test/hotspot/jtreg/runtime/InnerClassesAttr/InnerClassesTest.jasm
author hseigel
Thu, 11 Oct 2018 10:11:18 -0400
changeset 52096 7a1e2d7ac55a
permissions -rw-r--r--
8079784: Unexpected IllegalAccessError when trying access InnerClasses attribute Summary: Prevent classes in the InnerClasses attribute from being loaded unless they are actually being accessed. Reviewed-by: dholmes, lfoltan

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
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 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 */

/**
 * @test
 * @bug 8079784
 * @compile InnerClassesTest.jasm Base.java Child.java
 * @run main com.n.InnerClassesTest
 */

// Test that if a class's InnerClasses attribute contains a class that is not
// accessible to the class with the attribute then an IllegalAccessError
// exception should not get thrown as a result of the class accessing other
// classes in the InnerClasses attribute.
//
// In this test, class InnerClassesTest has an InnerClasses attribute with two
// entries.  One for inaccessable (non-public) class com/g/Base and class
// con/g/Base$Builder.  And, one entry for classes com/n/InnerClassTest and
// com/n/InnerClasses/Test$Foo.  The test accesses com/n/InnerClsses/Test$Foo
// by calling getSimpleName().  This should not cause an IllegalAccessError
// exception to get thrown.
//
//
// This jasm code was generated from the following Java code.  The only
// difference is that, in the jasm code, the order of the entries in the
// InnerClasses attributes for class InnerClassesTest were switched.
//
// package com.n;
// import com.g.Child;
//
// public final class InnerClassesTest {
//
//     public static final class Foo { }
//     void unused() {
//         new Child().setJobName();
//     }
//
//     public static void main(String[] args) {
//         Class<?> clazz = InnerClassesTest.Foo.class;
//         clazz.getSimpleName();
//     }
// }

package com/n;

super public final class InnerClassesTest$Foo version 53:0 {

    public Method "<init>":"()V" stack 1 locals 1 {
        aload_0;
        invokespecial Method java/lang/Object."<init>":"()V";
        return;
    }

public static final InnerClass Foo=class InnerClassesTest$Foo of class InnerClassesTest;

} // end Class InnerClassesTest$Foo


super public final class InnerClassesTest version 53:0 {


    public Method "<init>":"()V" stack 1 locals 1 {
        aload_0;
        invokespecial    Method java/lang/Object."<init>":"()V";
        return;
    }

    Method unused:"()V" stack 2 locals 1 {
        new    class com/g/Child;
        dup;
        invokespecial    Method com/g/Child."<init>":"()V";
        invokevirtual    Method com/g/Child.setJobName:"()Lcom/g/Base$Builder;";
        pop;
        return;
    }

    public static Method main:"([Ljava/lang/String;)V" stack 1 locals 2 {
        ldc    class InnerClassesTest$Foo;
        astore_1;
        aload_1;
        invokevirtual    Method java/lang/Class.getSimpleName:"()Ljava/lang/String;";
        pop;
        return;
    }

static InnerClass Builder=class com/g/Base$Builder of class com/g/Base;
public static final InnerClass Foo=class InnerClassesTest$Foo of class InnerClassesTest;

} // end Class InnerClassesTest