8187443: Forest Consolidation: Move files to unified layout

Reviewed-by: darcy, ihse

src/java.base/share/classes/java/security/Guard.java

@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 1997, 2013, 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.security;
+
+/**
+ * <p> This interface represents a guard, which is an object that is used
+ * to protect access to another object.
+ *
+ * <p>This interface contains a single method, {@code checkGuard},
+ * with a single {@code object} argument. {@code checkGuard} is
+ * invoked (by the GuardedObject {@code getObject} method)
+ * to determine whether or not to allow access to the object.
+ *
+ * @see GuardedObject
+ *
+ * @author Roland Schemers
+ * @author Li Gong
+ * @since 1.2
+ */
+
+public interface Guard {
+
+    /**
+     * Determines whether or not to allow access to the guarded object
+     * {@code object}. Returns silently if access is allowed.
+     * Otherwise, throws a SecurityException.
+     *
+     * @param object the object being protected by the guard.
+     *
+     * @exception SecurityException if access is denied.
+     *
+     */
+    void checkGuard(Object object) throws SecurityException;
+}