1 /*
   2  * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved.
   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
   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
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  23 
  24 /**
  25  * @test
  26  * @bug 4654698
  27  * @summary Verify that expected methods are returned for star inheritance.
  28  */
  29 
  30 import java.lang.reflect.Method;
  31 import java.util.Arrays;
  32 import java.util.ArrayList;
  33 
  34 // D.m
  35 interface A1 extends B1, C1 {}
  36 interface B1 extends D1 {}
  37 interface C1 extends D1 {}
  38 interface D1 { void m(); }
  39 
  40 // A.m
  41 interface A2 extends B2, C2 { void m(); }
  42 interface B2 extends D2 {}
  43 interface C2 extends D2 {}
  44 interface D2 { void m(); }
  45 
  46 // B.m, C.m
  47 interface A3 extends B3, C3 {}
  48 interface B3 extends D3 { void m(); }
  49 interface C3 extends D3 { void m(); }
  50 interface D3 { void m() ; }
  51 
  52 // B.m, D.m
  53 interface A4 extends B4, C4 {}
  54 interface B4 extends D4 { void m(); }
  55 interface C4 extends D4 {}
  56 interface D4 { void m(); }
  57 
  58 public class StarInheritance {
  59     private static int n = 1;
  60 
  61     private static void test(Method [] ma, ArrayList expect) {
  62         System.out.println("Test " + n++);
  63 
  64         if (expect.size() != ma.length) {
  65             System.err.println("  found methods: " + Arrays.asList(ma));
  66             System.err.println("  expected locations: " + expect);
  67             throw new RuntimeException("found = " + ma.length
  68                                        +"; expected = " + expect.size());
  69         }
  70 
  71         for (int i = 0; i < ma.length; i++) {
  72             Method m = ma[i];
  73             System.out.println("  " + m.toString());
  74             int n;
  75             if (m.getName().equals("m")
  76                 && (n = expect.indexOf(m.getDeclaringClass())) != -1) {
  77                 expect.remove(n);
  78             } else {
  79                 throw new RuntimeException("unable to locate method in class: "
  80                                            + m.getDeclaringClass());
  81             }
  82         }
  83     }
  84 
  85     public static void main(String [] args) {
  86         Class [] l1 = {D1.class};
  87         test(A1.class.getMethods(), new ArrayList(Arrays.asList(l1)));
  88 
  89         Class [] l2 = {A2.class};
  90         test(A2.class.getMethods(), new ArrayList(Arrays.asList(l2)));
  91 
  92         Class [] l3 = {B3.class, C3.class};
  93         test(A3.class.getMethods(), new ArrayList(Arrays.asList(l3)));
  94 
  95         Class [] l4 = {B4.class, D4.class};
  96         test(A4.class.getMethods(), new ArrayList(Arrays.asList(l4)));
  97     }
  98 }