proposed in anonymous class

Signed-off-by: Snjezana Peco <snjezana.peco@redhat.com>
Change-Id: I1f9508e79c34eb7ae534fb6fc924889fd65bbae0
Reviewed-on: https://git.eclipse.org/r/c/jdt/eclipse.jdt.core/+/183339
Reviewed-by: Stephan Herrmann <stephan.herrmann@berlin.de>
Tested-by: JDT Bot <jdt-bot@eclipse.org>