How to get backspace \b to work in Eclipse's console?
Eclipse Bug #76936. I wouldn't count on them to fix it, and there are no workarounds listed.
You might have luck finding a plugin that contributes a more advanced console.
Well, it's true you can't use backspace \b to remove the displayed progress, but you could remove it by clearing the console with a loop calling println. Of course this kluge won't clear your log file!