69 lines
2.3 KiB
Java
69 lines
2.3 KiB
Java
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/*
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* Copyright (c) 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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import java.lang.reflect.Constructor;
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import java.lang.reflect.Method;
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/**
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* Launched by PermitIllegalAccess to attempt illegal access.
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*/
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public class AttemptAccess {
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public static void main(String[] args) throws Exception {
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String action = args[0];
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int count = Integer.parseInt(args[1]);
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for (int i=0; i<count; i++) {
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switch (action) {
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case "access":
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tryAccess();
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break;
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case "setAccessible":
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trySetAccessible();
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break;
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case "trySetAccessible":
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tryTrySetAccessible();
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break;
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}
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}
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}
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static void tryAccess() throws Exception {
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Class<?> clazz = Class.forName("sun.security.x509.X500Name");
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Constructor<?> ctor = clazz.getConstructor(String.class);
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Object name = ctor.newInstance("CN=user");
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}
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static void trySetAccessible() throws Exception {
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Method find = ClassLoader.class.getDeclaredMethod("findClass", String.class);
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find.setAccessible(true);
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}
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static void tryTrySetAccessible() throws Exception {
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Method find = ClassLoader.class.getDeclaredMethod("findClass", String.class);
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find.trySetAccessible();
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}
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}
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