An HDF5 Dataset with an HDF5 NULL Dataspace

{
    "apiVersion": "1.0.0",
    "datasets": {
        "23d3e919-7b53-11e4-961d-3c15c2da029e": {
            "shape": {
                "class": "H5S_NULL"
            }, 
            "type": {
                "base": "H5T_STD_I32LE", 
                "class": "H5T_INTEGER"
            }, 
            "value": null
        }
    }, 
    "groups": {
        "23d2e06b-7b53-11e4-9910-3c15c2da029e": {
            "links": [
                {
		    "class": "H5L_TYPE_HARD",
                    "title": "DS1",
		    "collection": "datasets",
                    "id": "23d3e919-7b53-11e4-961d-3c15c2da029e"
                }
            ]
        }
    }, 
    "root": "23d2e06b-7b53-11e4-9910-3c15c2da029e"
}