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comparison test/compiler/7141637/SpreadNullArg.java @ 4874:392a3f07d567

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7141637: JSR 292: MH spread invoker crashes with NULL argument on x86_32 Reviewed-by: twisti Contributed-by: Volker Simonis <volker.simonis@gmail.com>
author twisti
date Thu, 02 Feb 2012 09:14:38 -0800
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children 62084ffe573b
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4873:0382d2b469b2 4874:392a3f07d567
1 /*
2 * Copyright 2011 SAP AG. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test SpreadNullArg
26 * @bug 7141637
27 * @summary verifies that the MethodHandle spread adapter can gracefully handle null arguments.
28 * @run main SpreadNullArg
29 * @author volker.simonis@gmail.com
30 */
31
32 import java.lang.invoke.MethodHandle;
33 import java.lang.invoke.MethodHandles;
34 import java.lang.invoke.MethodType;
35
36 public class SpreadNullArg {
37
38 public static void main(String args[]) {
39
40 MethodType mt_ref_arg = MethodType.methodType(int.class, Integer.class);
41 MethodHandle mh_spreadInvoker = MethodHandles.spreadInvoker(mt_ref_arg, 0);
42 MethodHandle mh_spread_target;
43 int result = 42;
44
45 try {
46 mh_spread_target =
47 MethodHandles.lookup().findStatic(SpreadNullArg.class, "target_spread_arg", mt_ref_arg);
48 result = (int) mh_spreadInvoker.invokeExact(mh_spread_target, (Object[]) null);
49 } catch(NullPointerException e) {
50 // Expected exception - do nothing!
51 } catch(Throwable e) {
52 throw new Error(e);
53 }
54
55 if (result != 42) throw new Error("Expected NullPointerException was not thrown");
56 }
57
58 public static int target_spread_arg(Integer i1) {
59 return i1.intValue();
60 }
61
62 }