test/jdk/java/util/prefs/PrefsSpi.java

/*
 * Copyright (c) 2009, 2018, 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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import java.util.prefs.Preferences;

/*
 * main class used by regtest PrefsSpiTest.java
 */
public class PrefsSpi {

    public static void main (String[] args) throws Exception {
        if (args.length != 1)
            throw new Exception("Usage: java PrefsSpi REGEXP");

        String className = Preferences.userRoot().getClass().getName();
        System.out.printf("className=%s%n", className);

        if (! className.matches(args[0]))
            throw new Exception("Preferences class name \"" + className
                                + "\" does not match regular expression \""
                                + args[0] + "\".");
    }
}