PortMixerProvider.java 文件源码

public Mixer getMixer(Mixer.Info info) {
    synchronized (PortMixerProvider.class) {
        for (int i = 0; i < infos.length; i++) {
            if (infos[i].equals(info)) {
                return getDevice(infos[i]);
            }
        }
    }
    throw new IllegalArgumentException("Mixer " + info.toString()
                                       + " not supported by this provider.");
}