/*

 * Copyright (c) 2008, 2015, 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.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 * questions.

 */

import java.io.*;

import java.util.*;

/*

 * @test

 * @bug 6715251

 * @summary javap should be consistent with javac and return 2 if given no arguments

 * @modules jdk.jdeps

 */

public class T6715251 {

    public static void main(String... args) throws Exception {

        new T6715251().run();

    }

    void run() throws Exception {

        String testClasses = System.getProperty("test.classes", ".");

        test(2);

        test(0, "-help");

        test(0, "-version");

        test(0, "-fullversion");

        test(0, "-classpath", testClasses, "T6715251");

        if (errors > 0)

            throw new Exception(errors + " errors received");

    }

    void test(int expect, String ... args) {

        int rc = javap(args);

        if (rc != expect)

            error("bad result: expected: " + expect + ", found " + rc + "\n"

                  + log);

    }

    int javap(String... args) {

        StringWriter sw = new StringWriter();

        PrintWriter pw = new PrintWriter(sw);

        int rc = com.sun.tools.javap.Main.run(args, pw);

        log = sw.toString();

        return rc;

    }

    void error(String msg) {

        System.err.println(msg);

        errors++;

    }

    String log;

    int errors;

}