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Map doesn't implement the Collection interface. https://github.com/openjdk/jdk/blob/master/src/java.base/share/classes/java/util/Map.java#L163 https://github.c

by vips7L 3y ago

Map doesn't implement the Collection interface. https://github.com/openjdk/jdk/blob/master/src/java.base/share/classes/java/util/Map.java#L163 https://github.com/openjdk/jdk/blob/master/src/java.base/sha...