public CollisionResult getCollisionDirect(int index) {
        if (results == null) {
            throw new IndexOutOfBoundsException("Index: " + index + ", Size: 0");
        }
        return results.get(index);
    }
Internal use only.

@param index the zero-based index of the desired result
@return the pre-existing instance
jme3-core/src/main/java/com/jme3/collision/CollisionResults.java