test/tools/javac/typeAnnotations/failures/LintCast.java

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1 /*
2 * Copyright 2008 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 */
23
24 import java.util.List;
25
26 /*
27 * @test
28 * @bug 6843077
29 * @summary test that compiler doesn't warn about annotated redundant casts
30 * @author Mahmood Ali
31 * @compile/ref=LintCast.out -Xlint:cast -XDrawDiagnostics -source 1.7 LintCast.java
32 */
33 class LintCast {
34 void unparameterized() {
35 String s = "m";
36 String s1 = (String)s;
37 String s2 = (@A String)s;
38 }
39
40 void parameterized() {
41 List<String> l = null;
42 List<String> l1 = (List<String>)l;
43 List<String> l2 = (List<@A String>)l;
44 }
45
46 void array() {
47 int @A [] a = null;
48 int[] a1 = (int[])a;
49 int[] a2 = (int @A [])a;
50 }
51
52 void sameAnnotations() {
53 @A String annotated = null;
54 String unannotated = null;
55
56 // compiler ignore annotated casts even if redundant
57 @A String anno1 = (@A String)annotated;
58
59 // warn if redundant without an annotation
60 String anno2 = (String)annotated;
61 String unanno2 = (String)unannotated;
62 }
63 }
64
65 @interface A { }

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