1 /*
2  * Copyright (c) 2010, 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 6970833
27  * @author Maurizio Cimadamore
28  * @summary Try-with-resource implementation throws an NPE during Flow analysis
29  * @compile/fail/ref=ResourceInterface.out -XDrawDiagnostics ResourceInterface.java
30  */
31 
32 class ResourceInterface {
test1()33     public void test1() {
34         try(Resource1 r1 = null) { }
35     }
36 
test2()37     public void test2() {
38         try(Resource2 r2 = null) { }
39     }
40 
41     static class E1 extends Exception {}
42 
43     static class E2 extends Exception {}
44 
45 
46     interface C1 extends AutoCloseable {
close()47        void close() throws E1;
48     }
49 
50     interface C2 extends AutoCloseable {
close()51        void close() throws E2;
52     }
53 
54     interface C3 extends AutoCloseable {
close()55        void close() throws E2, E1;
56     }
57 
58     static interface Resource1 extends C1, C2 {}
59 
60     static interface Resource2 extends C1, C3 {}
61 }
62