private static NonNullParamPropertyDatabase createIfNeeded(NonNullParamPropertyDatabase database) { return database != null ? database : new NonNullParamPropertyDatabase();
private static ParameterNullnessPropertyDatabase createIfNeeded(ParameterNullnessPropertyDatabase database) { return database != null ? database : new ParameterNullnessPropertyDatabase();
	private static NonNullParamPropertyDatabase createIfNeeded(NonNullParamPropertyDatabase database) {		return database != null ? database : new NonNullParamPropertyDatabase();	}