1 /*

     2  * Copyright (c) 2013, 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  * @test

    26  * @bug 8027789

    27  * @summary check that the direct superclass is used as the site when calling

    28  *          a superclass' method

    29  * @compile Base.java NonDirectSuper.java

    30  * @compile -source 1.2 -target 1.1 Target11.java

    31  * @run main test.NonDirectSuper

    32  */

    33 

    34 package test;

    35 

    36 import java.io.File;

    37 

    38 import com.sun.tools.classfile.Attribute;

    39 import com.sun.tools.classfile.ClassFile;

    40 import com.sun.tools.classfile.Code_attribute;

    41 import com.sun.tools.classfile.ConstantPool.CPRefInfo;

    42 import com.sun.tools.classfile.Instruction;

    43 import com.sun.tools.classfile.Method;

    44 import com.sun.tools.classfile.Opcode;

    45 

    46 public class NonDirectSuper {

    47     public static void main(String... args) {

    48         new NonDirectSuper().run();

    49     }

    50 

    51     void run() {

    52         String workDir = System.getProperty("test.classes");

    53         File testPackage = new File(workDir, "test");

    54 

    55         for (File clazz : testPackage.listFiles()) {

    56             if ("NonDirectSuper.class".equals(clazz.getName())) continue;

    57             verifyInvokeSpecialRefToObject(clazz);

    58         }

    59     }

    60 

    61     void verifyInvokeSpecialRefToObject(File clazz) {

    62         try {

    63             final ClassFile cf = ClassFile.read(clazz);

    64             for (Method m : cf.methods) {

    65                 Code_attribute codeAttr = (Code_attribute)m.attributes.get(Attribute.Code);

    66                 for (Instruction instr : codeAttr.getInstructions()) {

    67                     if (instr.getOpcode() == Opcode.INVOKESPECIAL ||

    68                         instr.getOpcode() == Opcode.INVOKEVIRTUAL) {

    69                         int pc_index = instr.getShort(1);

    70                         CPRefInfo ref = (CPRefInfo)cf.constant_pool.get(pc_index);

    71                         String className = ref.getClassName();

    72                         String methodName = ref.getNameAndTypeInfo().getName();

    73                         if (methodName.equals("toString")) {

    74                             if (!className.equals("java/lang/Object"))

    75                                 throw new IllegalStateException("Must directly refer to j.l.Object");

    76                         } else if (methodName.startsWith("refTo")) {

    77                             String expectedClass = methodName.substring("refTo".length());

    78                             if (!className.replace("/", "").equals(expectedClass)) {

    79                                 throw new IllegalStateException("Unexpected reference to: " +

    80                                         className + ", should be " + expectedClass);

    81                             }

    82                         }

    83                     }

    84                     if (instr.getOpcode() == Opcode.GETFIELD ||

    85                         instr.getOpcode() == Opcode.PUTFIELD) {

    86                         int pc_index = instr.getShort(1);

    87                         CPRefInfo ref = (CPRefInfo)cf.constant_pool.get(pc_index);

    88                         String className = ref.getClassName();

    89                         String fieldName = ref.getNameAndTypeInfo().getName();

    90                         if (fieldName.startsWith("refTo")) {

    91                             String expectedClass = fieldName.substring("refTo".length());

    92                             if (!className.replace("/", "").equals(expectedClass)) {

    93                                 throw new IllegalStateException("Unexpected reference to: " +

    94                                         className + ", should be " + expectedClass);

    95                             }

    96                         }

    97                     }

    98                 }

    99             }

   100         } catch (Exception e) {

   101             e.printStackTrace();

   102             throw new Error("error reading " + clazz +": " + e);

   103         }

   104     }

   105 }

   106 

   107 class OtherPackageTest extends base.Base {

   108     void run() {

   109         new Runnable() {

   110             public void run() {

   111                 OtherPackageTest.super.refTobaseBase();

   112                 OtherPackageTest.super.refTobaseBase = OtherPackageTest.super.refTobaseBase + 1;

   113                 OtherPackageTest.super.toString();

   114                 refTotestOtherPackageTest();

   115                 refTotestOtherPackageTest = refTotestOtherPackageTest + 1;

   116                 OtherPackageTest.this.refTotestOtherPackageTest();

   117                 OtherPackageTest.this.refTotestOtherPackageTest =

   118                         OtherPackageTest.this.refTotestOtherPackageTest + 1;

   119             }

   120         }.run();

   121         super.refTobaseBase();

   122         super.refTobaseBase = super.refTobaseBase + 1;

   123         super.toString();

   124         OtherPackageTest.super.refTobaseBase();

   125         OtherPackageTest.super.refTobaseBase = OtherPackageTest.super.refTobaseBase + 1;

   126         OtherPackageTest.super.toString();

   127         refTotestOtherPackageTest();

   128         refTotestOtherPackageTest = refTotestOtherPackageTest + 1;

   129     }

   130 

   131     static class InnerBase {

   132         private void refTotestOtherPackageTest$InnerBase() { }

   133     }

   134     static class InnerTest extends InnerBase {

   135         void run() {

   136             new Runnable() {

   137                 public void run() {

   138                     InnerTest.super.refTotestOtherPackageTest$InnerBase();

   139                 }

   140             }.run();

   141             super.refTotestOtherPackageTest$InnerBase();

   142             InnerTest.super.refTotestOtherPackageTest$InnerBase();

   143         }

   144     }

   145 }

   146 

   147 class CurPackagePrivateBase {

   148     void refTotestCurPackagePrivateExt() { }

   149     void refTotestCurPackagePrivateTest() { }

   150     int refTotestCurPackagePrivateExt;

   151     int refTotestCurPackagePrivateTest;

   152 }

   153 

   154 class CurPackagePrivateExt extends CurPackagePrivateBase {

   155 }

   156 

   157 class CurPackagePrivateTest extends CurPackagePrivateExt {

   158     void run() {

   159         new Runnable() {

   160             public void run() {

   161                 CurPackagePrivateTest.super.refTotestCurPackagePrivateExt();

   162                 CurPackagePrivateTest.super.refTotestCurPackagePrivateExt =

   163                         CurPackagePrivateTest.super.refTotestCurPackagePrivateExt + 1;

   164                 CurPackagePrivateTest.this.refTotestCurPackagePrivateTest();

   165                 CurPackagePrivateTest.this.refTotestCurPackagePrivateTest =

   166                         CurPackagePrivateTest.this.refTotestCurPackagePrivateTest + 1;

   167                 refTotestCurPackagePrivateTest();

   168                 refTotestCurPackagePrivateTest = refTotestCurPackagePrivateTest + 1;

   169             }

   170         }.run();

   171         super.refTotestCurPackagePrivateExt();

   172         super.refTotestCurPackagePrivateExt = super.refTotestCurPackagePrivateExt + 1;

   173         CurPackagePrivateTest.super.refTotestCurPackagePrivateExt();

   174         CurPackagePrivateTest.super.refTotestCurPackagePrivateExt =

   175                 CurPackagePrivateTest.super.refTotestCurPackagePrivateExt + 1;

   176         refTotestCurPackagePrivateTest();

   177         refTotestCurPackagePrivateTest = refTotestCurPackagePrivateTest + 1;

   178     }

   179 }