81 lines
3.3 KiB
Java
81 lines
3.3 KiB
Java
/*
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* Copyright (c) 2013, 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 RedefineSubclassWithTwoInterfacesApp {
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public static void main(String args[]) throws Exception {
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System.out.println("Hello from RedefineSubclassWithTwoInterfacesApp!");
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new RedefineSubclassWithTwoInterfacesApp().doTest();
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System.exit(0);
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}
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private void doTest() throws Exception {
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RedefineSubclassWithTwoInterfacesImpl impl
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= new RedefineSubclassWithTwoInterfacesImpl();
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RedefineSubclassWithTwoInterfacesRemote remote
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= new RedefineSubclassWithTwoInterfacesRemote(impl, impl);
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String mesg;
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// make echo() calls before any redefinitions:
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mesg = remote.echo1("test message #1.1");
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System.out.println("RedefineSubclassWithTwoInterfacesApp: echo1 mesg='"
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+ mesg + "' before any redefines");
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mesg = remote.echo2("test message #2.1");
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System.out.println("RedefineSubclassWithTwoInterfacesApp: echo2 mesg='"
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+ mesg + "' before any redefines");
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// redefining RedefineSubclassWithTwoInterfacesImpl before
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// RedefineSubclassWithTwoInterfacesTarget fails:
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do_redefine("RedefineSubclassWithTwoInterfacesImpl", 1);
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do_redefine("RedefineSubclassWithTwoInterfacesTarget", 1);
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mesg = remote.echo1("test message #1.2");
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System.out.println("RedefineSubclassWithTwoInterfacesApp: echo1 mesg='"
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+ mesg + "' after redefine");
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mesg = remote.echo2("test message #2.2");
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System.out.println("RedefineSubclassWithTwoInterfacesApp: echo2 mesg='"
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+ mesg + "' after redefine");
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}
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private static void do_redefine(String className, int counter)
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throws Exception {
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File f = new File(className + "_" + counter + ".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
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= NamedBuffer.loadBufferFromStream(redefineStream);
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ClassDefinition redefineParamBlock = new ClassDefinition(
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Class.forName(className), redefineBuffer);
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RedefineSubclassWithTwoInterfacesAgent.getInstrumentation().
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redefineClasses(new ClassDefinition[] {redefineParamBlock});
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}
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}
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