--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/runtime/LoaderConstraints/vtableLdrConstraint/Test.java Thu Sep 28 13:01:24 2017 -0400
@@ -0,0 +1,63 @@
+/*
+ * 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 8186092
+ * @compile ../common/Foo.java
+ * ../common/J.java
+ * I.java
+ * ../common/C.jasm
+ * Task.java
+ * ../common/PreemptingClassLoader.java
+ * @run main/othervm Test
+ */
+
+public class Test {
+
+ // Test that the error message is correct when a loader constraint error is
+ // detected during vtable creation.
+ //
+ // In this test, during vtable creation for class Task, method "Task.m()LFoo;"
+ // overrides "J.m()LFoo;". But, Task's class Foo and super type J's class Foo
+ // are different. So, a LinkageError exception should be thrown because the
+ // loader constraint check will fail.
+ public static void main(String args[]) throws Exception {
+ Class<?> c = Foo.class; // forces standard class loader to load Foo
+ ClassLoader l = new PreemptingClassLoader("Task", "Foo", "I");
+ l.loadClass("Foo");
+ try {
+ l.loadClass("Task").newInstance();
+ throw new RuntimeException("Expected LinkageError exception not thrown");
+ } catch (LinkageError e) {
+ if (!e.getMessage().contains(
+ "loader constraint violation for class Task: when selecting overriding method") ||
+ !e.getMessage().contains(
+ "for its super type J have different Class objects for the type Foo")) {
+ throw new RuntimeException("Wrong LinkageError exception thrown: " + e.getMessage());
+ }
+ }
+ }
+
+}
+