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I have been struggling for many months to solve: Missing non-null annotation: inherited method from Set<E> specifies this parameter as @NonNull which occurs on the org.eclipse.ocl.pivot.internal.values.OrderedSetImpl of public class OrderedSetImpl<E> extends LinkedHashSet<E> implements OrderedSet<E> I have eventually tracked the problem to an external annotation for Collection.addAll enforcing a non-null argument, but no corresponding annotation for AbstractCollection.addAll. When I add the extra annotation to make AbstractCollection 'consistent' the problematic message on OrderedSetImpl goes away. We therefore have multiple problems. Primarily that the diagnostic gives no clue as to the actual method (addAll) or classes (Collection/AbstractCollection) that are causing JDT a difficulty. Additionally, surely AbstractCollection should inherit rather than conflict with the Collection external annotation?
This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet. If you have further information on the current state of the bug, please add it. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant. -- The automated Eclipse Genie.
