This change is only there to fix warning issued by Eclipse.
It should have absolutely no impact on the program logic.
Change-Id: Ie0e242ac6c167297d33de19902340b0f6ecae9e1
This also fixes a small inconsistency upon clicking on whitespace
twice in a row.
Also add some unit tests for an introduced and an existing method.
Change-Id: I1be2fb53c9624f4d0f5299009632cb4384fdfc15