Section 11A. A charitable corporation constituting a public charity organized under the provisions of general or special law, which desires to close its affairs may, by vote of a majority of its board of directors, authorize a petition for its dissolution to be filed in the supreme judicial court setting forth in substance the grounds of the application for dissolution and requesting the court to authorize the administration of its funds for such similar public charitable purposes as the court may determine. The provisions of this section shall constitute the sole method for the voluntary dissolution of any such charitable corporation.