111 lines
4.0 KiB
Java
111 lines
4.0 KiB
Java
/*
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* Copyright (c) 2016, 2019, 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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// This is a utlitity test class for loading classes-under-test
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// by means of custom class loader.
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// See AppCDS/jvmti/transformRelatedClasses/TransformRelatedClasses.java
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// for an example.
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// Use this test app in conjunction with other tests
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// to load and exercise classes using custom class loader(s).
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// This class is intended to be called by the "main test driver"
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// inside a child process, normally with sharing enabled.
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//
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// Arguments: customJarPath, loaderType, testClass
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// customJarPath - a path to jar file containing classes for
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// loading via this custom class loader, including the
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// testClass
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// loaderType - Currently only "unregistered"
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// (Fingerprint verification method) is allowed
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// testClass - the class to be loader; the test method with
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// signature 'public static void test()' will be called
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// on this class, so class must contain such method
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import java.io.File;
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import java.lang.reflect.Method;
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import java.net.URL;
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import java.net.URLClassLoader;
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import java.util.logging.Logger;
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public class CustomLoaderApp {
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public static void ping() {};
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private static void log(String msg) {
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System.out.println("CustomLoaderApp: " + msg);
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}
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public static void main(String[] args) throws Exception {
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String path = args[0];
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URL url = new File(path).toURI().toURL();
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URL[] urls = new URL[] {url};
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String loaderType = args[1];
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log("loaderType = " + loaderType);
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String testClass = args[2];
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log("testClass = " + testClass);
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switch(loaderType) {
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case "unregistered":
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loadAndUseWithUnregisteredLoader(urls, testClass);
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break;
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default:
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throw new IllegalArgumentException("loader type is wrong: " + loaderType);
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}
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}
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// Load the test classes using unregistered loader
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// (i.e. loader that is not using AppCDS API)
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private static void loadAndUseWithUnregisteredLoader(URL[] urls, String testClass)
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throws Exception {
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URLClassLoader urlClassLoader = new URLClassLoader(urls);
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callTestMethod(loadAndCheck(urlClassLoader, testClass));
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}
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private static Class loadAndCheck(ClassLoader loader, String className)
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throws ClassNotFoundException {
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Class c = loader.loadClass(className);
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log("class =" + c);
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log("loader = " + c.getClassLoader());
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// Check that c is defined by the correct loader
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if (c.getClassLoader() != loader) {
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String msg = String.format("c.getClassLoader() equals to <%s>, expected <%s>",
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c.getClassLoader(), loader);
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throw new RuntimeException(msg);
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}
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return c;
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}
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private static void callTestMethod(Class c) throws Exception {
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Method[] methods = c.getDeclaredMethods();
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for (Method m : methods) {
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log("method = " + m.getName());
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if (m.getName().equals("test"))
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m.invoke(null);
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}
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}
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}
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