test/hotspot/jtreg/runtime/InnerClassesAttr/InnerClassesTest.jasm
author hseigel
Thu, 11 Oct 2018 10:11:18 -0400
changeset 52096 7a1e2d7ac55a
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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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/*
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 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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/**
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 * @test
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 * @bug 8079784
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 * @compile InnerClassesTest.jasm Base.java Child.java
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 * @run main com.n.InnerClassesTest
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 */
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// Test that if a class's InnerClasses attribute contains a class that is not
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// accessible to the class with the attribute then an IllegalAccessError
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// exception should not get thrown as a result of the class accessing other
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// classes in the InnerClasses attribute.
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//
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// In this test, class InnerClassesTest has an InnerClasses attribute with two
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// entries.  One for inaccessable (non-public) class com/g/Base and class
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// con/g/Base$Builder.  And, one entry for classes com/n/InnerClassTest and
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// com/n/InnerClasses/Test$Foo.  The test accesses com/n/InnerClsses/Test$Foo
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// by calling getSimpleName().  This should not cause an IllegalAccessError
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// exception to get thrown.
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//
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//
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// This jasm code was generated from the following Java code.  The only
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// difference is that, in the jasm code, the order of the entries in the
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// InnerClasses attributes for class InnerClassesTest were switched.
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//
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// package com.n;
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// import com.g.Child;
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//
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// public final class InnerClassesTest {
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//
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//     public static final class Foo { }
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//     void unused() {
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//         new Child().setJobName();
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//     }
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//
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//     public static void main(String[] args) {
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//         Class<?> clazz = InnerClassesTest.Foo.class;
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//         clazz.getSimpleName();
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//     }
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// }
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package com/n;
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super public final class InnerClassesTest$Foo version 53:0 {
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    public Method "<init>":"()V" stack 1 locals 1 {
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        aload_0;
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        invokespecial Method java/lang/Object."<init>":"()V";
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        return;
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    }
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public static final InnerClass Foo=class InnerClassesTest$Foo of class InnerClassesTest;
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} // end Class InnerClassesTest$Foo
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super public final class InnerClassesTest version 53:0 {
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    public Method "<init>":"()V" stack 1 locals 1 {
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        aload_0;
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        invokespecial    Method java/lang/Object."<init>":"()V";
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        return;
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    }
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    Method unused:"()V" stack 2 locals 1 {
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        new    class com/g/Child;
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        dup;
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        invokespecial    Method com/g/Child."<init>":"()V";
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        invokevirtual    Method com/g/Child.setJobName:"()Lcom/g/Base$Builder;";
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        pop;
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        return;
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    }
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    public static Method main:"([Ljava/lang/String;)V" stack 1 locals 2 {
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        ldc    class InnerClassesTest$Foo;
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        astore_1;
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        aload_1;
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        invokevirtual    Method java/lang/Class.getSimpleName:"()Ljava/lang/String;";
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        pop;
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        return;
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    }
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static InnerClass Builder=class com/g/Base$Builder of class com/g/Base;
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public static final InnerClass Foo=class InnerClassesTest$Foo of class InnerClassesTest;
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} // end Class InnerClassesTest