@Override
    public int hashCode() {
        int hash = 7;
        hash = 67 * hash + (super.hashCode());
        hash = 67 * hash + (this.stream ? 1 : 0);
        hash = 67 * hash + (this.streamCache ? 1 : 0);
        return hash;
    }
Specifies if the stream cache is used.

When enabled, the audio stream will
be read entirely but not decoded, allowing features such as
seeking, looping and determining duration.

@return true if stream cache is in use, otherwise false
jme3-core/src/main/java/com/jme3/audio/AudioKey.java