--- /dev/null	2015-11-19 20:55:17.685707015 +0300
+++ new/src/java.desktop/share/classes/java/awt/desktop/UserSessionListener.java	2015-11-24 19:06:54.924601868 +0300
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2015, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.awt.desktop;
+
+import java.awt.AppEvent.UserSessionEvent;
+
+/**
+ * Implementors receive notification when Fast User Switching changes the user session.
+ *
+ * This notification is useful for discontinuing a costly animation, or indicating that the user is no longer present on a network service.
+ *
+ */
+public interface UserSessionListener extends SystemEventListener {
+    /**
+     * Called when the user session has been switched away.
+     * @param e the user session switch event
+     */
+    public void userSessionDeactivated(final UserSessionEvent e);
+
+    /**
+     * Called when the user session has been switched to.
+     * @param e the user session switch event
+     */
+    public void userSessionActivated(final UserSessionEvent e);
+}