--- /dev/null 2016-01-23 13:54:58.921007622 +0300 +++ new/test/java/lang/invoke/VarArgsTest.java 2016-03-22 13:02:12.619562463 +0300 @@ -0,0 +1,80 @@ +/* + * Copyright (c) 2016, 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. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * 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 unit tests for java.lang.invoke.MethodHandles + * @run testng/othervm -ea -esa test.java.lang.invoke.VarArgsTest + */ +package test.java.lang.invoke; + +import java.lang.invoke.MethodHandle; +import java.lang.invoke.MethodHandles; +import java.lang.invoke.MethodType; +import java.util.Arrays; +import java.util.List; +import static java.lang.invoke.MethodHandles.*; +import static java.lang.invoke.MethodType.*; +import static org.testng.AssertJUnit.*; +import org.testng.annotations.*; + +public class VarArgsTest { + + @Test + public void testWithVarargs() throws Throwable { + MethodHandle deepToString = publicLookup() + .findStatic(Arrays.class, "deepToString", methodType(String.class, Object[].class)); + assertFalse(deepToString.isVarargsCollector()); + MethodHandle ts = deepToString.withVarargs(false); + assertFalse(ts.isVarargsCollector()); + MethodHandle ts1 = deepToString.withVarargs(true); + assertTrue(ts1.isVarargsCollector()); + assertEquals("[won]", (String) ts1.invokeExact(new Object[]{"won"})); + assertEquals("[won]", (String) ts1.invoke(new Object[]{"won"})); + assertEquals("[won]", (String) ts1.invoke("won")); + assertEquals("[won, won]", (String) ts1.invoke("won", "won")); + assertEquals("[won, won]", (String) ts1.invoke(new Object[]{"won", "won"})); + assertEquals("[[won]]", (String) ts1.invoke((Object) new Object[]{"won"})); + } + + @Test + public void testWithVarargs2() throws Throwable { + MethodHandle asList = publicLookup() + .findStatic(Arrays.class, "asList", methodType(List.class, Object[].class)); + MethodHandle asListWithVarargs = asList.withVarargs(asList.isVarargsCollector()); + assert(asListWithVarargs.isVarargsCollector()); + assertEquals("[]", asListWithVarargs.invoke().toString()); + assertEquals("[1]", asListWithVarargs.invoke(1).toString()); + assertEquals("[two, too]", asListWithVarargs.invoke("two", "too").toString()); + } + + @Test + @ExpectedExceptions(IllegalArgumentException.class) + public void testWithVarargsIAE() throws Throwable { + MethodHandle lenMH = publicLookup() + .findVirtual(String.class, "length", methodType(int.class)); + MethodHandle lenMHWithVarargs = lenMH.withVarargs(true); + } + +}