/*

 * Copyright (c) 2007, 2009, 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

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/*

 * @test

 * @bug 6627362

 * @summary javac generates code that uses array.clone,

 *          which is not available on JavaCard

 */

import java.io.*;

import java.lang.reflect.*;

import java.net.*;

import java.util.*;

public class T6627362 {

    static String testSrc = System.getProperty("test.src", ".");

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

        new T6627362().run();

    }

    public void run() throws Exception {

        testStandard();

        testNoClone();

        if (errors > 0)

            throw new Error(errors + " test cases failed");

    }

    void testStandard() throws Exception {

        // compile and disassemble E.java, check for reference to Object.clone()

        File x = new File(testSrc, "x");

        String[] jcArgs = { "-d", ".",

                            new File(x, "E.java").getPath() };

        compile(jcArgs);

        String[] jpArgs = { "-classpath", ".", "-c", "E" };

        StringWriter sw = new StringWriter();

        javap(new PrintWriter(sw, true), jpArgs);

        check(sw.toString(), "Method \"[LE;\".clone:()Ljava/lang/Object;");

        callValues();

    }

    void testNoClone() throws Exception {

        // compile and disassemble E.java, using modified Object.java,

        // check for reference to System.arraycopy

        File x = new File(testSrc, "x");

        String[] jcArgs = { "-d", ".",

                            new File(x, "E.java").getPath(),

                            new File(x, "Object.java").getPath()};

        compile(jcArgs);

        String[] jpArgs = { "-classpath", ".", "-c", "E" };

        StringWriter sw = new StringWriter();

        javap(new PrintWriter(sw, true), jpArgs);

        check(sw.toString(), "// Method java/lang/System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V");

        callValues();

    }

    void compile(String... args) {

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

        if (rc != 0)

            throw new Error("javac failed: " + Arrays.asList(args) + ": " + rc);

    }

    void javap(PrintWriter out, String... args) throws Exception {

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

        if (rc != 0)

            throw new Error("javap failed: " + Arrays.asList(args) + ": " + rc);

    }

    void check(String s, String require) {

        System.out.println("Checking:\n" + s);

        if (s.indexOf(require) == -1) {

            System.err.println("Can't find " + require);

            errors++;

        }

    }

    void callValues() {

        try {

            File dot = new File(System.getProperty("user.dir"));

            ClassLoader cl = new URLClassLoader(new URL[] { dot.toURL() });

            Class<?> e_class = cl.loadClass("E");

            Method m = e_class.getMethod("values", new Class[] { });

            //System.err.println(m);

            Object o = m.invoke(null, (Object[]) null);

            List<Object> v = Arrays.asList((Object[]) o);

            if (!v.toString().equals("[a, b, c]"))

                throw new Error("unexpected result for E.values(): " + v);

        } catch (Exception e) {

            throw new Error(e);

        }

    }

    int errors;

}