RegisterNullService.java

/*
 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
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 */

/*
 * @test
 * @bug 8059219
 * @summary Should not be able to register null service.
 * @run main RegisterNullService
*/

import javax.print.PrintService;
import javax.print.PrintServiceLookup;

public class RegisterNullService {
    public static void main (String [] args) throws RuntimeException {

        boolean registered = PrintServiceLookup.registerService(null);
        if (registered) {
           throw new RuntimeException("Null service was registered");
        }
        PrintService[] services =
            PrintServiceLookup.lookupPrintServices(null, null);
        for (int i = 0; i < services.length; i++) {
            if (services[i] == null) {
                throw new RuntimeException("Null service found.");
            }
        }
    }
}