/*

 * Copyright (c) 2010, 2016, 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 7004698

 * @summary javap does not output CharacterRangeTable attributes correctly

 * @modules jdk.jdeps/com.sun.tools.javap

 */

import java.io.*;

import java.util.*;

import java.util.regex.*;

public class T7004698 {

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

        new T7004698().run();

    }

    void run() throws Exception {

        File srcDir = new File(System.getProperty("test.src"));

        File srcFile = new File(srcDir, T7004698.class.getSimpleName() + ".java");

        File classesDir = new File(".");

        compile("-Xjcov",

                "-d", classesDir.getPath(),

                srcFile.getPath());

        File classFile = new File(classesDir, T7004698.class.getSimpleName() + ".class");

        String out = javap("-v", classFile.getPath());

        Pattern attrBody = Pattern.compile("[0-9a-f, ]+//[-0-9a-z:, ]+");

        Pattern endOfAttr = Pattern.compile("(^$|[A-Z][A-Za-z0-9_]+:.*|})");

        boolean inAttr = false;

        int count = 0;

        int errors = 0;

        for (String line: out.split(System.getProperty("line.separator"))) {

            line = line.trim();

            if (line.equals("CharacterRangeTable:")) {

                inAttr = true;

                count++;

            } else if (inAttr) {

                if (endOfAttr.matcher(line).matches()) {

                    inAttr = false;

                } else if (!attrBody.matcher(line).matches()) {

                    System.err.println("unexpected line found: " + line);

                    errors++;

                }

            }

        }

        if (count == 0)

            throw new Exception("no attribute instances found");

        if (errors > 0)

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

    }

    void compile(String... args) throws Exception {

        StringWriter sw = new StringWriter();

        PrintWriter pw = new PrintWriter(sw);

        int rc = com.sun.tools.javac.Main.compile(args, pw);

        pw.close();

        String out = sw.toString();

        if (!out.isEmpty())

            System.err.println(out);

        if (rc != 0)

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

    }

    String javap(String... args) throws Exception {

        StringWriter sw = new StringWriter();

        PrintWriter pw = new PrintWriter(sw);

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

        pw.close();

        String out = sw.toString();

        if (!out.isEmpty())

            System.err.println(out);

        if (rc != 0)

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

        return out;

    }

}