255 lines
9.4 KiB
Java
255 lines
9.4 KiB
Java
/*
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* Copyright (c) 2006, 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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* @test
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* @bug 5021246
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* @summary Check that class downloading is supported by RMI connector
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* @author Eamonn McManus
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* @run main RMIDownloadTest receive without
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* @run main RMIDownloadTest send without
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* @run main RMIDownloadTest receive with
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* @run main RMIDownloadTest send with
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*/
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/*
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* This test checks that class downloading is supported by the RMI connector.
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* We copy a precompiled class file into the temporary directory (which we
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* assume is not in the classpath). We also create an instance of that
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* class using a hardcoded ClassLoader. Then we try to get a remote attribute
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* that returns that instance, and we try to set the remote attribute to the
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* instance. In both cases, this will only work if the class can be downloaded
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* based on the codebase that we have set to the temporary directory. We also
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* test that it does *not* work when the codebase is not set, in case the test
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* is succeeding for some other reason.
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*
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* We run the test four times, for each combination of (send, receive) x
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* (with-codebase, without-codebase). Doing all four tests within the same
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* run doesn't work, probably because RMI remembers the codebase property
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* setting at some point.
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*/
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.OutputStream;
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import java.lang.management.ManagementFactory;
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import java.net.URL;
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import java.security.Permission;
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import java.util.Arrays;
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import javax.management.Attribute;
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import javax.management.MBeanServer;
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import javax.management.MBeanServerConnection;
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import javax.management.ObjectName;
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import javax.management.remote.JMXConnector;
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import javax.management.remote.JMXConnectorFactory;
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import javax.management.remote.JMXConnectorServer;
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import javax.management.remote.JMXConnectorServerFactory;
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import javax.management.remote.JMXServiceURL;
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public class RMIDownloadTest {
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/* Following byte array was produced from this class:
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*
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* public class Zooby implements java.io.Serializable {}
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*
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* by this program:
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*
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* public class MakeZooby {
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* public static void main(String[] args) throws Exception {
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* int b;
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* for (int offset = 0; (b = System.in.read()) >= 0; offset++) {
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* System.out.print((byte) b + "," +
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* ((offset % 16) == 15 ? '\n' : ' '));
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* }
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* System.out.println();
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* }
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* }
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*/
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private static final byte[] zoobyClassBytes = {
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-54, -2, -70, -66, 0, 0, 0, 49, 0, 12, 10, 0, 3, 0, 8, 7,
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0, 9, 7, 0, 10, 7, 0, 11, 1, 0, 6, 60, 105, 110, 105, 116,
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62, 1, 0, 3, 40, 41, 86, 1, 0, 4, 67, 111, 100, 101, 12, 0,
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5, 0, 6, 1, 0, 5, 90, 111, 111, 98, 121, 1, 0, 16, 106, 97,
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118, 97, 47, 108, 97, 110, 103, 47, 79, 98, 106, 101, 99, 116, 1, 0,
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20, 106, 97, 118, 97, 47, 105, 111, 47, 83, 101, 114, 105, 97, 108, 105,
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122, 97, 98, 108, 101, 0, 33, 0, 2, 0, 3, 0, 1, 0, 4, 0,
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0, 0, 1, 0, 1, 0, 5, 0, 6, 0, 1, 0, 7, 0, 0, 0,
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17, 0, 1, 0, 1, 0, 0, 0, 5, 42, -73, 0, 1, -79, 0, 0,
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0, 0, 0, 0,
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};
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private static class ZoobyClassLoader extends ClassLoader {
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protected Class<?> findClass(String name) throws ClassNotFoundException {
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if (name.equals("Zooby")) {
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return super.defineClass(name, zoobyClassBytes,
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0, zoobyClassBytes.length);
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} else
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throw new ClassNotFoundException(name);
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}
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}
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private static MBeanServer pmbs;
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private static ObjectName getSetName;
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private static GetSet getSetInstance;
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public static void main(String[] args) throws Exception {
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int sendIndex = -1;
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int withIndex = -1;
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if (args.length == 2) {
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sendIndex =
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Arrays.asList("send", "receive").indexOf(args[0]);
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withIndex =
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Arrays.asList("with", "without").indexOf(args[1]);
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}
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if (sendIndex < 0 || withIndex < 0)
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throw new Exception("Usage: RMIDownloadTest (send|receive) (with|without)");
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final boolean send = (sendIndex == 0);
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final boolean with = (withIndex == 0);
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pmbs = ManagementFactory.getPlatformMBeanServer();
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getSetName = new ObjectName(":type=GetSet");
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getSetInstance = new GetSet();
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pmbs.registerMBean(getSetInstance, getSetName);
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System.setSecurityManager(new LaidBackSecurityManager());
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// System.setProperty("sun.rmi.loader.logLevel", "VERBOSE");
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String tmpdir = System.getProperty("java.io.tmpdir");
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String classfile = tmpdir + File.separator + "Zooby.class";
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File zoobyFile = new File(classfile);
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zoobyFile.deleteOnExit();
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OutputStream os = new FileOutputStream(zoobyFile);
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for (byte b : zoobyClassBytes)
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os.write(b);
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os.close();
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// Check that we can't load the Zooby class from the classpath
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try {
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Class.forName("Zooby");
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throw new Exception("Class \"Zooby\" is in the classpath!");
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} catch (ClassNotFoundException e) {
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// OK: expected
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}
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if (send)
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System.out.println("Testing we can send an object from client to server");
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else
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System.out.println("Testing we can receive an object from server to client");
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if (with) {
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// Test with the codebase property. Downloading should work.
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URL zoobyURL = zoobyFile.getParentFile().toURI().toURL();
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System.setProperty("java.rmi.server.codebase", zoobyURL.toString());
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System.out.println("Testing with codebase, should work");
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System.out.println("Codebase is " +
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System.getProperty("java.rmi.server.codebase"));
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test(send, true);
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} else {
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// Test without setting the codebase property.
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// This should not work; if it does it probably means java.io.tmpdir
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// is in the classpath.
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System.out.println("Testing without codebase, should fail");
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test(send, false);
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}
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}
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private static void test(boolean send, boolean shouldWork) throws Exception {
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try {
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testWithException(send);
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} catch (Exception e) {
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if (shouldWork)
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throw e;
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System.out.println("Got exception as expected: " + e);
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return;
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}
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if (!shouldWork)
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throw new Exception("Test passed without codebase but should not");
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}
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private static void testWithException(boolean send)
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throws Exception {
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ClassLoader zoobyCL = new ZoobyClassLoader();
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Class<?> zoobyClass = Class.forName("Zooby", false, zoobyCL);
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Object zooby = zoobyClass.newInstance();
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JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///");
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JMXConnectorServer cs =
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JMXConnectorServerFactory.newJMXConnectorServer(url, null, pmbs);
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cs.start();
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JMXServiceURL addr = cs.getAddress();
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JMXConnector cc = JMXConnectorFactory.connect(addr);
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MBeanServerConnection mbsc = cc.getMBeanServerConnection();
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Object rzooby;
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if (send) {
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System.out.println("Sending object...");
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mbsc.setAttribute(getSetName, new Attribute("It", zooby));
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rzooby = getSetInstance.getIt();
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} else {
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System.out.println("Receiving object...");
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getSetInstance.setIt(zooby);
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rzooby = mbsc.getAttribute(getSetName, "It");
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}
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if (!rzooby.getClass().getName().equals("Zooby")) {
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throw new Exception("FAILED: remote object is not a Zooby");
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}
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if (rzooby.getClass().getClassLoader() ==
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zooby.getClass().getClassLoader()) {
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throw new Exception("FAILED: same class loader: " +
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zooby.getClass().getClassLoader());
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}
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cc.close();
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cs.stop();
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}
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public static interface GetSetMBean {
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public Object getIt();
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public void setIt(Object x);
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}
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public static class GetSet implements GetSetMBean {
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public GetSet() {
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}
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public Object getIt() {
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return what;
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}
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public void setIt(Object x) {
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this.what = x;
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}
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private Object what;
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}
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public static class LaidBackSecurityManager extends SecurityManager {
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public void checkPermission(Permission perm) {
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// OK, dude
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}
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}
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}
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