Agrupar Objetos num list[RESOLVIDO]

import java.util.*;

public class Test {
	private List<String[]> list = new LinkedList<String[]>();

	public static void main(String[] args) {
		Test sh = new Test();
		sh.list.add(new String[] { "A110", "1" });
		sh.list.add(new String[] { "A111", "5" });
		sh.list.add(new String[] { "A111", "1" });
		sh.list.add(new String[] { "A111", "2" });
		sh.list.add(new String[] { "A999", "3" });
		List<String[]> aux = new LinkedList<String[]>();
		boolean[] flags = new boolean[sh.list.size()];
		for (int i = 0; i < sh.list.size(); ++i) {
			if (!flags[i]) {
				String[] temp = { sh.list.get(i)[0], sh.list.get(i)[1] };
				for (int j = 0; j < sh.list.size(); j++) {
					if (i != j && !flags[j]) {
						if (sh.list.get(i)[0].equals(sh.list.get(j)[0])) {
							temp[1] = (Integer.parseInt(temp[1]) + Integer.parseInt(sh.list.get(j)[1]))+"";
							flags[j] = true;
						}
					}
				}
				aux.add(temp);
			}
		}
		sh.list = aux;
		for (String[] i : sh.list) {
			System.out.println(i[0] + " " + i[1]);
		}
	}
}