--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/lang/ClassLoader/CustomSystemLoader/InitSystemLoaderTest.java	Tue May 09 10:34:13 2017 -0700
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2017, 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.
+ */
+
+/*
+ * @test
+ * @bug 8179950
+ * @build CustomLoader InitSystemLoaderTest
+ * @run main/othervm -Djava.system.class.loader=CustomLoader InitSystemLoaderTest
+ * @summary Test custom system loader initialization and verify their ancestors
+ */
+
+public class InitSystemLoaderTest {
+    public static void main(String... args) {
+        // check that system class loader is the custom loader
+        ClassLoader loader = ClassLoader.getSystemClassLoader();
+        if (loader != CustomLoader.INSTANCE) {
+            throw new RuntimeException("Expected custom loader: "
+                + CustomLoader.INSTANCE + " got: " + loader);
+        }
+
+        // parent of the custom loader should be builtin system class loader
+        ClassLoader builtinSystemLoader = loader.getParent();
+        ClassLoader grandparent = builtinSystemLoader.getParent();
+        if (grandparent != ClassLoader.getPlatformClassLoader()) {
+            throw new RuntimeException("Expected class loader ancestor: "
+                + ClassLoader.getPlatformClassLoader() + " got: " + grandparent);
+        }
+    }
+}