--- a/src/java.desktop/share/classes/sun/awt/AWTSecurityManager.java	Fri Feb 22 17:03:09 2019 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,65 +0,0 @@
-/*
- * Copyright (c) 1999, 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 sun.awt;
-
-/**
-  * The AWTSecurityManager class provides the ability to secondarily
-  * index AppContext objects through SecurityManager extensions.
-  * As noted in AppContext.java, AppContexts are primarily indexed by
-  * ThreadGroup.  In the case where the ThreadGroup doesn't provide
-  * enough information to determine AppContext (e.g. system threads),
-  * if a SecurityManager is installed which derives from
-  * AWTSecurityManager, the AWTSecurityManager's getAppContext()
-  * method is called to determine the AppContext.
-  *
-  * A typical example of the use of this class is where an applet
-  * is called by a system thread, yet the system AppContext is
-  * inappropriate, because applet code is currently executing.
-  * In this case, the getAppContext() method can walk the call stack
-  * to determine the applet code being executed and return the applet's
-  * AppContext object.
-  *
-  * @author  Fred Ecks
-  */
-public class AWTSecurityManager extends SecurityManager {
-
-    /**
-      * Get the AppContext corresponding to the current context.
-      * The default implementation returns null, but this method
-      * may be overridden by various SecurityManagers
-      * (e.g. AppletSecurity) to index AppContext objects by the
-      * calling context.
-      *
-      * @return  the AppContext corresponding to the current context.
-      * @see     sun.awt.AppContext
-      * @see     java.lang.SecurityManager
-      * @since   1.2.1
-      */
-    public AppContext getAppContext() {
-        return null; // Default implementation returns null
-    }
-
-} /* class AWTSecurityManager */