The plaintiff, Ari Weitzner, M.D., P.C. (Weitzner), brought a class action complaint in Superior Court for injunctive relief and damages against the defendant, Cynosure, Inc. (Cynosure). A judge denied class certification and subsequently entered judgment on the merits of Weitzner’s individual claims. Weitzner has appealed. He contends (1) that the judge wrongly denied certification of the proposed class of plaintiffs, and (2) *78that the judge should not have adjudicated the merits of his individual claims because the Superior Court lacked jurisdiction over allegations of damages below the level of $25,000. For the following reasons, we affirm.

Background. The following facts emerge from the record as undisputed. Weitzner conducts an ophthalmology practice in Brooklyn, New York; Cynosure is a manufacturer of laser and light-based technology with a principal place of business in Massachusetts. Between April 7, 2004, and May 20, 2004, Cynosure sent Weitzner four unsolicited facsimile advertisements.

On May 24, 2005, Weitzner filed the class action complaint in Superior Court alleging that Cynosure had violated the Telephone Consumer Protection Act of 1991 (TCPA), 47 U.S.C. § 227. The TCPA prohibits, inter alla, the transmission of unsolicited advertisements via facsimile. 47 U.S.C. § 227(b)(1)(C). Weitzner requested $1,500 in statutory damages for each violation of the TCPA and an order enjoining Cynosure from “continuing to send unsolicited facsimile advertisements.” See 47 U.S.C. § 227(b)(3). Three months later, in August of 2005, Cynosure voluntarily suspended its facsimile transmission program. In February of 2006, a judge denied Cynosure’s motion to dismiss the complaint. Weitzner subsequently ignored Cynosure’s offer to confess judgment on his individual claims.

In April of 2008, Weitzner moved for certification of a nationwide class composed of:

“[a] 11 individuals and entities who received a facsimile advertisement transmitted on behalf of Cynosure, Inc. between May 29, 2003 and June 30, 2005 [the class period] at a facsimile number purchased from Westfax, Inc. or Ix-ion, Inc.”1

Weitzner alleged that Cynosure had sent more than 3,265,000 unsolicited facsimile advertisements during the twenty-five month class period.2

*79In January of 2012, a second judge denied class certification on two grounds. First, he ruled that the exercise of personal jurisdiction over the nationwide class would not comport with the due process requirements of the Fourteenth Amendment to the United States Constitution because Weitzner sought predominantly monetary relief and the out-of-State plaintiffs could neither opt out of the class action nor satisfy the “traditional minimum contacts test.” Second, he concluded that Weitzner did not satisfy the commonality, typicality, predominance, and superiority requirements of Mass.R.Civ.P. 23, as amended, 452 Mass. 1401 (2008).3 The judge reasoned that Cynosure’s liability to each class plaintiff turned, in part, on “whether there was an existing business relationship between an individual class plaintiff and Cynosure or whether Cynosure, through [a] third-party, obtained that plaintiff’s facsimile number from a source through which the plaintiff voluntarily agreed to such a distribution.”4

After the denial of class certification, the same judge entered a final judgment dismissing Weitzner’s class action allegations with prejudice, awarding Weitzner $6,000 in damages for receipt of the four unsolicited facsimile advertisements, and permanently enjoining Cynosure from sending Weitzner unsolicited facsimile advertisements in the future. The judge did not address Weitzner’s argument that the denial of class certification should have resulted in dismissal of the action without prejudice.

*80Analysis. 1. Denial of class certification, a. Standard of review. “A judge has broad discretion to certify or decertify a class .... Indicia of an abuse of discretion include errors of law or judicial action that is ‘arbitrary, unreasonable, or capricious . . . such as when a judge grants class status on the basis of speculation or generalization regarding satisfaction of the requirements of rule 23, or denies class status by imposing, at the certification stage, the burden of proof that will be required of the plaintiffs at trial.’ ” Salvas v. Wal-Mart Stores, Inc., 452 Mass. 337, 361 (2008), quoting from Weld v. Glaxo Wellcome Inc., 434 Mass. 81, 85 (2001). In this instance, the judge committed no abuse of discretion by either “errors of law” or an “arbitrary, unreasonable, or capricious” determination.

b. Due process requirement. If a class action embodies “claims wholly or predominantly for money judgments,” a forum State court may “bind an absent plaintiff concerning a claim for money damages or similar relief at law” if it provides “minimal procedural due process protection.” Phillips Petroleum Co. v. Shutts, 472 U.S. 797, 811-812 & n.3 (1985) (Shutts). That protection includes notice, the opportunity to be heard and to participate in the litigation, and the opportunity to opt out of the class action. The nonresident members of the proposed class of plaintiffs possess a claim or a chose in action in the nature of a “constitutionally recognized property interest.” Id. at 807, citing Mullane v. Central Hanover Bank & Trust Co., 339 U.S., 306, 313-314 (1950). An adverse judgment by a State court adjudication of the class action “may extinguish the chose in action forever through res judicata.” Shutts, supra at 807. The procedural safeguards respect the absentee’s property interest. Their implementation is important because due process does not require the forum State to have the same minimum contacts with the nonresident class plaintiff as it would require for jurisdiction over a nonresident defendant. Id. at 808-809.5

The Supreme Judicial Court has interpreted Shutts as “holding *81that a court may assert personal jurisdiction over a nonresident plaintiff if basic due process protections exist, or if the minimum contacts test is satisfied.” Moelis v. Berkshire Life Ins. Co., 451 Mass. 483, 487-488 (2008) (Superior Court judge properly denied nationwide class certification under the consumer protection act, G. L. c. 93A, § 9 [2], for purchases from Massachusetts company of certain life insurance policies for lack of both opt out opportunity and minimum contacts).

Here, neither basis supports the exercise of personal jurisdiction over the out-of-State class plaintiffs. Rule 23 does not allow an individual to opt out of a Massachusetts class action, Weld v. Glaxo Wellcome Inc., 434 Mass, at 84; and Weitzner does not dispute that the out-of-State class plaintiffs do not possess “minimum contacts” with Massachusetts.6 The judge correctly refused to certify the nationwide class on the ground that the exercise of personal jurisdiction over the out-of-State class plaintiffs would have violated the due process clause of the Fourteenth Amendment.

Finally, the record contradicts Weitzner’s contention that the suit sought “predominantly injunctive relief” so as to free him *82from those due process constraints upon a class action damages suit. See Allison v. Citgo Petroleum Corp., 151 F.3d 402, 415 (5th Cir. 1998) (“monetary relief predominates in [Fed.R.Civ.P. 23] [b] [2] class actions unless it is incidental to requested injunctive or declaratory relief”). By the time of Weitzner’s motion for class certification, Cynosure had suspended its facsimile transmission program and submitted a sworn affidavit that it would not resume the program unless it complied with the TCPA, and neither Weitzner nor the proposed class members had received an allegedly unsolicited facsimile advertisement from Cynosure in approximately three years. At the same time, Weitzner requested nearly $5 billion in damages upon the basis of the allegation that Cynosure had sent more than 3,265,000 unsolicited facsimile advertisements in the past.7

2. Superior Court jurisdiction over the individual damages claims. Weitzner argues that the judge wrongly proceeded to enter final judgment on the merits of his individual damages claims. In reliance on Zizza v. Zizza, 456 Mass. 401 (2010) (Zizza), he contends that the judge, after denial of class certification, “should have dismissed the action without prejudice for lack of jurisdiction.”8

In Zizza, the plaintiff filed an action in Superior Court alleging that her former husband had breached an agreement for child support. Id. at 402. She sought “payment of the alleged child support arrearages” and an order “requiring $262 to be deducted from [father’s] weekly pay and given directly to [her].” Id. at 403. After a hearing, a Superior Court judge dismissed the complaint for failure to satisfy the amount in controversy requirement applicable to the Superior Court. Id. at 404. See G. L. c. 212, § 3, inserted by St. 2004, c. 252, § 2 (civil action for money damages filed in the Superior Court *83may proceed to trial in that court “only if there is no reasonable likelihood that recovery by the plaintiff will be less than or equal to $25,000”). The judge rejected the plaintiff’s argument that the court had jurisdiction over the complaint “because one type of relief sought in the complaint was ... an equitable remedy [an order for specific performance] . . . and . . . the Superior Court has the general authority to order such equitable relief.” Zizza, supra at 404. See G. L. c. 214, § 1 (Superior Court has broad equity jurisdiction).9 After a single justice of this court vacated the order of dismissal and reported the case to a panel of the court, the Supreme Judicial Court transferred the case on its own motion. Zizza, supra at 404-405.

The court concluded that the civil one-trial reform legislation of 2004, see St. 2004, c. 252, now codified in part in G. L. c. 212, § 3, “vest[ed] discretion in [a] Superior Court judge to determine whether or not to exercise jurisdiction over the complaint in such circumstances, thereby either retaining the case for decision in the Superior Court despite the absence of the threshold amount in controversy, or dismissing the case despite the equity claim.” Zizza, supra at 408. For the exercise of that discretion it recommended “without limitation” such criteria as:

“[1] the relative predominance of the equitable and damages claims in the particular case — put another way, whether the gravamen of the complaint sounds in equity or law; [2] whether the scope of the action, even with the equity claim included, is more similar to actions fitting within the $25,000 or less amount in controversy limitation; and [3] whether the resolution of the matter will be substantially delayed by dismissal or particularly costly to the parties because of the number of filings that will need to be repeated in the District Court.”

Id. at 408 n.13.

Appellate review of a judge’s exercise of such ancillary *84jurisdiction proceeds under the usual respectful standard of abuse of discretion; it tests for the presence of “whimsy, caprice, or arbitrary or idiosyncratic notions.” Boulter-Hedley v. Boulter, 429 Mass. 808, 811 (1999) (citation omitted). See Bucchiere v. New England Tel. & Tel. Co., 396 Mass. 639, 642 (1986); Berube v. McKesson Wine & Spirits Co., 7 Mass. App. Ct. 426, 433 (1979).

Weitzner computes these factors to favor dismissal without prejudice of his surviving individual damages claim because it sounds in law and falls below the $25,000 threshold. The mechanical application of the guidelines should not frustrate the fundamental purpose of the one-trial reform legislation of 2004. For both the Superior and District Courts, the overriding objective of their common legal and equitable jurisdictional authority became the efficient adjudication of the merits of a case. See Sperounes v. Farese, 449 Mass. 800, 804-807 (2007) (discussing the expanded and consolidated authority of the District Court to provide both monetary and injunctive relief as a means “to increase efficiency in the trial courts” by elimination of the former system of delay and duplication between the two courts); Zizza, 456 Mass, at 407 (the “purpose of the one-trial system was to increase the efficacy of trials in the District and Superior Courts over the inefficient [prior] remand-removal system”).

In the present circumstances the judge exercised sound discretion to retain jurisdiction and to resolve the case. The claims had been pending in the Superior Court for more than seven years; the judge who denied class certification and entered judgment had become familiar with the facts and the applicable law; Cynosure had offered to confess judgment; and the remaining issues of liability and damages were straightforward. The judge acted with sensible efficiency and fairness. Full and final judgment was proper.

Judgment affirmed.