/*
 * Copyright (c) 1994, 2018, 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.
 */

package java.lang;

import jdk.internal.HotSpotIntrinsicCandidate;

/**
 * Slightly modified version of java.lang.Object that replaces
 * finalize() by finalizeObject() to avoid overriding in subclasses.
 */
public class Object {

    @HotSpotIntrinsicCandidate
    public Object() {}

    private static native void registerNatives();
    static {
        registerNatives();
    }

    @HotSpotIntrinsicCandidate
    public final native Class<?> getClass();

    @HotSpotIntrinsicCandidate
    public native int hashCode();

    public boolean equals(Object obj) {
        return (this == obj);
    }

    @HotSpotIntrinsicCandidate
    protected native Object clone() throws CloneNotSupportedException;

    public String toString() {
        return getClass().getName() + "@" + Integer.toHexString(hashCode());
    }

    @HotSpotIntrinsicCandidate
    public final native void notify();

    @HotSpotIntrinsicCandidate
    public final native void notifyAll();

    public final native void wait(long timeout) throws InterruptedException;

    public final void wait(long timeout, int nanos) throws InterruptedException {
        if (timeout < 0) {
            throw new IllegalArgumentException("timeout value is negative");
        }

        if (nanos < 0 || nanos > 999999) {
            throw new IllegalArgumentException(
                                "nanosecond timeout value out of range");
        }

        if (nanos >= 500000 || (nanos != 0 && timeout == 0)) {
            timeout++;
        }

        wait(timeout);
    }

    public final void wait() throws InterruptedException {
        wait(0);
    }

    /**
     * Replaces original finalize() method and is therefore not
     * overridden by any subclasses of Object.
     * @throws Throwable
     */
    // protected void finalize() throws Throwable { }
    public void finalizeObject() throws Throwable { }
}
