Makefile.def: Remove libjava.

2016-09-30  Andrew Haley  <aph@redhat.com>

	* Makefile.def: Remove libjava.
	* Makefile.tpl: Likewise.
	* Makefile.in: Regenerate.
	* configure.ac: Likewise.
	* configure: Likewise.
	* gcc/java: Remove.
	* libjava: Likewise.

From-SVN: r240662

1 files changed, 0 insertions, 176 deletions

diff --git a/libjava/classpath/java/lang/ref/Reference.java b/libjava/classpath/java/lang/ref/Reference.java
deleted file mode 100644
index 37cda6f..0000000
--- a/libjava/classpath/java/lang/ref/Reference.java
+++ /dev/null
@@ -1,176 +0,0 @@
-/* java.lang.ref.Reference
-   Copyright (C) 1999, 2002, 2003, 2004, 2006 Free Software Foundation, Inc.
-
-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.ref;
-
-/**
- * This is the base class of all references.  A reference allows
- * refering to an object without preventing the garbage collector to
- * collect it.  The only way to get the referred object is via the
- * <code>get()</code>-method.  This method will return
- * <code>null</code> if the object was collected. <br>
- *
- * A reference may be registered with a queue.  When a referred
- * element gets collected the reference will be put on the queue, so
- * that you will be notified. <br>
- *
- * There are currently three types of references:  soft reference,
- * weak reference and phantom reference. <br>
- *
- * Soft references will be cleared if the garbage collector is told
- * to free some memory and there are no unreferenced or weakly referenced
- * objects.  It is useful for caches. <br>
- *
- * Weak references will be cleared as soon as the garbage collector
- * determines that the refered object is only weakly reachable.  They
- * are useful as keys in hashtables (see <code>WeakHashtable</code>) as
- * you get notified when nobody has the key anymore.
- *
- * Phantom references don't prevent finalization.  If an object is only
- * phantom reachable, it will be finalized, and the reference will be
- * enqueued, but not cleared.  Since you mustn't access an finalized
- * object, the <code>get</code> method of a phantom reference will never
- * work.  It is useful to keep track, when an object is finalized.
- *
- * @author Jochen Hoenicke
- * @see java.util.WeakHashMap
- */
-public abstract class Reference<T>
-{
-  /**
-   * The underlying object.  This field is handled in a special way by
-   * the garbage collector.
-   */
-  T referent;
-
-  /**
-   * The queue this reference is registered on. This is null, if this
-   * wasn't registered to any queue or reference was already enqueued.
-   */
-  volatile ReferenceQueue<? super T> queue;
-
-  /**
-   * Link to the next entry on the queue.  If this is null, this
-   * reference is not enqueued.  Otherwise it points to the next
-   * reference.  The last reference on a queue will point to itself
-   * (not to null, that value is used to mark a not enqueued
-   * reference).
-   */
-  volatile Reference nextOnQueue;
-
-  /**
-   * This lock should be taken by the garbage collector, before
-   * determining reachability.  It will prevent the get()-method to
-   * return the reference so that reachability doesn't change.
-   */
-  static Object lock = new Object();
-
-  /**
-   * Creates a new reference that is not registered to any queue.
-   * Since it is package private, it is not possible to overload this
-   * class in a different package.
-   * @param ref the object we refer to.
-   */
-  Reference(T ref)
-  {
-    referent = ref;
-  }
-
-  /**
-   * Creates a reference that is registered to a queue.  Since this is
-   * package private, it is not possible to overload this class in a
-   * different package.
-   * @param ref the object we refer to.
-   * @param q the reference queue to register on.
-   * @exception NullPointerException if q is null.
-   */
-  Reference(T ref, ReferenceQueue<? super T> q)
-  {
-    if (q == null)
-      throw new NullPointerException();
-    referent = ref;
-    queue = q;
-  }
-
-  /**
-   * Returns the object, this reference refers to.
-   * @return the object, this reference refers to, or null if the
-   * reference was cleared.
-   */
-  public T get()
-  {
-    synchronized (lock)
-      {
-        return referent;
-      }
-  }
-
-  /**
-   * Clears the reference, so that it doesn't refer to its object
-   * anymore.  For soft and weak references this is called by the
-   * garbage collector.  For phantom references you should call
-   * this when enqueuing the reference.
-   */
-  public void clear()
-  {
-    referent = null;
-  }
-
-  /**
-   * Tells if the object is enqueued on a reference queue.
-   * @return true if it is enqueued, false otherwise.
-   */
-  public boolean isEnqueued()
-  {
-    return nextOnQueue != null;
-  }
-
-  /**
-   * Enqueue an object on a reference queue.  This is normally executed
-   * by the garbage collector.
-   */
-  public boolean enqueue()
-  {
-    ReferenceQueue q = queue;
-    if (q != null)
-      {
-        return q.enqueue(this);
-      }
-    return false;
-  }
-}