summaryrefslogtreecommitdiff
path: root/libjava/java/lang/ref/PhantomReference.java
diff options
context:
space:
mode:
Diffstat (limited to 'libjava/java/lang/ref/PhantomReference.java')
-rw-r--r--libjava/java/lang/ref/PhantomReference.java73
1 files changed, 0 insertions, 73 deletions
diff --git a/libjava/java/lang/ref/PhantomReference.java b/libjava/java/lang/ref/PhantomReference.java
deleted file mode 100644
index 4d929c29c58..00000000000
--- a/libjava/java/lang/ref/PhantomReference.java
+++ /dev/null
@@ -1,73 +0,0 @@
-/* java.lang.ref.PhantomReference
- Copyright (C) 1999 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;
-
-/**
- * A phantom reference is useful, to get notified, when an object got
- * finalized. You can't access that object though, since it is
- * finalized. This is the reason, why <code>get()</code> always
- * returns null.
- *
- * @author Jochen Hoenicke
- */
-public class PhantomReference
- extends Reference
-{
- /**
- * Creates a new phantom reference.
- * @param referent the object that should be watched.
- * @param q the queue that should be notified, if the referent was
- * finalized. This mustn't be <code>null</code>.
- * @exception NullPointerException if q is null.
- */
- public PhantomReference(Object referent, ReferenceQueue q)
- {
- super(referent, q);
- }
-
- /**
- * Returns the object, this reference refers to.
- * @return <code>null</code>, since the refered object may be
- * finalized and thus not accessible.
- */
- public Object get()
- {
- return null;
- }
-}