8027281: Incorrect invokespecial generated for JCK lang EXPR/expr636/expr63602m* tests

Wed, 06 Nov 2013 17:48:25 +0100

author
jlahoda
date
Wed, 06 Nov 2013 17:48:25 +0100
changeset 2183
75c8cde12ab6
parent 2182
126dc007ba3f
child 2184
e39bd9401ea5

8027281: Incorrect invokespecial generated for JCK lang EXPR/expr636/expr63602m* tests
Summary: When invoking interface default method via a superclass, use the direct superclass in the reference.
Reviewed-by: vromero, dlsmith, jjg

src/share/classes/com/sun/tools/javac/comp/Lower.java file | annotate | diff | comparison | revisions
test/tools/javac/defaultMethods/super/TestDirectSuperInterfaceInvoke.java file | annotate | diff | comparison | revisions
     1.1 --- a/src/share/classes/com/sun/tools/javac/comp/Lower.java	Mon Nov 04 18:51:56 2013 -0800
     1.2 +++ b/src/share/classes/com/sun/tools/javac/comp/Lower.java	Wed Nov 06 17:48:25 2013 +0100
     1.3 @@ -1378,7 +1378,11 @@
     1.4              ref = make.Ident(sym);
     1.5              args = make.Idents(md.params);
     1.6          } else {
     1.7 -            ref = make.Select(make.Ident(md.params.head), sym);
     1.8 +            Symbol msym = sym;
     1.9 +            if (sym.owner.isInterface()) {
    1.10 +                msym = msym.clone(types.supertype(accessor.owner.type).tsym);
    1.11 +            }
    1.12 +            ref = make.Select(make.Ident(md.params.head), msym);
    1.13              args = make.Idents(md.params.tail);
    1.14          }
    1.15          JCStatement stat;          // The statement accessing the private symbol.
     2.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     2.2 +++ b/test/tools/javac/defaultMethods/super/TestDirectSuperInterfaceInvoke.java	Wed Nov 06 17:48:25 2013 +0100
     2.3 @@ -0,0 +1,107 @@
     2.4 +/*
     2.5 + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
     2.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     2.7 + *
     2.8 + * This code is free software; you can redistribute it and/or modify it
     2.9 + * under the terms of the GNU General Public License version 2 only, as
    2.10 + * published by the Free Software Foundation.
    2.11 + *
    2.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    2.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    2.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    2.15 + * version 2 for more details (a copy is included in the LICENSE file that
    2.16 + * accompanied this code).
    2.17 + *
    2.18 + * You should have received a copy of the GNU General Public License version
    2.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    2.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    2.21 + *
    2.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    2.23 + * or visit www.oracle.com if you need additional information or have any
    2.24 + * questions.
    2.25 + */
    2.26 +
    2.27 +/*
    2.28 + * @test
    2.29 + * @bug 8027281
    2.30 + * @summary As per JVMS 4.9.2, invokespecial can only refer to direct superinterfaces
    2.31 + * @compile TestDirectSuperInterfaceInvoke.java
    2.32 + * @run main TestDirectSuperInterfaceInvoke
    2.33 + */
    2.34 +
    2.35 +import java.io.File;
    2.36 +import com.sun.tools.classfile.Attribute;
    2.37 +import com.sun.tools.classfile.ClassFile;
    2.38 +import com.sun.tools.classfile.Code_attribute;
    2.39 +import com.sun.tools.classfile.ConstantPool.CPRefInfo;
    2.40 +import com.sun.tools.classfile.Instruction;
    2.41 +import com.sun.tools.classfile.Method;
    2.42 +import com.sun.tools.classfile.Opcode;
    2.43 +
    2.44 +interface BaseInterface {
    2.45 +    public default int testedMethod(){ return 1; }
    2.46 +}
    2.47 +
    2.48 +interface IntermediateInterface extends BaseInterface {
    2.49 +}
    2.50 +
    2.51 +interface TestInterface extends IntermediateInterface {
    2.52 +    public default void test() {
    2.53 +        IntermediateInterface.super.testedMethod();
    2.54 +    }
    2.55 +}
    2.56 +
    2.57 +abstract class BaseClass implements BaseInterface { }
    2.58 +
    2.59 +class TestClass extends BaseClass implements BaseInterface {
    2.60 +    public int testedMethod() {return 9;}
    2.61 +    public void test() {
    2.62 +        if (super.testedMethod() != 1)
    2.63 +            throw new IllegalStateException();
    2.64 +        if (TestClass.super.testedMethod() != 1)
    2.65 +            throw new IllegalStateException();
    2.66 +        new Runnable() {
    2.67 +            public void run() {
    2.68 +                if (TestClass.super.testedMethod() != 1)
    2.69 +                    throw new IllegalStateException();
    2.70 +            }
    2.71 +        }.run();
    2.72 +    }
    2.73 +}
    2.74 +
    2.75 +public class TestDirectSuperInterfaceInvoke {
    2.76 +    public static void main(String... args) throws Exception {
    2.77 +        new TestDirectSuperInterfaceInvoke().run();
    2.78 +    }
    2.79 +
    2.80 +    public void run() throws Exception {
    2.81 +        new TestClass().test();
    2.82 +        verifyDefaultBody("TestClass.class");
    2.83 +        new TestInterface() {}.test();
    2.84 +        verifyDefaultBody("TestInterface.class");
    2.85 +    }
    2.86 +
    2.87 +    void verifyDefaultBody(String classFile) {
    2.88 +        String workDir = System.getProperty("test.classes");
    2.89 +        File file = new File(workDir, classFile);
    2.90 +        try {
    2.91 +            final ClassFile cf = ClassFile.read(file);
    2.92 +            for (Method m : cf.methods) {
    2.93 +                Code_attribute codeAttr = (Code_attribute)m.attributes.get(Attribute.Code);
    2.94 +                for (Instruction instr : codeAttr.getInstructions()) {
    2.95 +                    if (instr.getOpcode() == Opcode.INVOKESPECIAL) {
    2.96 +                        int pc_index = instr.getShort(1);
    2.97 +                        CPRefInfo ref = (CPRefInfo)cf.constant_pool.get(pc_index);
    2.98 +                        String className = ref.getClassName();
    2.99 +                        if (className.equals("BaseInterface"))
   2.100 +                            throw new IllegalStateException("Must not directly refer to TestedInterface");
   2.101 +                    }
   2.102 +                }
   2.103 +            }
   2.104 +        } catch (Exception e) {
   2.105 +            e.printStackTrace();
   2.106 +            throw new Error("error reading " + file +": " + e);
   2.107 +        }
   2.108 +    }
   2.109 +
   2.110 +}

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