Documentation says getSupportedAttributeValues for Copies should return CopiesSupported not Copies. Because of this, the code below results in ClassCastException.

import javax.print.*;
import javax.print.attribute.*;
import javax.print.attribute.standard.*;

public class GetCopiesSupported {

    public static void main(String args[]) {
    PrintService service = PrintServiceLookup.lookupDefaultPrintService();

        if (service != null) {
            CopiesSupported c = (CopiesSupported)
               service.getSupportedAttributeValues(Copies.class,
                                                   null, null);

           System.out.println("CopiesSupported : "+c);
    }
    }
}