Disable Sonar violation on class loading delegation

Signed-off-by: Clement Escoffier <clement.escoffier@gmail.com>
Improve iteration using Map.Entry instead of key set.

Signed-off-by: Clement Escoffier <clement.escoffier@gmail.com>
Remove not used method.

Signed-off-by: Clement Escoffier <clement.escoffier@gmail.com>
Small refactorings

Signed-off-by: Clement Escoffier <clement.escoffier@gmail.com>