- Fix new spotbug warnings after fix was applied

Change-Id: I52af6bdc2872faefabeb24a3fa6997fd98d3d04f
Reviewed-on: https://git.eclipse.org/r/c/jdt/eclipse.jdt.ui/+/183870
Tested-by: JDT Bot <jdt-bot@eclipse.org>
Tested-by: Jeff Johnston <jjohnstn@redhat.com>
Reviewed-by: Jeff Johnston <jjohnstn@redhat.com>