| /* |
| * Copyright (c) 2004, 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 4969756 |
| * @summary Test that the same native library coming from the same jar file can |
| * be loaded twice by two different MLets on the same JVM without conflict. |
| * @author Luis-Miguel Alventosa |
| * |
| * @run clean LibraryLoaderTest |
| * @run build LibraryLoaderTest |
| * @run main/othervm LibraryLoaderTest |
| */ |
| |
| import java.io.File; |
| import java.util.Set; |
| import javax.management.Attribute; |
| import javax.management.MBeanServer; |
| import javax.management.MBeanServerFactory; |
| import javax.management.ObjectInstance; |
| import javax.management.ObjectName; |
| import javax.management.ReflectionException; |
| |
| public class LibraryLoaderTest { |
| |
| private static final String mletInfo[][] = { |
| {"testDomain:type=MLet,index=0", "UseNativeLib0.html"}, |
| {"testDomain:type=MLet,index=1", "UseNativeLib1.html"} |
| }; |
| |
| public static void main(String args[]) throws Exception { |
| |
| String osName = System.getProperty("os.name"); |
| System.out.println("os.name=" + osName); |
| String osArch = System.getProperty("os.arch"); |
| System.out.println("os.name=" + osArch); |
| |
| // Check for supported platforms: |
| // |
| // Solaris/SPARC and Windows/x86 |
| // |
| if ((!(osName.equals("SunOS") && osArch.equals("sparc"))) && |
| (!(osName.startsWith("Windows") && osArch.equals("x86")))) { |
| System.out.println( |
| "This test runs only on Solaris/SPARC and Windows/x86 platforms"); |
| System.out.println("Bye! Bye!"); |
| return; |
| } |
| |
| String libPath = System.getProperty("java.library.path"); |
| System.out.println("java.library.path=" + libPath); |
| String testSrc = System.getProperty("test.src"); |
| System.out.println("test.src=" + testSrc); |
| String workingDir = System.getProperty("user.dir"); |
| System.out.println("user.dir=" + workingDir); |
| |
| String urlCodebase; |
| if (testSrc.startsWith("/")) { |
| urlCodebase = |
| "file:" + testSrc.replace(File.separatorChar, '/') + "/"; |
| } else { |
| urlCodebase = |
| "file:/" + testSrc.replace(File.separatorChar, '/') + "/"; |
| } |
| |
| // Create MBeanServer |
| // |
| MBeanServer server = MBeanServerFactory.newMBeanServer(); |
| |
| // Create MLet instances and call getRandom on the loaded MBeans |
| // |
| for (int i = 0; i < mletInfo.length; i++) { |
| // Create ObjectName for MLet |
| // |
| ObjectName mlet = new ObjectName(mletInfo[i][0]); |
| server.createMBean("javax.management.loading.MLet", mlet); |
| System.out.println("MLet = " + mlet); |
| |
| // Display old library directory and set it to test.classes |
| // |
| String libraryDirectory = |
| (String) server.getAttribute(mlet, "LibraryDirectory"); |
| System.out.println("Old Library Directory = " + |
| libraryDirectory); |
| Attribute attribute = |
| new Attribute("LibraryDirectory", workingDir); |
| server.setAttribute(mlet, attribute); |
| libraryDirectory = |
| (String) server.getAttribute(mlet, "LibraryDirectory"); |
| System.out.println("New Library Directory = " + |
| libraryDirectory); |
| |
| // Get MBeans from URL |
| // |
| String mletURL = urlCodebase + mletInfo[i][1]; |
| System.out.println("MLet URL = " + mletURL); |
| Object[] params = new Object[] { mletURL }; |
| String[] signature = new String[] {"java.lang.String"}; |
| Object res[] = ((Set<?>) server.invoke(mlet, |
| "getMBeansFromURL", |
| params, |
| signature)).toArray(); |
| |
| // Iterate through all the loaded MBeans |
| // |
| for (int j = 0; j < res.length; j++) { |
| // Now ensure none of the returned objects is a Throwable |
| // |
| if (res[j] instanceof Throwable) { |
| ((Throwable) res[j]).printStackTrace(System.out); |
| throw new Exception("Failed to load the MBean #" + j |
| ,(Throwable)res[j]); |
| } |
| |
| // On each of the loaded MBeans, try to invoke their |
| // native operation |
| // |
| Object result = null; |
| try { |
| ObjectName mbean = |
| ((ObjectInstance) res[j]).getObjectName(); |
| result = server.getAttribute(mbean, "Random"); |
| System.out.println("MBean #" + j + " = " + mbean); |
| System.out.println("Random number = " + result); |
| } catch (ReflectionException e) { |
| e.getTargetException().printStackTrace(System.out); |
| throw new Exception ("A ReflectionException " |
| + "occured when attempting to invoke " |
| + "a native library based operation.", |
| e.getTargetException()); |
| } |
| } |
| } |
| } |
| } |