test/tools/javac/lambda/LambdaCapture07.java

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1 /*
2 * Copyright (c) 2013, Oracle and/or its affiliates. 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
26 * @bug 8004962
27 * @summary Code generation crash with lambda and local classes
28 */
29 public class LambdaCapture07 {
30
31 static int assertionCount = 0;
32
33 static void assertTrue(boolean cond) {
34 assertionCount++;
35 if (!cond)
36 throw new AssertionError();
37 }
38
39 interface SAM {
40 void m();
41 }
42
43 void test(int i) {
44 class Local { Local() { assertTrue(i == 42); } }
45 class LocalSub extends Local { }
46 SAM s_sup = ()->new Local();
47 s_sup.m();
48 SAM s_sub = ()->new LocalSub();
49 s_sub.m();
50 SAM s_sup_nested = ()->{ SAM s = ()->new Local(); s.m(); };
51 s_sup_nested.m();
52 SAM s_sub_nested = ()->{ SAM s = ()->new LocalSub(); s.m(); };
53 s_sub_nested.m();
54 }
55
56 public static void main(String[] args) {
57 new LambdaCapture07().test(42);
58 assertTrue(assertionCount == 4);
59 }
60 }

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