_bug.cgi?id=412021

to fix, open preferences, go general->appearence->colors , fonts. change font basic -> dialog font "ubuntu". choose droid sans , problem went away.


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