test/hotspot/jtreg/runtime/linkResolver/TestDeletedMethod.java
changeset 52066 49a21be61dcd
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/runtime/linkResolver/TestDeletedMethod.java	Tue Oct 09 20:19:22 2018 -0400
@@ -0,0 +1,65 @@
+/*
+ * 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.
+ */
+
+/*
+ * @test
+ * @bug 8211065
+ * @summary Test that deleting a subclass method implementation results in
+ * execution of a superclass implementation - if it is accessible.
+ * @compile TestDeletedMethod.java
+ * @compile TestDeletedMethod_Sub.jcod TestDeletedMethod_Super.jcod
+ * @run main/othervm -XX:+RelaxAccessControlCheck TestDeletedMethod
+ */
+
+// The access control relaxation was originally done to ensure an assertion
+// in the nestmate logic would not trigger unintentionally because it
+// assumed only nestmates could be involved. The assertion no longer exists
+// but we keep the test as a non-nestmate version of the situation.
+
+/* package */ class TestDeletedMethod_Super {
+    public static final int ID = 2;
+    private static int m() {
+        System.out.println("Super.m");
+        return ID;
+    }
+}
+
+/* package */ class TestDeletedMethod_Sub extends TestDeletedMethod_Super {
+    public static final int ID = 1;
+    // At runtime this implementation is not present
+    private static int m() {
+        System.out.println("Sub.m");
+        return ID;
+    }
+    public static int test() {
+        return TestDeletedMethod_Sub.m();
+    }
+}
+
+public class TestDeletedMethod {
+    public static void main(String[] args) {
+        int x = TestDeletedMethod_Sub.test();
+        if (x != TestDeletedMethod_Super.ID)
+            throw new RuntimeException("Wrong method invoked: " + x);
+    }
+}