1 /*
   2  * Copyright 2003 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 /*
  25  * @test
  26  * @bug 4881179 4883239
  27  * @summary Rule for semantics of ?: in the presence of generics and generic class Class
  28  * @author gafter
  29  *
  30  * @compile -source 1.5 Conditional.java
  31  */
  32 
  33 package conditional;
  34 
  35 import java.io.Serializable;
  36 
  37 interface I {}
  38 interface J {}
  39 class A implements I, J {}
  40 class B implements I, J {}
  41 class C extends B {}
  42 
  43 class Conditional {
  44     static boolean cond = String.class.getName().length() == 1;
  45     public static void main(String[] args) {
  46         Class c = cond ? A.class : B.class;
  47         Class<?> d = cond ? A.class : B.class;
  48 
  49         Class<? extends B> e = cond ? B.class : C.class;
  50     }
  51 
  52     void f(A a, B b) {
  53         I i = cond ? a : b;
  54         J j = cond ? a : b;
  55     }
  56 
  57     // required for compatibility
  58     Class g(Class a) {
  59         return cond ? a : B.class;
  60     }
  61 
  62     // required for compatibility
  63     byte[] h(byte[] a, byte[] b) {
  64         return cond ? a : b;
  65     }
  66 
  67     // This one is hard because of the recursive F-bounds
  68     // The naive result is the infinite type
  69     // Class<? extends Number&Comparable<? extends Number&Comparable<? extends
  70     // ...
  71     Class<? extends Comparable<?>> c =
  72         cond ? Integer.class : Float.class;
  73 
  74     Comparable<?> o =
  75         cond ? true : 3;
  76 
  77     /*
  78 
  79     // See 4942040
  80     void f(Cloneable a, int[] b) {
  81         Cloneable x = cond ? a : b;
  82     }
  83     void f(Serializable a, int[] b) {
  84         Serializable x = cond ? a : b;
  85     }
  86 
  87     // See 4941882
  88     void f(float[] a, int[] b) {
  89         Serializable x = cond ? a : b;
  90     }
  91     */
  92 }