How can I get Eclipse to insert tabs instead of spaces for Java content assist?

Question

Is there any way to persuade Eclipse to use tabs instead of spaces for indenting its built-in Java content assist proposals (such as when creating an empty method which over

Answer 1

Yet another solution that "worked for me" even if the other solutions didn't work (Version: 3.8.1):

Preferences > Java > Code Style > Formatter > Edit > Indentation > Use spaces to indent wrapped lines - Set unchecked

This is essentially the "smart tabs" option. It works for the formatter, but it incorrectly sets code generation into using spaces only. Annoyingly, the solution breaks the formatter.