--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/javax/imageio/metadata/IIOMetadataFormat/MetadataFormatThreadTest.java	Mon Sep 17 13:44:07 2012 +0400
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2012, 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.
+ *
+ * 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.
+ */
+
+/*
+ * @bug 4929170
+ * @summary Tests that user-supplied IIOMetadata implementations
+ *           is able to load correspnding IIOMetadataFormat implementations.
+ */
+
+import java.io.File;
+import java.net.URL;
+import java.net.URLClassLoader;
+
+
+public class MetadataFormatThreadTest implements Runnable {
+
+    String test_class;
+
+    public static void main(String[] args) throws Exception {
+        String codebase = args[0];
+        String code = args[1];
+
+        Thread t = createTest(codebase, code);
+        try {
+            t.start();
+        } catch (IllegalStateException e) {
+            System.out.println("Test failed.");
+            e.printStackTrace();
+
+            System.exit(1);
+        }
+    }
+
+    public MetadataFormatThreadTest(String c) {
+        test_class = c;
+    }
+
+    public void run() {
+        try {
+            ClassLoader loader = (ClassLoader)
+                java.security.AccessController.doPrivileged(
+                    new java.security.PrivilegedAction() {
+                            public Object run() {
+                                return Thread.currentThread().getContextClassLoader();
+                            }
+                        });
+
+            Class ct = loader.loadClass(test_class);
+
+            MetadataTest t = (MetadataTest)ct.newInstance();
+
+            t.doTest();
+        } catch (Exception e) {
+            System.out.println("Test failed.");
+            e.printStackTrace();
+            System.exit(1);
+        }
+    }
+
+    protected static Thread createTest(String codebase,
+                                             String code) throws Exception {
+
+        URL[] urls = { new File(codebase).toURL()};
+        final ClassLoader loader = new URLClassLoader(urls);
+
+        final Thread t = new Thread(new MetadataFormatThreadTest(code));
+        java.security.AccessController.doPrivileged(
+            new java.security.PrivilegedAction() {
+                    public Object run() {
+                        t.setContextClassLoader(loader);
+                        return null;
+                    }
+                });
+
+        return t;
+    }
+
+}