@Override
    public void destroy(boolean waitFor) {
        logger.log(Level.FINE, "IGLESContext destroy");
        listener.destroy();
        needClose.set(true);
        if (waitFor) {
            //waitFor(false);
        }
    }
Accesses the listener that receives events related to this context.

@return the pre-existing instance
jme3-ios/src/main/java/com/jme3/system/ios/IGLESContext.java