1 /*
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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5  * This code is free software; you can redistribute it and/or modify it
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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  *
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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
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23 
24 /*
25  * @test
26  * @bug 6377356
27  * @summary Test EnumSet.retainAll
28  * @author Josh Bloch, Martin Buchholz
29  */
30 
31 import java.util.*;
32 
33 public class RetainAll {
34     enum RegularA { A0, A2 }
35     enum RegularB { B0, B1 }
36     enum JumboA {
37         A00, A01, A02, A03, A04, A05, A06, A07, A08, A09,
38         A10, A11, A12, A13, A14, A15, A16, A17, A18, A19,
39         A20, A21, A22, A23, A24, A25, A26, A27, A28, A29,
40         A30, A31, A32, A33, A34, A35, A36, A37, A38, A39,
41         A40, A41, A42, A43, A44, A45, A46, A47, A48, A49,
42         A50, A51, A52, A53, A54, A55, A56, A57, A58, A59,
43         A60, A61, A62, A63, A64, A65, A66, A67, A68, A69,
44     }
45     enum JumboB {
46         B00, B01, B02, B03, B04, B05, B06, B07, B08, B09,
47         B10, B11, B12, B13, B14, B15, B16, B17, B18, B19,
48         B20, B21, B22, B23, B24, B25, B26, B27, B28, B29,
49         B30, B31, B32, B33, B34, B35, B36, B37, B38, B39,
50         B40, B41, B42, B43, B44, B45, B46, B47, B48, B49,
51         B50, B51, B52, B53, B54, B55, B56, B57, B58, B59,
52         B60, B61, B62, B63, B64, B65, B66, B67, B68, B69,
53     }
54 
realMain(String[] args)55     private static void realMain(String[] args) throws Throwable {
56         Set<RegularA> ras = EnumSet.noneOf(RegularA.class);
57         Set<RegularB> rbs = EnumSet.noneOf(RegularB.class);
58         Set<JumboA>   jas = EnumSet.noneOf(JumboA.class);
59         Set<JumboB>   jbs = EnumSet.noneOf(JumboB.class);
60         check(ras.getClass().getName().matches(".*Regular.*"));
61         check(jas.getClass().getName().matches(".*Jumbo.*"));
62         check(! ras.retainAll(ras));
63         check(! ras.retainAll(rbs));
64         check(! jas.retainAll(jas));
65         check(! jas.retainAll(jbs));
66         check(! ras.retainAll(jas));
67         check(! jas.retainAll(ras));
68     }
69 
70     //--------------------- Infrastructure ---------------------------
71     static volatile int passed = 0, failed = 0;
pass()72     static void pass() {passed++;}
fail()73     static void fail() {failed++; Thread.dumpStack();}
fail(String msg)74     static void fail(String msg) {System.out.println(msg); fail();}
unexpected(Throwable t)75     static void unexpected(Throwable t) {failed++; t.printStackTrace();}
check(boolean cond)76     static void check(boolean cond) {if (cond) pass(); else fail();}
equal(Object x, Object y)77     static void equal(Object x, Object y) {
78         if (x == null ? y == null : x.equals(y)) pass();
79         else fail(x + " not equal to " + y);}
main(String[] args)80     public static void main(String[] args) throws Throwable {
81         try {realMain(args);} catch (Throwable t) {unexpected(t);}
82         System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
83         if (failed > 0) throw new AssertionError("Some tests failed");}
84 }
85