--- /dev/null	2018-04-28 00:24:55.164000301 -0400
+++ new/test/hotspot/jtreg/runtime/modules/ClassLoaderNoUnnamedModule.java	2018-05-24 13:18:28.525779805 -0400
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2018, 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.
+ */
+
+import jdk.internal.misc.Unsafe;
+
+public class ClassLoaderNoUnnamedModule {
+    static final Unsafe UNSAFE = Unsafe.getUnsafe();
+
+    class TestClass extends ClassLoader {
+        public boolean calledConstructor = false;
+
+        public TestClass() {
+            calledConstructor = true;
+        }
+    }
+
+    static void testConstructorCall() throws Exception {
+        // Use Unsafe allocateInstance to construct an instance of TestClass
+        // which does not invoke its super's, java.lang.ClassLoader, constructor.
+        // An unnamed module for this ClassLoader is not created.
+        TestClass tc = (TestClass)UNSAFE.allocateInstance(TestClass.class);
+        System.out.println("tc = " + tc + "tc's ctor called = " + tc.calledConstructor);
+        Module unnamed_module = tc.getUnnamedModule();
+        if (unnamed_module == null) {
+            System.out.println("The unnamed module for this class loader is null");
+        }
+
+        tc.loadClass(String.class.getName());
+        Class.forName(String.class.getName(), false, tc);
+    }
+
+    public static void main(String args[]) throws Exception {
+        testConstructorCall();
+    }
+}