Fix leak in test and double free in corner case #9264
Merged
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This fixes #9261
assuming that the fix from #9257 also goes in.
The leak was in a test and I added a withResource and AutoCloseable for an iterator to make it work.
The double free was in a really rare corner case where we are already going to throw an exception that would bring down the task, so it is not too critical. It is not really a use after free in this case. It is a little bit ugly because I had to add in a layer of indirection to make the code work without refactoring a huge chunk of code.