--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/lang/invoke/VarHandles/VarHandleTestReflection.java Thu Mar 24 11:21:21 2016 +0100
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2014, 2015, 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
+ * @run testng VarHandleTestReflection
+ */
+
+import org.testng.annotations.DataProvider;
+import org.testng.annotations.Test;
+
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandleInfo;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.VarHandle;
+import java.lang.reflect.Method;
+import java.util.stream.Stream;
+
+public class VarHandleTestReflection extends VarHandleBaseTest {
+ String string;
+
+ @DataProvider
+ public static Object[][] accessModesProvider() {
+ return Stream.of(VarHandle.AccessMode.values()).
+ map(am -> new Object[]{am}).
+ toArray(Object[][]::new);
+ }
+
+ static VarHandle handle() throws Exception {
+ return MethodHandles.lookup().
+ findVarHandle(VarHandleTestReflection.class, "string", String.class);
+ }
+
+ @Test(dataProvider = "accessModesProvider", expectedExceptions = IllegalArgumentException.class)
+ public void methodInvocation(VarHandle.AccessMode accessMode) throws Exception {
+ VarHandle v = handle();
+
+ // Try a reflective invoke using a Method
+
+ Method vhm = VarHandle.class.getMethod(accessMode.name(), Object[].class);
+ vhm.invoke(v, new Object[]{});
+ }
+
+ @Test(dataProvider = "accessModesProvider", expectedExceptions = UnsupportedOperationException.class)
+ public void methodHandleInvoke(VarHandle.AccessMode accessMode) throws Throwable {
+ VarHandle v = handle();
+
+ // Try a reflective invoke using a MethodHandle
+
+ MethodHandle mh = MethodHandles.lookup().unreflect(
+ VarHandle.class.getMethod(accessMode.name(), Object[].class));
+ // Use invoke to avoid WrongMethodTypeException for
+ // non-signature-polymorphic return types
+ Object o = (Object) mh.invoke(v, new Object[]{});
+ }
+
+ @Test(dataProvider = "accessModesProvider", expectedExceptions = IllegalArgumentException.class)
+ public void methodInvocationFromMethodInfo(VarHandle.AccessMode accessMode) throws Exception {
+ VarHandle v = handle();
+
+ // Try a reflective invoke using a Method obtained from cracking
+ // a MethodHandle
+
+ MethodHandle mh = MethodHandles.lookup().unreflect(
+ VarHandle.class.getMethod(accessMode.name(), Object[].class));
+ MethodHandleInfo info = MethodHandles.lookup().revealDirect(mh);
+ Method im = info.reflectAs(Method.class, MethodHandles.lookup());
+ im.invoke(v, new Object[]{});
+ }
+
+ @Test(dataProvider = "accessModesProvider", expectedExceptions = IllegalArgumentException.class)
+ public void reflectAsFromVarHandleInvoker(VarHandle.AccessMode accessMode) throws Exception {
+ VarHandle v = handle();
+
+ MethodHandle mh = MethodHandles.varHandleInvoker(
+ accessMode, v.accessModeType(accessMode));
+
+ MethodHandleInfo info = MethodHandles.lookup().revealDirect(mh);
+
+ info.reflectAs(Method.class, MethodHandles.lookup());
+ }
+
+ @Test(dataProvider = "accessModesProvider", expectedExceptions = IllegalArgumentException.class)
+ public void reflectAsFromFindVirtual(VarHandle.AccessMode accessMode) throws Exception {
+ VarHandle v = handle();
+
+ MethodHandle mh = MethodHandles.publicLookup().findVirtual(
+ VarHandle.class, accessMode.name(), v.accessModeType(accessMode));
+
+ MethodHandleInfo info = MethodHandles.lookup().revealDirect(mh);
+
+ info.reflectAs(Method.class, MethodHandles.lookup());
+ }
+}