AbstractContext.close() throws a ConcurrentModificationException

[nkulk]

Hi,

I'd like to report that AbstractContext.close() throws a
ConcurrentModificationException. This happens because it iterates over
the key set of the member table and in the loop body modifies table.
IMO this can be fixed by either iterating over a copy of the key set,
or calling remove() on the iterator.

Regards, Nils

[Henri Yandell]

Thanks Nils,

I've applied the change - by storing the elements to be removed in a
separate list and then removing them in a separate loop.

I went with that as I wasn't convinced that unit tests would be
testing that using the iterator.remove() was working.

Thanks for the report,

Hen