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-/* VMObject.java -- Reference implementation for VM hooks used by Object
- Copyright (C) 1998, 2002, 2005 Free Software Foundation
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath 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 for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-package java.lang;
-
-/**
- * Object is the ultimate superclass of every class (excepting interfaces).
- * As such, it needs help from the VM.
- *
- * @author John Keiser
- * @author Eric Blake (ebb9@email.byu.edu)
- */
-final class VMObject
-{
- /**
- * Returns the runtime {@link Class} of a given Object.
- *
- * @param obj the object to return the class for.
- *
- * @return the class of the Object.
- */
- static native Class getClass(Object obj);
-
- /**
- * The VM is expected to make a field-for-field shallow copy of the
- * argument. Thus, the copy has the same runtime type as the argument.
- * Note, however, that the cloned object must still be finalizable, even
- * if the original has already had finalize() invoked on it.
- *
- * @param c the Cloneable to clone
- * @return the clone
- */
- static native Object clone(Cloneable c);
-
- /**
- * Wakes up one of the threads that is waiting on this Object's monitor.
- * Only the owner of a lock on the Object may call this method. The Thread
- * to wake up is chosen arbitrarily.
- *
- * @param o the object doing the notify
- * @throw IllegalMonitorStateException if this Thread does not own the
- * lock on the Object
- */
- static native void notify(Object o) throws IllegalMonitorStateException;
-
- /**
- * Wakes up all of the threads waiting on this Object's monitor. Only
- * the owner of the lock on this Object may call this method.
- *
- * @param o the object doing the notifyAll
- * @throws IllegalMonitorStateException if this Thread does not own the
- * lock on the Object
- */
- static native void notifyAll(Object o) throws IllegalMonitorStateException;
-
- /**
- * Waits a specified amount of time for notify() or notifyAll() to be
- * called on this Object. The VM does not have to pay attention to the
- * ns argument, if it does not have that much granularity.
- *
- * @param o the object to suspend on
- * @param ms milliseconds to wait (1,000 milliseconds = 1 second)
- * @param ns nanoseconds to wait beyond ms (1,000,000 nanoseconds
- * == 1 millisecond)
- * @throws IllegalMonitorStateException if this Thread does not own the
- * lock on the Object
- * @throws InterruptedException if some other Thread interrupts this Thread
- */
- static native void wait(Object o, long ms, int ns)
- throws IllegalMonitorStateException, InterruptedException;
-}