Java Swing - 如何使用Position.Bias查找项目索引

import javax.swing.JList;

public class Main {
  public static void main(String[] args) {
    String[] items = { "A", "B", "C", "D" };
    JList list = new JList(items);

    String prefix = "b";

    int start = 0;
    
    int itemIx = list.getNextMatch(prefix, start, javax.swing.text.Position.Bias.Forward);
    System.out.println(itemIx);
  }
}