The entrySet() javadoc does not explicitely say the key in the returned Set is wrapped into a List (modifiable or not, that's another point).
However, the current Sun's implementation is done that way so there is somewhat a disconnect between specification and implementation.
I wonder if the sentence '/Each key contained in this set is an unmodifiable List./' taken from keySet() javadoc should not be present too in entrySet() javadoc, possibly rephrased though ?
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