Fix Type mismatch #96
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fluentfuture
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Casting the full Function type is a bit verbose.
Can you share which javac version you used that produced this error? That can help me reproduce the error.
At the same time, I've changed the lambda to (E e) -> .... I wonder if this change can fix the compilation.
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Yes it fixed the issue. I use javac 24. |
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Because toKey and toValue return unknown subtypes of K and V, the lambda is inferred as producing Map.Entry<? extends K, ? extends V>, not the exact Map.Entry<K, V> that the collector requires.