| /* |
| * Copyright (c) 2003, 2015, 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. |
| */ |
| |
| /* |
| * @test |
| * @bug 4898478 |
| * @summary Tests client default class loader used before JSR 160 loader |
| * @author Eamonn McManus |
| * |
| * @library /lib/testlibrary |
| * |
| * @run clean MethodResultTest |
| * @run build MethodResultTest |
| * @run main MethodResultTest |
| */ |
| |
| import java.io.*; |
| import java.nio.file.Paths; |
| import java.net.*; |
| import java.util.*; |
| import javax.management.*; |
| import javax.management.remote.*; |
| import jdk.testlibrary.Utils; |
| |
| /* |
| This test checks that the class loader that is used to deserialize |
| the return values from remote MBean server operations is indeed the |
| one specified by the user. The only MBean server operations that |
| matter are those than can return an arbitrary Object. We don't |
| care about getMBeanCount or queryNames or whatever because their |
| return values are always of classes loaded by the bootstrap loader. |
| But for the operations getAttribute, getAttributes, setAttributes, |
| and invoke, the return value can include any Java class. This is |
| also true of getMBeanInfo, since the return value can be an exotic |
| subclass of MBeanInfo, or a ModelMBeanInfo that refers to an |
| arbitrary Object. The JMX Remote API spec requires that these |
| return values be deserialized using the class loader supplied by |
| the user (default is context class loader). In particular it must |
| not be deserialized using the system class loader, which it will be |
| with RMI unless special precautions are taken. |
| */ |
| public class MethodResultTest { |
| public static void main(String[] args) throws Exception { |
| Class<?> thisClass = MethodResultTest.class; |
| Class<?> exoticClass = Exotic.class; |
| String exoticClassName = Exotic.class.getName(); |
| |
| String[] cpaths = System.getProperty("test.classes", ".") |
| .split(File.pathSeparator); |
| URL[] urls = new URL[cpaths.length]; |
| for (int i=0; i < cpaths.length; i++) { |
| urls[i] = Paths.get(cpaths[i]).toUri().toURL(); |
| } |
| |
| ClassLoader shadowLoader = |
| new ShadowLoader(urls, thisClass.getClassLoader(), |
| new String[] {exoticClassName, |
| ExoticMBeanInfo.class.getName(), |
| ExoticException.class.getName()}); |
| Class<?> cl = shadowLoader.loadClass(exoticClassName); |
| if (cl == exoticClass) { |
| System.out.println("TEST INVALID: Shadow class loader loaded " + |
| "same class as test class loader"); |
| System.exit(1); |
| } |
| Thread.currentThread().setContextClassLoader(shadowLoader); |
| |
| ObjectName on = new ObjectName("a:b=c"); |
| MBeanServer mbs = MBeanServerFactory.newMBeanServer(); |
| mbs.createMBean(Thing.class.getName(), on); |
| |
| final String[] protos = {"rmi", "iiop", "jmxmp"}; |
| |
| boolean ok = true; |
| for (int i = 0; i < protos.length; i++) { |
| try { |
| ok &= test(protos[i], mbs, on); |
| System.out.println(); |
| } catch (Exception e) { |
| System.out.println("TEST FAILED WITH EXCEPTION:"); |
| e.printStackTrace(System.out); |
| ok = false; |
| } |
| } |
| |
| if (ok) |
| System.out.println("Test passed"); |
| else { |
| System.out.println("TEST FAILED"); |
| System.exit(1); |
| } |
| } |
| |
| private static boolean test(String proto, MBeanServer mbs, ObjectName on) |
| throws Exception { |
| System.out.println("Testing for protocol " + proto); |
| |
| JMXConnectorServer cs; |
| JMXServiceURL url = new JMXServiceURL(proto, null, 0); |
| try { |
| cs = JMXConnectorServerFactory.newJMXConnectorServer(url, null, |
| mbs); |
| } catch (MalformedURLException e) { |
| System.out.println("System does not recognize URL: " + url + |
| "; ignoring"); |
| return true; |
| } |
| cs.start(); |
| JMXServiceURL addr = cs.getAddress(); |
| JMXConnector client = connect(addr); |
| MBeanServerConnection mbsc = client.getMBeanServerConnection(); |
| Object getAttributeExotic = mbsc.getAttribute(on, "Exotic"); |
| AttributeList getAttrs = |
| mbsc.getAttributes(on, new String[] {"Exotic"}); |
| AttributeList setAttrs = new AttributeList(); |
| setAttrs.add(new Attribute("Exotic", new Exotic())); |
| setAttrs = mbsc.setAttributes(on, setAttrs); |
| Object invokeExotic = |
| mbsc.invoke(on, "anExotic", new Object[] {}, new String[] {}); |
| MBeanInfo exoticMBI = mbsc.getMBeanInfo(on); |
| |
| mbsc.setAttribute(on, new Attribute("Exception", Boolean.TRUE)); |
| Exception |
| getAttributeException, setAttributeException, invokeException; |
| try { |
| try { |
| mbsc.getAttribute(on, "Exotic"); |
| throw noException("getAttribute"); |
| } catch (Exception e) { |
| getAttributeException = e; |
| } |
| try { |
| mbsc.setAttribute(on, new Attribute("Exotic", new Exotic())); |
| throw noException("setAttribute"); |
| } catch (Exception e) { |
| setAttributeException = e; |
| } |
| try { |
| mbsc.invoke(on, "anExotic", new Object[] {}, new String[] {}); |
| throw noException("invoke"); |
| } catch (Exception e) { |
| invokeException = e; |
| } |
| } finally { |
| mbsc.setAttribute(on, new Attribute("Exception", Boolean.FALSE)); |
| } |
| client.close(); |
| cs.stop(); |
| |
| boolean ok = true; |
| |
| ok &= checkAttrs("getAttributes", getAttrs); |
| ok &= checkAttrs("setAttributes", setAttrs); |
| |
| ok &= checkType("getAttribute", getAttributeExotic, Exotic.class); |
| ok &= checkType("getAttributes", attrValue(getAttrs), Exotic.class); |
| ok &= checkType("setAttributes", attrValue(setAttrs), Exotic.class); |
| ok &= checkType("invoke", invokeExotic, Exotic.class); |
| ok &= checkType("getMBeanInfo", exoticMBI, ExoticMBeanInfo.class); |
| |
| ok &= checkExceptionType("getAttribute", getAttributeException, |
| ExoticException.class); |
| ok &= checkExceptionType("setAttribute", setAttributeException, |
| ExoticException.class); |
| ok &= checkExceptionType("invoke", invokeException, |
| ExoticException.class); |
| |
| if (ok) |
| System.out.println("Test passes for protocol " + proto); |
| return ok; |
| } |
| |
| private static JMXConnector connect(JMXServiceURL addr) { |
| final long timeout = Utils.adjustTimeout(100); |
| |
| JMXConnector connector = null; |
| while (connector == null) { |
| try { |
| connector = JMXConnectorFactory.connect(addr); |
| } catch (IOException e) { |
| System.out.println("Connection error. Retrying after delay..."); |
| delay(timeout); |
| } catch (Exception otherException) { |
| System.out.println("Unexpected exception while connecting " + otherException); |
| throw new RuntimeException(otherException); |
| } |
| } |
| return connector; |
| } |
| |
| private static void delay(long ms) { |
| try { |
| Thread.sleep(ms); |
| } catch (InterruptedException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| private static Exception noException(String what) { |
| final String msg = |
| "Operation " + what + " returned when exception expected"; |
| return new IllegalStateException(msg); |
| } |
| |
| private static Object attrValue(AttributeList attrs) { |
| return ((Attribute) attrs.get(0)).getValue(); |
| } |
| |
| private static boolean checkType(String what, Object object, |
| Class<?> wrongClass) { |
| return checkType(what, object, wrongClass, false); |
| } |
| |
| private static boolean checkType(String what, Object object, |
| Class<?> wrongClass, boolean isException) { |
| final String type = isException ? "exception" : "object"; |
| final String rendered = isException ? "thrown" : "returned"; |
| System.out.println("For " + type + " " + rendered + " by " + what + |
| ":"); |
| if (wrongClass.isInstance(object)) { |
| System.out.println("TEST FAILS: " + type + " loaded by test " + |
| "classloader"); |
| return false; |
| } |
| String className = object.getClass().getName(); |
| if (!className.equals(wrongClass.getName())) { |
| System.out.println("TEST FAILS: " + rendered + " " + type + |
| " has wrong class name: " + className); |
| return false; |
| } |
| System.out.println("Test passes: " + rendered + " " + type + |
| " has same class name but is not same class"); |
| return true; |
| } |
| |
| private static boolean checkExceptionType(String what, Exception exception, |
| Class<?> wrongClass) { |
| if (!(exception instanceof MBeanException)) { |
| System.out.println("Exception thrown by " + what + " is not an " + |
| MBeanException.class.getName() + |
| ":"); |
| exception.printStackTrace(System.out); |
| return false; |
| } |
| |
| exception = ((MBeanException) exception).getTargetException(); |
| |
| return checkType(what, exception, wrongClass, true); |
| } |
| |
| private static boolean checkAttrs(String what, AttributeList attrs) { |
| if (attrs.size() != 1) { |
| System.out.println("TEST FAILS: list returned by " + what + |
| " does not have size 1: " + attrs); |
| return false; |
| } |
| Attribute attr = (Attribute) attrs.get(0); |
| if (!"Exotic".equals(attr.getName())) { |
| System.out.println("TEST FAILS: " + what + " returned wrong " + |
| "attribute: " + attr); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| public static class Thing |
| extends StandardMBean implements ThingMBean { |
| public Thing() throws NotCompliantMBeanException { |
| super(ThingMBean.class); |
| } |
| |
| public Exotic getExotic() throws ExoticException { |
| if (exception) |
| throw new ExoticException(); |
| return new Exotic(); |
| } |
| |
| public void setExotic(Exotic x) throws ExoticException { |
| if (exception) |
| throw new ExoticException(); |
| } |
| |
| public Exotic anExotic() throws ExoticException { |
| if (exception) |
| throw new ExoticException(); |
| return new Exotic(); |
| } |
| |
| public void cacheMBeanInfo(MBeanInfo mbi) { |
| if (mbi != null) |
| mbi = new ExoticMBeanInfo(mbi); |
| super.cacheMBeanInfo(mbi); |
| } |
| |
| public void setException(boolean x) { |
| this.exception = x; |
| } |
| |
| private boolean exception; |
| } |
| |
| public static interface ThingMBean { |
| public Exotic getExotic() throws ExoticException; |
| public void setExotic(Exotic x) throws ExoticException; |
| public Exotic anExotic() throws ExoticException; |
| public void setException(boolean x); |
| } |
| |
| public static class Exotic implements Serializable {} |
| |
| public static class ExoticException extends Exception {} |
| |
| public static class ExoticMBeanInfo extends MBeanInfo { |
| public ExoticMBeanInfo(MBeanInfo mbi) { |
| super(mbi.getClassName(), |
| mbi.getDescription(), |
| mbi.getAttributes(), |
| mbi.getConstructors(), |
| mbi.getOperations(), |
| mbi.getNotifications()); |
| } |
| } |
| |
| private static class ShadowLoader extends URLClassLoader { |
| ShadowLoader(URL[] urls, ClassLoader realLoader, |
| String[] shadowClassNames) { |
| super(urls, null); |
| this.realLoader = realLoader; |
| this.shadowClassNames = Arrays.asList(shadowClassNames); |
| } |
| |
| protected Class<?> findClass(String name) throws ClassNotFoundException { |
| if (shadowClassNames.contains(name)) |
| return super.findClass(name); |
| else |
| return realLoader.loadClass(name); |
| } |
| |
| private final ClassLoader realLoader; |
| private final List shadowClassNames; |
| } |
| } |