| /* |
| * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * |
| * |
| * Basic unit test for Instrumentation appendToBootstrapClassLoaderSearch and |
| * appendToSystemClassLoaderSearch methods: |
| * |
| * 1. Adds a jar file to the bootstrap class loader search; Loads a class known |
| * to be in the jar file and checks that it was loaded by the bootstrap class |
| * loader. |
| * |
| * 2. Adds a jar file to the system class loader search; Loads a class known |
| * to be in the jar file and checks that it was indeed loaded by the system |
| * class loader. |
| */ |
| import java.lang.instrument.Instrumentation; |
| import java.util.jar.JarFile; |
| import java.io.IOException; |
| |
| public class BasicTest { |
| |
| // count of failures |
| static int failures = 0; |
| |
| // check that the given class is loaded by the given loader |
| static void checkLoadedByLoader(String name, ClassLoader loader) { |
| try { |
| Class cl = Class.forName(name); |
| ClassLoader actual = cl.getClassLoader(); |
| String loaderName = (actual == null) ? "boot class loader" : actual.toString(); |
| if (actual != loader) { |
| System.out.println("FAIL: " + name + " incorrectly loaded by: " + loaderName); |
| failures++; |
| } else { |
| System.out.println("PASS: " + name + " loaded by: " + loaderName); |
| } |
| } catch (Exception x) { |
| System.out.println("FAIL: Unable to load " + name + ":" + x); |
| failures++; |
| } |
| } |
| |
| public static void main(String args[]) throws IOException { |
| JarFile bootclasses = new JarFile("BootSupport.jar"); |
| JarFile agentclasses = new JarFile("AgentSupport.jar"); |
| |
| Instrumentation ins = Agent.getInstrumentation(); |
| |
| // Test 1: Add BootSupport.jar to boot class path and check that |
| // BootSupport is loaded by the bootstrap class loader |
| ins.appendToBootstrapClassLoaderSearch(bootclasses); |
| checkLoadedByLoader("BootSupport", null); |
| |
| // Test 2: Add AgentSupport.jar to the system class path and check that |
| // AgentSupport is loaded by the system class loader. |
| try { |
| ins.appendToSystemClassLoaderSearch(agentclasses); |
| checkLoadedByLoader("AgentSupport", ClassLoader.getSystemClassLoader()); |
| } catch (UnsupportedOperationException x) { |
| System.out.println("System class loader does not support adding to class path"); |
| } |
| |
| // throw exception if a test failed |
| if (failures > 0) { |
| throw new RuntimeException(failures + " test(s) failed."); |
| } |
| } |
| } |