PrematureLoadTest.java revision 2362
0N/A/*
2362N/A * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
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0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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0N/A */
0N/A
0N/A/*
0N/A *
0N/A *
0N/A * Basic unit test for Instrumentation appendToBootstrapClassLoaderSearch and
0N/A * appendToSystemClassLoaderSearch methods:
0N/A *
0N/A * 1. Attempt to load a class that does not exist.
0N/A *
0N/A * 2. Add a jar file to the class path with the missing class.
0N/A *
0N/A * 3. Attempt to load the class again - CNF should be thrown as the JVMS requires that
0N/A * the error from the first resolution attempt should be thrown.
0N/A */
0N/Aimport java.lang.instrument.Instrumentation;
0N/Aimport java.util.jar.JarFile;
0N/Aimport java.io.IOException;
0N/A
0N/Apublic class PrematureLoadTest {
0N/A
0N/A static int failures = 0;
0N/A
0N/A public static void main(String args[]) throws IOException {
0N/A
0N/A try {
0N/A new BootSupport();
0N/A throw new RuntimeException("Test configuration error - BootSupport loaded unexpectedly!");
0N/A } catch (NoClassDefFoundError x) {
0N/A }
0N/A
0N/A try {
0N/A new AgentSupport();
0N/A throw new RuntimeException("Test configuration error - AgentSupport loaded unexpectedly!");
0N/A } catch (NoClassDefFoundError x) {
0N/A }
0N/A
0N/A
0N/A JarFile bootclasses = new JarFile("BootSupport.jar");
0N/A JarFile agentclasses = new JarFile("AgentSupport.jar");
0N/A
0N/A Instrumentation ins = Agent.getInstrumentation();
0N/A
0N/A ins.appendToBootstrapClassLoaderSearch(bootclasses);
0N/A try {
0N/A new BootSupport();
0N/A System.out.println("FAIL: BootSupport resolved");
0N/A failures++;
0N/A } catch (NoClassDefFoundError x) {
0N/A System.out.println("PASS: BootSupport failed to resolve");
0N/A }
0N/A
0N/A try {
0N/A ins.appendToSystemClassLoaderSearch(agentclasses);
0N/A try {
0N/A new AgentSupport();
0N/A System.out.println("FAIL: AgentSupport resolved");
0N/A failures++;
0N/A } catch (NoClassDefFoundError x) {
0N/A System.out.println("PASS: AgentSupport failed to resolve");
0N/A }
0N/A } catch (UnsupportedOperationException x) {
0N/A System.out.println("System class loader does not support adding to class path");
0N/A }
0N/A
0N/A if (failures > 0) {
0N/A throw new RuntimeException(failures + " test(s) failed.");
0N/A }
0N/A }
0N/A}