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import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;
class MyClass {
private static void test() {
List<String> collect = Arrays.asList("foo", "bar")
.stream()
.flatMap(MyClass::mapper)
.filter(s -> s.startsWith("foo"))
.collect(Collectors.toList());
}
private static Stream<String> mapper(String s) {
return Stream.of(s);
}
}
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