76 lines
2.7 KiB
Java
76 lines
2.7 KiB
Java
/*
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* Copyright (c) 2014, 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.io.*;
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import java.lang.instrument.*;
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public class RedefineMethodDelInvokeApp {
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public static void main(String args[]) {
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System.out.println("Hello from RedefineMethodDelInvokeApp!");
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try {
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new RedefineMethodDelInvokeApp().doTest();
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} catch (Exception ex) {
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System.out.println("Exception has been caught");
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ex.printStackTrace();
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System.exit(1);
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}
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System.exit(0);
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}
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private void doTest() throws Exception {
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RedefineMethodDelInvokeTarget target =
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new RedefineMethodDelInvokeTarget();
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System.out.println("RedefineMethodDelInvokeApp: invoking myMethod0(), myMethod1(), myMethod2()");
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target.test();
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// delete myMethod2()
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do_redefine(1);
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System.out.println("RedefineMethodDelInvokeApp: invoking myMethod0(), myMethod1()");
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target.test();
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// delete myMethod1()
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do_redefine(2);
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System.out.println("RedefineMethodDelInvokeApp: invoking myMethod0()");
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target.test();
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}
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private static void do_redefine(int counter) throws Exception {
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File f = new File("RedefineMethodDelInvokeTarget_" + counter +
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".class");
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System.out.println("Reading test class from " + f);
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InputStream redefineStream = new FileInputStream(f);
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byte[] redefineBuffer = NamedBuffer.loadBufferFromStream(redefineStream);
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ClassDefinition redefineParamBlock = new ClassDefinition(
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RedefineMethodDelInvokeTarget.class, redefineBuffer);
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RedefineMethodDelInvokeAgent.getInstrumentation().redefineClasses(
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new ClassDefinition[] {redefineParamBlock});
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}
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}
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