Merge "Replace LinkedList by a more performant collection"

import java.io.File;

import java.io.IOException;

import java.util.ArrayDeque;

import java.util.ArrayList;

import java.util.Collection;

import java.util.LinkedList;

import java.util.List;

import java.util.Objects;

    }

    private static boolean hasInterestingFiles(File dir) {

        final LinkedList<File> explore = new LinkedList<>();

        final ArrayDeque<File> explore = new ArrayDeque<>();

        explore.add(dir);

        while (!explore.isEmpty()) {

            dir = explore.pop();