I don’t know about Eclipse’s failures (god knows I’ve pulled enough hair out trying to fix issues my coworker gets using Eclipse), but could you manage with using the [home] character?
System.out.print("Hello!" + (char)13); System.out.print(" "); System.out.print("Hello");
It’s a kludge compared to
\b for your purpose, but if the output you’re using doesn’t work with one control character, try another! 🙂