1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
/*
* Copyright (c) 2013, 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.
*
* 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
* @bug 8005653
* @summary A lambda containing an inner class referencing an external type var
* @author Robert Field
* @modules jdk.compiler
* jdk.jdeps/com.sun.tools.javap
* @run main LambdaInnerTypeVarReflect
*/
import java.io.StringWriter;
import java.io.PrintWriter;
import java.io.IOException;
public class LambdaInnerTypeVarReflect {
static int assertionCount = 0;
static void assertTrue(boolean cond) {
assertionCount++;
if (!cond)
throw new AssertionError();
}
interface I {
C doit();
}
abstract class C {
abstract Object it();
}
class TV {
C go() {
return foo("Frump").doit();
}
<RRRRR> I foo(RRRRR r) {
return () -> new C() {
public RRRRR xxxxx = r;
@Override
Object it() { return xxxxx; };
};
}
}
void test1() throws IOException {
char[] buffer = new char[1024];
String innerName = new TV().go().getClass().getName();
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
int exitCode = com.sun.tools.javap.Main.run(new String[] {innerName}, pw);
assertTrue(exitCode == 0);
String javapOut = sw.toString();
assertTrue(javapOut.contains(innerName));
assertTrue(!javapOut.contains("RRRRR"));
}
public static void main(String[] args) throws IOException {
LambdaInnerTypeVarReflect t = new LambdaInnerTypeVarReflect();
t.test1();
assertTrue(assertionCount == 3);
}
}
|
