1 /*

     2  * Copyright (c) 2014, 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 /*

    26  * @test

    27  * @bug 8034275

    28  * @summary [JDK 8u40] Test interface initialization order

    29  * @run main TestInterfaceOrder

    30  */

    31 

    32 import java.util.List;

    33 import java.util.Arrays;

    34 import java.util.ArrayList;

    35 

    36 public class TestInterfaceOrder {

    37   static List<Class<?>> cInitOrder = new ArrayList<>();

    38 

    39   public static void main(java.lang.String[] args) {

    40     //Trigger initialization

    41     C c = new C();

    42 

    43     List<Class<?>> expectedCInitOrder = Arrays.asList(I.class, J.class, A.class, K.class, B.class, L.class, C.class);

    44     if (!cInitOrder.equals(expectedCInitOrder)) {

    45       throw new RuntimeException(String.format("Class initialization order %s not equal to expected order %s", cInitOrder, expectedCInitOrder));

    46     }

    47   }

    48 

    49   interface I {

    50     boolean v = TestInterfaceOrder.out(I.class);

    51    default void i() {}

    52   }

    53 

    54   interface J extends I {

    55     boolean v = TestInterfaceOrder.out(J.class);

    56     default void j() {}

    57   }

    58 

    59   static class A implements J {

    60     static boolean v = TestInterfaceOrder.out(A.class);

    61   }

    62 

    63   interface K extends I {

    64     boolean v = TestInterfaceOrder.out(K.class);

    65     default void k() {}

    66   }

    67 

    68   static class B extends A implements K {

    69     static boolean v = TestInterfaceOrder.out(B.class);

    70   }

    71 

    72   interface L  {

    73     boolean v = TestInterfaceOrder.out(L.class);

    74     default void l() {}

    75   }

    76 

    77   static class C extends B implements L {

    78     static boolean v = TestInterfaceOrder.out(C.class);

    79   }

    80 

    81 

    82    static boolean out(Class c) {

    83        System.out.println("#: initializing " + c.getName());

    84        cInitOrder.add(c);

    85        return true;

    86    }

    87 

    88 }