[454786] getDeclaredOperations should not inspect the hierarchy

https://bugs.eclipse.org/bugs/show_bug.cgi?id=454786

Change-Id: Icc81807f08087a75a0a39792a32a1e89676f206c
Signed-off-by: Lorenzo Bettini <lorenzo.bettini@gmail.com>
Merge "[454786] getDeclaredOperations should not inspect the hierarchy"
Added @Override annotations to interface implementations due to recent switching of Java compatibility level to 6

Signed-off-by: Miro Spönemann <miro.spoenemann@itemis.de>