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Functional structures and utilities for Java 8 and lambdas

There is a newer version: 0.27

package no.finn.lambdacompanion;

import java.util.Collection;
import java.util.Map;
import java.util.stream.Collector;
import java.util.stream.Collectors;
import java.util.stream.Stream;

public final class Streams {

    public static  ExtendedStream stream(final Collection collection) {
        return stream(collection.stream());
    }

    public static  ExtendedStream stream(final Stream stream) {
        return ExtendedStream.of(stream);
    }

    public static , K, U> Collector> entryToMap() {
        return Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue);
    }

}