private void testPlaySourceInstance() {
        try {
            AudioNode nature = new AudioNode(assetManager,
                    "Sound/Environment/Nature.ogg", AudioData.DataType.Stream);
            audioRenderer.playSourceInstance(nature);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
java.lang.UnsupportedOperationException: Cannot play instances of audio streams. Use play() instead.
	at com.jme3.audio.openal.ALAudioRenderer.playSourceInstance()
jme3-examples/src/main/java/jme3test/audio/TestWav.java