| /* |
| * Copyright 2011 SAP AG. 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 SpreadNullArg |
| * @bug 7141637 |
| * @summary verifies that the MethodHandle spread adapter can gracefully handle null arguments. |
| * @run main SpreadNullArg |
| * @author volker.simonis@gmail.com |
| */ |
| |
| import java.lang.invoke.MethodHandle; |
| import java.lang.invoke.MethodHandles; |
| import java.lang.invoke.MethodType; |
| |
| public class SpreadNullArg { |
| |
| public static void main(String args[]) { |
| |
| MethodType mt_ref_arg = MethodType.methodType(int.class, Integer.class); |
| MethodHandle mh_spreadInvoker = MethodHandles.spreadInvoker(mt_ref_arg, 0); |
| MethodHandle mh_spread_target; |
| int result = 42; |
| |
| try { |
| mh_spread_target = |
| MethodHandles.lookup().findStatic(SpreadNullArg.class, "target_spread_arg", mt_ref_arg); |
| result = (int) mh_spreadInvoker.invokeExact(mh_spread_target, (Object[]) null); |
| throw new Error("Expected IllegalArgumentException was not thrown"); |
| } catch (IllegalArgumentException e) { |
| System.out.println("Expected exception : " + e); |
| } catch (Throwable e) { |
| throw new Error(e); |
| } |
| |
| if (result != 42) { |
| throw new Error("result [" + result |
| + "] != 42 : Expected IllegalArgumentException was not thrown?"); |
| } |
| } |
| |
| public static int target_spread_arg(Integer i1) { |
| return i1.intValue(); |
| } |
| |
| } |