hotspot/test/runtime/classFileParserBug/fakeMethodAccessor.jasm
author alanb
Fri, 07 Apr 2017 08:04:46 +0000
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8177530: Module system implementation refresh (4/2017) Reviewed-by: lfoltan, sspitsyn Contributed-by: alan.bateman@oracle.com, harold.seigel@oracle.com, mandy.chung@oracle.com
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/*
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 * Copyright (c) 2016, 2017, 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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 // This is the Java representation of the below jasm code.  The test tries
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 // to create a sub-type of jdk.internal.reflect.MethodAccessorImpl in order
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 // to bypass Reflection.getCallerClass.  That should fail with an IAE.
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 //
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 class fakeMethodAccessor extends jdk.internal.reflect.MethodAccessorImpl {
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     public static void main(String[] a) throws Exception {
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        fakeMethodAccessor f = new fakeMethodAccessor();
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        System.out.println(String.class.getModule()
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           .isExported("jdk.internal.misc", fakeMethodAccessor.class.getModule()));
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     }
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 }
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*/
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super class fakeMethodAccessor
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    extends jdk/internal/reflect/MethodAccessorImpl
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    version 53:0
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{
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Method "<init>":"()V"
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    stack 1 locals 1
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{
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        aload_0;
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        invokespecial    Method jdk/internal/reflect/MethodAccessorImpl."<init>":"()V";
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        return;
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}
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public static Method main:"([Ljava/lang/String;)V"
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    throws java/lang/Exception
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    stack 4 locals 2
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{
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        new    class FakeMethodAccessor;
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        dup;
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        invokespecial    Method "<init>":"()V";
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        astore_1;
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        getstatic    Field java/lang/System.out:"Ljava/io/PrintStream;";
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        ldc    class java/lang/String;
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        invokevirtual    Method java/lang/Class.getModule:"()Ljava/lang/Module;";
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        ldc    String "jdk.internal.misc";
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        ldc    class FakeMethodAccessor;
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        invokevirtual    Method java/lang/Class.getModule:"()Ljava/lang/Module;";
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        invokevirtual    Method java/lang/Module.isExported:"(Ljava/lang/String;Ljava/lang/Module;)Z";
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        invokevirtual    Method java/io/PrintStream.println:"(Z)V";
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        return;
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}
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} // end Class FakeMethodAccessor