如何用AudioSystem预加载不同的剪辑？

import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.UnsupportedAudioFileException;
import java.io.IOException;
import java.net.URL;

public Clip loadClip(String filePath) {
    Clip clip = null;
    try {
        URL url = getClass().getResource(filePath);
        AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(url);
        clip = AudioSystem.getClip();
        clip.open(audioInputStream);
    } catch (UnsupportedAudioFileException | IOException | LineUnavailableException e) {
        e.printStackTrace();
    }
    return clip;
}

Clip clip1 = loadClip("/audio/clip1.wav");
Clip clip2 = loadClip("/audio/clip2.wav");