--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/security/BasicPermission/EqualsImplies.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,59 @@
+/*
+ * Copyright 1998 Sun Microsystems, Inc.  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.
+ *
+ * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 4157921
+ * @summary Test subclasses of BasicPermission to make sure different
+ * subclasses don't equal or imply each other.
+ */
+
+import java.security.Permission;
+import java.security.BasicPermission;
+
+class A extends BasicPermission {
+    public A(String name) { super(name); }
+}
+
+class B extends BasicPermission {
+    public B(String name) { super(name); }
+}
+
+public class EqualsImplies {
+
+    public static void main(String[]args) throws Exception {
+
+      Permission p1 = new A("foo");
+      Permission p2 = new B("foo");
+
+      if (p1.implies(p2) || p2.implies(p1) || p1.equals(p2)) {
+          throw new Exception("Test failed");
+      }
+
+      // make sure permissions imply and equal themselves
+      if (! (p1.implies(p1) && p1.equals(p1))) {
+          throw new Exception("Test failed");
+      }
+
+    }
+}