worn-out or junked automobiles, or bodies, engines, tires, parts or accessories thereof are gathered together.”
Carrying their argument to its logical extreme, defendants maintain that the above definition of a junkyard is so excessively broad that any landowner who had on his property as little as a pair of discarded windshield wipers must necessarily, albeit unwittingly, be considered to be operating a junkyard. The defendants urge that such a vague and amorphous definition should be stricken as unconstitutional for failure to conform to the due process requirements.
In response to this contention, plaintiff implies, if not claims, that defendants have no standing to raise the constitutionality of the Scituate ordinance. The basis for this position might be found in Highland Farms Dairy, Inc. v. Agnew, 300 U. S. 608, 57 S. Ct. 549, 81 L.ed. 835, and Smith v. Cahoon, 283 U. S. 553, 51 S. Ct. 582, 75 L.ed. 1264, where it was held that when a statute, apparently valid on its face, requires the issuance of a license as a condition precedent to the practice of a trade or profession, one who is within the terms of the statute but has failed to apply is not at liberty to call into question the constitutionality of the enactment. There is on the other hand, however, respectable authority for the proposition that a person who has applied for and obtained a license is precluded from complaining of the unconstitutionality of the licensing law. See Annotation in 45 A.L.R.2d 1391, at 1400, §5(b), and cases cited therein.
Thus one who desires to test the constitutionality of a statute or ordinance requiring him to procure a license as a precondition to engaging in an occupation faces something of a procedural dilemma in setting the stage for his law suit. See 65 A.L.R.2d 660, at 665, §2(c).
While it is true that defendants have raised the constitutionality of the Scituate junkyard ordinance in a collateral proceeding, as the present litigation is only indirectly related to the licensing ordinance, we feel nonetheless con