openide/java/java-tests/testData/inspection/inefficientStreamCount/afterFlatMapGenericParameter.java

// "Replace with 'Stream.mapToLong().sum()'" "true-preview"

import java.util.List;
import java.util.Map;

public class Main {
  private String s;

  public Main(List<Map<String, String>> s) {
    long count = s.stream().mapToLong(map -> map.values().size()).sum();
  }
}