public static void main(String[] args) throws Exception {
System.setSecurityManager(new SecurityManager());
// Create an uninitialized class loader
try {
new ClassLoader(null) {
@Override
protected void finalize() {
loader = this;
}
};
} catch (SecurityException exc) {
// Expected
}
System.gc();
System.runFinalization();
// if 'loader' isn't null, need to ensure that it can't be used as
// parent
if (loader != null) {
try {
// Create a class loader with 'loader' being the parent
URLClassLoader child = URLClassLoader.newInstance(new URL[0], loader);
throw new RuntimeException("Test Failed!");
} catch (SecurityException se) {
System.out.println("Test Passed: Exception thrown");
}
} else {
System.out.println("Test Passed: Loader is null");
}
}
public NationClassLoader(URL[] urls, Vector nations) {
super(urls);
for (int i = 0; i < urls.length; i++) {
file = urls[i].getFile();
fileTmp = new File(file);
System.out.println(
"NationClassLoader - Does " + fileTmp.toString() + " exists : " + fileTmp.exists());
name = file.substring(file.lastIndexOf("/") + 1, file.lastIndexOf("."));
runtimeObject = null;
try {
jarLoader = URLClassLoader.newInstance(new URL[] {urls[i]});
System.out.println(
"NationClassLoader - JARloader trying : " + jarLoader.getURLs()[0].toString());
runtimeObject = jarLoader.loadClass(name + "/" + name).newInstance();
} catch (Exception e) {
System.err.println("NationClassLoader - Stinking error : " + e);
}
if (runtimeObject != null) {
natFile = (nationFile2) runtimeObject;
nations.addElement(natFile);
}
}
}
public static void main(String[] args) throws Exception {
Class thisClass = MethodResultTest.class;
Class exoticClass = Exotic.class;
String exoticClassName = Exotic.class.getName();
ClassLoader testClassLoader = thisClass.getClassLoader();
if (!(testClassLoader instanceof URLClassLoader)) {
System.out.println("TEST INVALID: Not loaded by a " + "URLClassLoader: " + testClassLoader);
System.exit(1);
}
URLClassLoader tcl = (URLClassLoader) testClassLoader;
URL[] urls = tcl.getURLs();
ClassLoader shadowLoader =
new ShadowLoader(
urls,
testClassLoader,
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);
}
}
public static void main(String[] args) throws Exception {
System.out.println(
"Test that target MBean class loader is used " + "before JMX Remote API class loader");
ClassLoader jmxRemoteClassLoader = JMXServiceURL.class.getClassLoader();
if (jmxRemoteClassLoader == null) {
System.out.println(
"JMX Remote API loaded by bootstrap " + "class loader, this test is irrelevant");
return;
}
if (!(jmxRemoteClassLoader instanceof URLClassLoader)) {
System.out.println("TEST INVALID: JMX Remote API not loaded by " + "URLClassLoader");
System.exit(1);
}
URLClassLoader jrcl = (URLClassLoader) jmxRemoteClassLoader;
URL[] urls = jrcl.getURLs();
PrivateMLet mlet = new PrivateMLet(urls, null, false);
Class shadowClass = mlet.loadClass(JMXServiceURL.class.getName());
if (shadowClass == JMXServiceURL.class) {
System.out.println("TEST INVALID: MLet got original " + "JMXServiceURL not shadow");
System.exit(1);
}
MBeanServer mbs = MBeanServerFactory.newMBeanServer();
mbs.registerMBean(mlet, mletName);
final String[] protos = {"rmi", "iiop", "jmxmp"};
boolean ok = true;
for (int i = 0; i < protos.length; i++) {
try {
ok &= test(protos[i], mbs);
} 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);
}
}
/**
* Method to create concrete instances of this abstract class. Instances are dynamically loaded.
* Instances's names are obtained by concatenating a prefix, either "Light", "Regular", or
* "Gourmet", with the suffix "PizzaFactory".
*
* @param style An integer representing the style of pizzas to create, e.g., 0 stands for
* "Light". @ @return a concrete pizza factory
*/
static AbstractPizzaFactory getFactory(int style)
throws ClassNotFoundException, InstantiationException, IllegalAccessException,
IllegalArgumentException, MalformedURLException {
if (0 <= style && style <= prefix.length - 1) {
// Alternative #1 - load from current directory
// AbstractPizzaFactory apf =
// (AbstractPizzaFactory) Class.forName
// (prefix [style] + suffix).newInstance ();
// Alternative 2 - load from URL (including JAR file)
// It looks like only the protocol "file:" is
// required to load files from the execution directory
URL[] classPath = {new URL("file:")};
URLClassLoader classLoader = new URLClassLoader(classPath);
String name = prefix[style] + suffix;
Class someClass = classLoader.loadClass(name);
AbstractPizzaFactory apf = (AbstractPizzaFactory) someClass.newInstance();
// end of alternatives
return apf;
} else throw new IllegalArgumentException();
}
/**
* adds a URL to the classloader.
*
* @param url the new classpath element
*/
public void addURL(URL url) {
super.addURL(url);
}
private static LaunchablePlugin[] findLaunchablePlugins(LoggerChannelListener listener) {
// CAREFUL - this is called BEFORE any AZ initialisation has been performed and must
// therefore NOT use anything that relies on this (such as logging, debug....)
List res = new ArrayList();
File app_dir = getApplicationFile("plugins");
if (!(app_dir.exists()) && app_dir.isDirectory()) {
listener.messageLogged(LoggerChannel.LT_ERROR, "Application dir '" + app_dir + "' not found");
return (new LaunchablePlugin[0]);
}
File[] plugins = app_dir.listFiles();
if (plugins == null || plugins.length == 0) {
listener.messageLogged(LoggerChannel.LT_ERROR, "Application dir '" + app_dir + "' empty");
return (new LaunchablePlugin[0]);
}
for (int i = 0; i < plugins.length; i++) {
File plugin_dir = plugins[i];
if (!plugin_dir.isDirectory()) {
continue;
}
try {
ClassLoader classLoader = PluginLauncherImpl.class.getClassLoader();
ClassLoader root_cl = classLoader;
File[] contents = plugin_dir.listFiles();
if (contents == null || contents.length == 0) {
continue;
}
// take only the highest version numbers of jars that look versioned
String[] plugin_version = {null};
String[] plugin_id = {null};
contents = getHighestJarVersions(contents, plugin_version, plugin_id, true);
for (int j = 0; j < contents.length; j++) {
classLoader = addFileToClassPath(root_cl, classLoader, contents[j]);
}
Properties props = new Properties();
File properties_file = new File(plugin_dir, "plugin.properties");
// if properties file exists on its own then override any properties file
// potentially held within a jar
if (properties_file.exists()) {
FileInputStream fis = null;
try {
fis = new FileInputStream(properties_file);
props.load(fis);
} finally {
if (fis != null) {
fis.close();
}
}
} else {
if (classLoader instanceof URLClassLoader) {
URLClassLoader current = (URLClassLoader) classLoader;
URL url = current.findResource("plugin.properties");
if (url != null) {
props.load(url.openStream());
}
}
}
String plugin_class = (String) props.get("plugin.class");
// don't support multiple launchable plugins
if (plugin_class == null || plugin_class.indexOf(';') != -1) {
continue;
}
Class c = classLoader.loadClass(plugin_class);
Plugin plugin = (Plugin) c.newInstance();
if (plugin instanceof LaunchablePlugin) {
preloaded_plugins.put(plugin_class, plugin);
res.add(plugin);
}
} catch (Throwable e) {
listener.messageLogged("Load of plugin in '" + plugin_dir + "' fails", e);
}
}
LaunchablePlugin[] x = new LaunchablePlugin[res.size()];
res.toArray(x);
return (x);
}
