65 lines
2.1 KiB
Java
65 lines
2.1 KiB
Java
/*
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* Copyright (c) 2005, 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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*
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* Unit test for Instrumentation appendToBootstrapClassLoaderSearch:
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*
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* 1. Reference class A. Resolving this class should fail with
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* ClassCircularityError.
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*
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* 2. Add JAR file to boot class path which contains a "good"
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* version of A.
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*
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* 3. Re-run the code for 1 again - it should fail with
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* ClassCircularityError again.
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*/
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import java.lang.instrument.Instrumentation;
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import java.util.jar.JarFile;
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public class CircularityErrorTest {
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static Instrumentation ins;
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static void resolve() {
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try {
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Class c = A.class;
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throw new RuntimeException("Test failed - class A loaded by: " +
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c.getClassLoader());
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} catch (ClassCircularityError e) {
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System.err.println(e);
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}
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}
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public static void main(String args[]) throws Exception {
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resolve();
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ins.appendToBootstrapClassLoaderSearch(new JarFile("A.jar"));
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resolve();
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}
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public static void premain(String args, Instrumentation i) {
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ins = i;
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}
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}
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