--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/runtime/Nestmates/privateConstructors/TestMethodHandles.java Sat Jun 23 01:32:41 2018 -0400
@@ -0,0 +1,159 @@
+/*
+ * 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 8046171
+ * @summary Test access to private constructors between nestmates and nest-host
+ * using different flavours of named nested types using MethodHandles
+ * @run main TestMethodHandles
+ */
+
+import java.lang.invoke.*;
+import static java.lang.invoke.MethodHandles.*;
+import static java.lang.invoke.MethodType.*;
+
+public class TestMethodHandles {
+
+ static final MethodType NOARG_T = MethodType.methodType(void.class);
+ static final MethodType INNER_T = MethodType.methodType(void.class, TestMethodHandles.class);
+
+ // All constructors are private to ensure nestmate access checks apply
+
+ // All doConstruct methods are public so they don't involve invoke_special
+
+ private TestMethodHandles() {}
+
+ // The various nestmates
+
+ // Note: No constructor on interfaces so no StaticIface variants
+
+ static interface StaticIface {
+
+ // Methods that will access private constructors of nestmates.
+ // The arg is a dummy for overloading purposes
+
+ default void doConstruct(TestMethodHandles o) throws Throwable {
+ MethodHandle mh =
+ lookup().findConstructor(TestMethodHandles.class, NOARG_T);
+ TestMethodHandles obj = (TestMethodHandles) mh.invoke();
+ obj = (TestMethodHandles) mh.invokeExact();
+ }
+ default void doConstruct(TestMethodHandles outer, InnerNested o) throws Throwable {
+ MethodHandle mh =
+ lookup().findConstructor(InnerNested.class, INNER_T);
+ InnerNested obj = (InnerNested) mh.invoke(outer);
+ obj = (InnerNested) mh.invokeExact(outer);
+ }
+ default void doConstruct(StaticNested o) throws Throwable {
+ MethodHandle mh =
+ lookup().findConstructor(StaticNested.class, NOARG_T);
+ StaticNested obj = (StaticNested) mh.invoke();
+ obj = (StaticNested) mh.invokeExact();
+ }
+ }
+
+ static class StaticNested {
+
+ private StaticNested() {}
+
+ // Methods that will access private constructors of nestmates.
+ // The arg is a dummy for overloading purposes
+
+ public void doConstruct(TestMethodHandles o) throws Throwable {
+ MethodHandle mh =
+ lookup().findConstructor(TestMethodHandles.class, NOARG_T);
+ TestMethodHandles obj = (TestMethodHandles) mh.invoke();
+ obj = (TestMethodHandles) mh.invokeExact();
+ }
+ public void doConstruct(TestMethodHandles outer, InnerNested o) throws Throwable {
+ MethodHandle mh =
+ lookup().findConstructor(InnerNested.class, INNER_T);
+ InnerNested obj = (InnerNested) mh.invoke(outer);
+ obj = (InnerNested) mh.invokeExact(outer);
+ }
+ public void doConstruct(StaticNested o) throws Throwable {
+ MethodHandle mh =
+ lookup().findConstructor(StaticNested.class, NOARG_T);
+ StaticNested obj = (StaticNested) mh.invoke();
+ obj = (StaticNested) mh.invokeExact();
+ }
+ }
+
+ class InnerNested {
+
+ private InnerNested() {}
+
+ // Methods that will access private constructors of nestmates.
+ // The arg is a dummy for overloading purposes
+
+ public void doConstruct(TestMethodHandles o) throws Throwable {
+ MethodHandle mh =
+ lookup().findConstructor(TestMethodHandles.class, NOARG_T);
+ TestMethodHandles obj = (TestMethodHandles) mh.invoke();
+ obj = (TestMethodHandles) mh.invokeExact();
+ }
+ public void doConstruct(TestMethodHandles outer, InnerNested o) throws Throwable {
+ MethodHandle mh =
+ lookup().findConstructor(InnerNested.class, INNER_T);
+ InnerNested obj = (InnerNested) mh.invoke(outer);
+ obj = (InnerNested) mh.invokeExact(outer);
+ }
+ public void doConstruct(StaticNested o) throws Throwable {
+ MethodHandle mh =
+ lookup().findConstructor(StaticNested.class, NOARG_T);
+ StaticNested obj = (StaticNested) mh.invoke();
+ obj = (StaticNested) mh.invokeExact();
+ }
+ }
+
+ public static void main(String[] args) throws Throwable {
+ // These initial constructions test nest-host access
+ MethodHandle mh =
+ lookup().findConstructor(TestMethodHandles.class, NOARG_T);
+ TestMethodHandles o = (TestMethodHandles) mh.invoke();
+ o = (TestMethodHandles) mh.invokeExact();
+
+ mh = lookup().findConstructor(StaticNested.class, NOARG_T);
+ StaticNested s = (StaticNested) mh.invoke();
+ s = (StaticNested) mh.invokeExact();
+
+ mh = lookup().findConstructor(InnerNested.class, INNER_T);
+ InnerNested i = (InnerNested) mh.invoke(o);
+ i = (InnerNested) mh.invokeExact(o);
+
+ StaticIface intf = new StaticIface() {};
+
+ s.doConstruct(o);
+ s.doConstruct(o, i);
+ s.doConstruct(s);
+
+ i.doConstruct(o);
+ i.doConstruct(o, i);
+ i.doConstruct(s);
+
+ intf.doConstruct(o);
+ intf.doConstruct(o, i);
+ intf.doConstruct(s);
+ }
+}