if (locationOfKaBoom == null) pfx += "[?]";
if (DEBUG_KABOOM && locationOfKaBoom == null) { pfx += "[?]"; }
         public String toString() {		String pfx = "";		if (DEBUG_EXCEPTION) {			int flags = getFlags();			if (flags == 0)				pfx = "_";			else {				if ((flags & EXCEPTION) != 0) pfx += "e";				if ((flags & PARAM) != 0) pfx += "p";				if ((flags & RETURN_VAL) != 0) pfx += "r";			}		}		if (locationOfKaBoom == null) pfx += "[?]";		switch (getBaseKind()) {		case NULL:			return pfx + "n" + ",";		case CHECKED_NULL:			return pfx + "w" + ",";		case NN:			return pfx + "N" + ",";		case CHECKED_NN:			return pfx + "W" + ",";		case NO_KABOOM_NN:			return pfx + "K" + ",";		case NSP:			return pfx + "s" + ",";		case NN_UNKNOWN:			return pfx + "-" + ",";		case NCP2:			return pfx + "/" + ",";		default:			throw new IllegalStateException("unknown kind of IsNullValue: " + kind);		}	}