--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/security/Policy/GetInstance/GetInstancePolicySpi.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2005-2007 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.
+ */
+
+import java.security.*;
+import java.net.URL;
+import java.net.MalformedURLException;
+import sun.security.provider.*;
+
+public class GetInstancePolicySpi extends PolicySpi {
+
+    private Policy p;
+
+    public GetInstancePolicySpi(final Policy.Parameters params) {
+        p = AccessController.doPrivileged
+            (new PrivilegedAction<Policy>() {
+            public Policy run() {
+                if (params instanceof URIParameter) {
+                    URIParameter uriParam = (URIParameter)params;
+                    try {
+                        URL url = uriParam.getURI().toURL();
+                        return new PolicyFile(url);
+                    } catch (MalformedURLException mue) {
+                        throw new IllegalArgumentException(mue);
+                    }
+                }
+                return new PolicyFile();
+            }
+        });
+    }
+
+    public boolean engineImplies(ProtectionDomain domain, Permission perm) {
+
+        /**
+         * Note there is no need to capture own protection domain and
+         * return immediately if we are performing a check against ourself
+         * (a task normally needed for custom policy implementations).
+         *
+         * We simply call PolicyFile.implies - any doPrivileged
+         * that PolicyFile performs will truncate us from the current ACC.
+         */
+
+        return p.implies(domain, perm);
+    }
+}