/*

 * Copyright (c) 2004, 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 4990346

 * @summary Verify autoboxed values are cached as required.

 * @author Joseph D. Darcy

 */

public class BoxingCaching {

    static boolean verifyBooleanCaching() {

        boolean cached = true;

        Boolean results[] = new Boolean[2];

        results[0] = false;

        results[1] = true;

        Boolean B;

        B = false;

        if (B != results[0]) {

                cached = false;

                System.err.println("Boolean value " + B +

                                   " is not cached appropriately.");

        }

        B = true;

        if (B != results[1]) {

                cached = false;

                System.err.println("Boolean value " + B +

                                   " is not cached appropriately.");

        }

        return cached;

    }

    static boolean verifyByteCaching() {

        boolean cached = true;

        Byte results[] = new Byte[-(-128) + 127 +1];

        for(int i = 0; i < results.length; i++)

            results[i] = (byte)(i-128);

        for(int i = 0; i < results.length; i++) {

            Byte B = (byte)(i-128);

            if (B != results[i]) {

                cached = false;

                System.err.println("Byte value " + B +

                                   " is not cached appropriately.");

            }

        }

        for(int i = Byte.MIN_VALUE; i < Byte.MAX_VALUE; i++) {

            Byte B;

            B = (byte)i;

            if (B.byteValue() != i) {

                cached = false;

                System.err.println("Erroneous autoboxing conversion for " +

                                   "byte value " + i + " .");

            }

        }

        return cached;

    }

    static boolean verifyCharacterCaching() {

        boolean cached = true;

        Character results[] = new Character[127 +1];

        for(int i = 0; i < results.length; i++)

            results[i] = (char)i;

        for(int i = 0; i < results.length; i++) {

            Character C = (char)i;

            if (C != results[i]) {

                cached = false;

                System.err.println("Char value " + C +

                                   " is not cached appropriately.");

            }

        }

        for(int i = Character.MIN_VALUE; i < Character.MAX_VALUE; i++) {

            Character C;

            C = (char)i;

            if (C.charValue() != i) {

                cached = false;

                System.err.println("Erroneous autoboxing conversion for " +

                                   "char value " + i + " .");

            }

        }

        return cached;

    }

    static boolean verifyIntegerCaching() {

        boolean cached = true;

        Integer results[] = new Integer[-(-128) + 127 +1];

        for(int i = 0; i < results.length; i++)

            results[i] = (i-128);

        for(int i = 0; i < results.length; i++) {

            Integer I = (i-128);

            if (I != results[i]) {

                cached = false;

                System.err.println("Integer value " + I +

                                   " is not cached appropriately.");

            }

        }

        for(int i = -256; i < 255; i++) {

            Integer I;

            I = i;

            if (I.intValue() != i) {

                cached = false;

                System.err.println("Erroneous autoboxing conversion for " +

                                   "int value " + i + " .");

            }

        }

        return cached;

    }

    static boolean verifyLongCaching() {

        boolean cached = true;

        Long results[] = new Long[-(-128) + 127 +1];

        for(int i = 0; i < results.length; i++)

            results[i] = (long)(i-128);

        for(int i = 0; i < results.length; i++) {

            Long L = (long)(i-128);

            if (L != results[i]) {

                cached = false;

                System.err.println("Integer value " + L +

                                   " is not cached appropriately.");

            }

        }

        for(int i = -256; i < 255; i++) {

            Integer L;

            L = i;

            if (L.longValue() != i) {

                cached = false;

                System.err.println("Erroneous autoboxing conversion for " +

                                   "int value " + i + " .");

            }

        }

        return cached;

    }

    static boolean verifyShortCaching() {

        boolean cached = true;

        Short results[] = new Short[-(-128) + 127 +1];

        for(int i = 0; i < results.length; i++)

            results[i] = (short)(i-128);

        for(int i = 0; i < results.length; i++) {

            Short S = (short)(i-128);

            if (S != results[i]) {

                cached = false;

                System.err.println("Short value " + S +

                                   " is not cached appropriately.");

            }

        }

        for(int i = Short.MIN_VALUE; i < Short.MAX_VALUE; i++) {

            Short S;

            S = (short)i;

            if (S.shortValue() != i) {

                cached = false;

                System.err.println("Erroneous autoboxing conversion for " +

                                   "short value " + i + " .");

            }

        }

        return cached;

    }

    public static void main(String argv[]) {

        boolean cached = true;

        cached &= verifyBooleanCaching();

        cached &= verifyByteCaching();

        cached &= verifyCharacterCaching();

        cached &= verifyIntegerCaching();

        cached &= verifyLongCaching();

        cached &= verifyShortCaching();

        if (!cached)

            throw new RuntimeException("Values not cached appropriately.");

    }

}