--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/lang/invoke/InvokeWithArgumentsTest.java Wed Sep 27 10:24:40 2017 -0700
@@ -0,0 +1,135 @@
+/*
+ * 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
+ * @summary basic tests for MethodHandle.invokeWithArguments
+ * @run testng test.java.lang.invoke.InvokeWithArgumentsTest
+ */
+
+package test.java.lang.invoke;
+
+import org.testng.Assert;
+import org.testng.annotations.Test;
+
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.WrongMethodTypeException;
+
+import static java.lang.invoke.MethodType.methodType;
+
+public class InvokeWithArgumentsTest {
+ static final MethodHandles.Lookup L = MethodHandles.lookup();
+
+ static Object[] arity(Object o1, Object o2, Object... a) {
+ return a;
+ }
+
+ @Test
+ public void testArity() throws Throwable {
+ MethodHandle mh = L.findStatic(L.lookupClass(), "arity",
+ methodType(Object[].class, Object.class, Object.class, Object[].class));
+
+ try {
+ mh.invokeWithArguments("");
+ Assert.fail("WrongMethodTypeException expected");
+ } catch (WrongMethodTypeException e) {}
+ }
+
+ static Object[] passThrough(String... a) {
+ return a;
+ }
+
+ static Object[] pack(Object o, Object... a) {
+ return a;
+ }
+
+ @Test
+ public void testArrayNoPassThrough() throws Throwable {
+ String[] actual = {"A", "B"};
+
+ MethodHandle mh = L.findStatic(L.lookupClass(), "passThrough",
+ methodType(Object[].class, String[].class));
+
+ // Note: the actual array is not preserved, the elements will be
+ // unpacked and then packed into a new array before invoking the method
+ String[] expected = (String[]) mh.invokeWithArguments(actual);
+
+ Assert.assertTrue(actual != expected, "Array should not pass through");
+ Assert.assertEquals(actual, expected, "Array contents should be equal");
+ }
+
+ @Test
+ public void testArrayPack() throws Throwable {
+ String[] actual = new String[]{"A", "B"};
+
+ MethodHandle mh = L.findStatic(L.lookupClass(), "pack",
+ methodType(Object[].class, Object.class, Object[].class));
+
+ // Note: since String[] can be cast to Object, the actual String[] array
+ // will cast to Object become the single element of a new Object[] array
+ Object[] expected = (Object[]) mh.invokeWithArguments("", actual);
+
+ Assert.assertEquals(1, expected.length, "Array should contain just one element");
+ Assert.assertTrue(actual == expected[0], "Array should pass through");
+ }
+
+ static void intArray(int... a) {
+ }
+
+ @Test
+ public void testPrimitiveArrayWithNull() throws Throwable {
+ MethodHandle mh = L.findStatic(L.lookupClass(), "intArray",
+ methodType(void.class, int[].class));
+ try {
+ mh.invokeWithArguments(null, null);
+ Assert.fail("NullPointerException expected");
+ } catch (NullPointerException e) {}
+ }
+
+ @Test
+ public void testPrimitiveArrayWithRef() throws Throwable {
+ MethodHandle mh = L.findStatic(L.lookupClass(), "intArray",
+ methodType(void.class, int[].class));
+ try {
+ mh.invokeWithArguments("A", "B");
+ Assert.fail("ClassCastException expected");
+ } catch (ClassCastException e) {}
+ }
+
+
+ static void numberArray(Number... a) {
+ }
+
+ @Test
+ public void testRefArrayWithCast() throws Throwable {
+ MethodHandle mh = L.findStatic(L.lookupClass(), "numberArray",
+ methodType(void.class, Number[].class));
+ // All numbers, should not throw
+ mh.invokeWithArguments(1, 1.0, 1.0F, 1L);
+
+ try {
+ mh.invokeWithArguments("A");
+ Assert.fail("ClassCastException expected");
+ } catch (ClassCastException e) {}
+ }
+}