/*

 * 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.

 *

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

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 * questions.

 */

/*

 * @test

 * @bug 8032819

 * @summary Extra empty line between field declarations for the "-v -c" and "-v -l" combination of options

 * @compile -g T8032819.java

 * @run main T8032819

 */

import java.io.*;

import java.util.*;

public class T8032819 {

    static class Fields {

        int f1;

        int f2;

    }

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

        new T8032819().run();

    }

    void run() throws Exception {

        Class<?> clazz = Fields.class;

        test(clazz);

        test(clazz, "-c");

        test(clazz, "-l");

        test(clazz, "-l", "-c");

        test(clazz, "-v");

        test(clazz, "-v", "-c");

        test(clazz, "-v", "-l");

        test(clazz, "-v", "-l", "-c");

        if (errors > 0)

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

    }

    static final String sep = System.getProperty("line.separator");

    static final String doubleBlankLine = sep + sep + sep;

    void test(Class<?> clazz, String... opts) throws Exception {

        System.err.println("test " + Arrays.asList(opts));

        List<String> args = new ArrayList<String>();

        args.addAll(Arrays.asList(opts));

        args.addAll(Arrays.asList("-classpath", System.getProperty("test.classes")));

        args.add(clazz.getName());

        StringWriter sw = new StringWriter();

        PrintWriter pw = new PrintWriter(sw);

        int rc = com.sun.tools.javap.Main.run(args.toArray(new String[args.size()]), pw);

        pw.close();

        String out = sw.toString();

        if (rc != 0)

            throw new Exception("javap failed unexpectedly: rc=" + rc);

        int count = 0;

        int i = out.indexOf(doubleBlankLine, 0);

        while (i != -1) {

            count++;

            i = out.indexOf(doubleBlankLine, i + doubleBlankLine.length());

        }

        if (count > 0)

            error(count + " double blank lines found");

    }

    void error(String msg) {

        System.err.println("Error: " + msg);

        errors++;

    }

    int errors = 0;

}