List of usage examples for java.lang Class getDeclaredMethod
@CallerSensitive public Method getDeclaredMethod(String name, Class<?>... parameterTypes) throws NoSuchMethodException, SecurityException
From source file:net.pandoragames.far.ui.swing.component.MacOSXMenuAdapter.java
/** * Instantiates the <code>Application</code> class and initialises <i>this</i> * as a Proxy for interface <code>ApplicationListener</code>. Wires the two together. */// w ww .jav a2 s .c om public MacOSXMenuAdapter() { // 1. get an instance of apples Application class Class applicationClass = null; try { applicationClass = Class.forName(CL_OSX_APP); macOSXApplication = applicationClass.newInstance(); } catch (Exception x) { String message = x.getClass().getName() + " instantiating " + CL_OSX_APP + ": " + x.getMessage(); logger.error(message); throw new IllegalStateException(message); } // 2. Make THIS a Proxy for an ApplicationListener instance try { Class applicationListenerClass = Class.forName(CL_OSX_APP_LSTR); applicationListenerProxy = Proxy.newProxyInstance(MacOSXMenuAdapter.class.getClassLoader(), new Class[] { applicationListenerClass }, this); Method addListenerMethod = applicationClass.getDeclaredMethod("addApplicationListener", new Class[] { applicationListenerClass }); addListenerMethod.invoke(macOSXApplication, new Object[] { applicationListenerProxy }); } catch (Exception x) { String message = x.getClass().getName() + " instantiating " + CL_OSX_APP_LSTR + ": " + x.getMessage(); logger.error(message); throw new IllegalStateException(message); } }
From source file:com.google.gwt.dev.shell.jetty.JettyLauncher.java
/** * This is a modified version of JreMemoryLeakPreventionListener.java found * in the Apache Tomcat project at//from w w w . j a va2s . co m * * http://svn.apache.org/repos/asf/tomcat/trunk/java/org/apache/catalina/core/ * JreMemoryLeakPreventionListener.java * * Relevant part of the Tomcat NOTICE, retrieved from * http://svn.apache.org/repos/asf/tomcat/trunk/NOTICE Apache Tomcat Copyright * 1999-2010 The Apache Software Foundation * * This product includes software developed by The Apache Software Foundation * (http://www.apache.org/). */ private void jreLeakPrevention(TreeLogger logger) { // Trigger a call to sun.awt.AppContext.getAppContext(). This will // pin the common class loader in memory but that shouldn't be an // issue. ImageIO.getCacheDirectory(); /* * Several components end up calling: sun.misc.GC.requestLatency(long) * * Those libraries / components known to trigger memory leaks due to * eventual calls to requestLatency(long) are: - * javax.management.remote.rmi.RMIConnectorServer.start() */ try { Class<?> clazz = Class.forName("sun.misc.GC"); Method method = clazz.getDeclaredMethod("requestLatency", new Class[] { long.class }); method.invoke(null, Long.valueOf(3600000)); } catch (ClassNotFoundException e) { logger.log(TreeLogger.ERROR, "jreLeakPrevention.gcDaemonFail", e); } catch (SecurityException e) { logger.log(TreeLogger.ERROR, "jreLeakPrevention.gcDaemonFail", e); } catch (NoSuchMethodException e) { logger.log(TreeLogger.ERROR, "jreLeakPrevention.gcDaemonFail", e); } catch (IllegalArgumentException e) { logger.log(TreeLogger.ERROR, "jreLeakPrevention.gcDaemonFail", e); } catch (IllegalAccessException e) { logger.log(TreeLogger.ERROR, "jreLeakPrevention.gcDaemonFail", e); } catch (InvocationTargetException e) { logger.log(TreeLogger.ERROR, "jreLeakPrevention.gcDaemonFail", e); } /* * Calling getPolicy retains a static reference to the context class loader. */ try { // Policy.getPolicy(); Class<?> policyClass = Class.forName("javax.security.auth.Policy"); Method method = policyClass.getMethod("getPolicy"); method.invoke(null); } catch (ClassNotFoundException e) { // Ignore. The class is deprecated. } catch (SecurityException e) { // Ignore. Don't need call to getPolicy() to be successful, // just need to trigger static initializer. } catch (NoSuchMethodException e) { logger.log(TreeLogger.WARN, "jreLeakPrevention.authPolicyFail", e); } catch (IllegalArgumentException e) { logger.log(TreeLogger.WARN, "jreLeakPrevention.authPolicyFail", e); } catch (IllegalAccessException e) { logger.log(TreeLogger.WARN, "jreLeakPrevention.authPolicyFail", e); } catch (InvocationTargetException e) { logger.log(TreeLogger.WARN, "jreLeakPrevention.authPolicyFail", e); } /* * Creating a MessageDigest during web application startup initializes the * Java Cryptography Architecture. Under certain conditions this starts a * Token poller thread with TCCL equal to the web application class loader. * * Instead we initialize JCA right now. */ java.security.Security.getProviders(); /* * Several components end up opening JarURLConnections without first * disabling caching. This effectively locks the file. Whilst more * noticeable and harder to ignore on Windows, it affects all operating * systems. * * Those libraries/components known to trigger this issue include: - log4j * versions 1.2.15 and earlier - javax.xml.bind.JAXBContext.newInstance() */ // Set the default URL caching policy to not to cache try { // Doesn't matter that this JAR doesn't exist - just as long as // the URL is well-formed URL url = new URL("jar:file://dummy.jar!/"); URLConnection uConn = url.openConnection(); uConn.setDefaultUseCaches(false); } catch (MalformedURLException e) { logger.log(TreeLogger.ERROR, "jreLeakPrevention.jarUrlConnCacheFail", e); } catch (IOException e) { logger.log(TreeLogger.ERROR, "jreLeakPrevention.jarUrlConnCacheFail", e); } /* * Haven't got to the root of what is going on with this leak but if a web * app is the first to make the calls below the web application class loader * will be pinned in memory. */ DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); try { factory.newDocumentBuilder(); } catch (ParserConfigurationException e) { logger.log(TreeLogger.ERROR, "jreLeakPrevention.xmlParseFail", e); } }
From source file:de.static_interface.sinklibrary.SinkLibrary.java
public void addJarToClasspath(URL url) throws Exception { URLClassLoader classLoader = (URLClassLoader) getClassLoader(); Class<URLClassLoader> clazz = URLClassLoader.class; // Use reflection to access protected "addURL" method Method method = clazz.getDeclaredMethod("addURL", new Class[] { URL.class }); method.setAccessible(true);/* w w w . ja va2 s .c om*/ method.invoke(classLoader, url); }
From source file:eu.carrade.amaury.BallsOfSteel.BoSCommand.java
/** * Handles a command.// w ww . j a va2 s. c o m * * @param sender The sender * @param command The executed command * @param label The alias used for this command * @param args The arguments given to the command * * @author Amaury Carrade */ @SuppressWarnings("rawtypes") @Override public boolean onCommand(CommandSender sender, Command command, String label, String[] args) { boolean ourCommand = false; for (String commandName : p.getDescription().getCommands().keySet()) { if (commandName.equalsIgnoreCase(command.getName())) { ourCommand = true; break; } } if (!ourCommand) { return false; } /** Team chat commands **/ if (command.getName().equalsIgnoreCase("t")) { doTeamMessage(sender, command, label, args); return true; } if (command.getName().equalsIgnoreCase("g")) { doGlobalMessage(sender, command, label, args); return true; } if (command.getName().equalsIgnoreCase("togglechat")) { doToggleTeamChat(sender, command, label, args); return true; } if (args.length == 0) { help(sender, args, false); return true; } String subcommandName = args[0].toLowerCase(); // First: subcommand existence. if (!this.commands.contains(subcommandName)) { try { Integer.valueOf(subcommandName); help(sender, args, false); } catch (NumberFormatException e) { // If the subcommand isn't a number, it's an error. help(sender, args, true); } return true; } // Second: is the sender allowed? if (!isAllowed(sender, subcommandName)) { unauthorized(sender, command); return true; } // Third: instantiation try { Class<? extends BoSCommand> cl = this.getClass(); Class[] parametersTypes = new Class[] { CommandSender.class, Command.class, String.class, String[].class }; Method doMethod = cl.getDeclaredMethod("do" + WordUtils.capitalize(subcommandName), parametersTypes); doMethod.invoke(this, new Object[] { sender, command, label, args }); return true; } catch (NoSuchMethodException e) { // Unknown method => unknown subcommand. help(sender, args, true); return true; } catch (SecurityException | IllegalAccessException | IllegalArgumentException | InvocationTargetException e) { sender.sendMessage(i.t("cmd.errorLoad")); e.printStackTrace(); return false; } }
From source file:org.apache.axis.wsdl.fromJava.Types.java
/** * Returns true if indicated type matches the JAX-RPC enumeration class. * Note: supports JSR 101 version 0.6 Public Draft * * @param cls//from ww w . j a va 2s . c om * @return */ public static boolean isEnumClass(Class cls) { try { java.lang.reflect.Method m = cls.getMethod("getValue", null); java.lang.reflect.Method m2 = cls.getMethod("toString", null); if ((m != null) && (m2 != null)) { java.lang.reflect.Method m3 = cls.getDeclaredMethod("fromString", new Class[] { java.lang.String.class }); java.lang.reflect.Method m4 = cls.getDeclaredMethod("fromValue", new Class[] { m.getReturnType() }); if ((m3 != null) && Modifier.isStatic(m3.getModifiers()) && Modifier.isPublic(m3.getModifiers()) && (m4 != null) && Modifier.isStatic(m4.getModifiers()) && Modifier.isPublic(m4.getModifiers())) { // Return false if there is a setValue member method try { if (cls.getMethod("setValue", new Class[] { m.getReturnType() }) == null) { return true; } return false; } catch (java.lang.NoSuchMethodException e) { return true; } } } } catch (java.lang.NoSuchMethodException e) { } return false; }
From source file:org.apache.hadoop.hbase.regionserver.wal.FSHLog.java
/** * Find the 'getNumCurrentReplicas' on the passed <code>os</code> stream. * @return Method or null./*from ww w. j a v a2 s.c o m*/ */ private static Method getGetNumCurrentReplicas(final FSDataOutputStream os) { // TODO: Remove all this and use the now publically available // HdfsDataOutputStream#getCurrentBlockReplication() Method m = null; if (os != null) { Class<? extends OutputStream> wrappedStreamClass = os.getWrappedStream().getClass(); try { m = wrappedStreamClass.getDeclaredMethod("getNumCurrentReplicas", new Class<?>[] {}); m.setAccessible(true); } catch (NoSuchMethodException e) { LOG.info("FileSystem's output stream doesn't support getNumCurrentReplicas; " + "HDFS-826 not available; fsOut=" + wrappedStreamClass.getName()); } catch (SecurityException e) { LOG.info("No access to getNumCurrentReplicas on FileSystems's output stream; HDFS-826 " + "not available; fsOut=" + wrappedStreamClass.getName(), e); m = null; // could happen on setAccessible() } } if (m != null) { if (LOG.isTraceEnabled()) LOG.trace("Using getNumCurrentReplicas"); } return m; }
From source file:com.madrobot.di.wizard.json.JSONDeserializer.java
/** * Deserialize a specific element, recursively. * // w ww . j a v a 2s . c o m * @param obj * Object whose fields need to be set * @param jsonObject * JSON Parser to read data from * @param stack * Stack of {@link ClassInfo} - entity type under consideration * @throws JSONException * If an exception occurs during parsing */ private void deserialize(Object obj, JSONObject jsonObject, Stack<Class<?>> stack) throws JSONException { Iterator<?> iterator = jsonObject.keys(); Class<?> userClass = stack.peek(); while (iterator.hasNext()) { Object jsonKey = iterator.next(); if (jsonKey instanceof String) { String key = (String) jsonKey; Object jsonElement = jsonObject.get(key); try { Field field = getField(userClass, key); String fieldName = field.getName(); Class<?> classType = field.getType(); if (jsonElement instanceof JSONObject) { if (!Converter.isPseudoPrimitive(classType)) { String setMethodName = getSetMethodName(fieldName, classType); Method setMethod = userClass.getDeclaredMethod(setMethodName, classType); JSONObject fieldObject = (JSONObject) jsonElement; stack.push(classType); Object itemObj = classType.newInstance(); deserialize(itemObj, fieldObject, stack); setMethod.invoke(obj, itemObj); } else { Log.e(TAG, "Expecting composite type for " + fieldName); } } else if (jsonElement instanceof JSONArray) { if (Converter.isCollectionType(classType)) { if (field.isAnnotationPresent(ItemType.class)) { ItemType itemType = field.getAnnotation(ItemType.class); Class<?> itemValueType = itemType.value(); int size = itemType.size(); JSONArray fieldArrayObject = (JSONArray) jsonElement; if (size == JSONDeserializer.DEFAULT_ITEM_COLLECTION_SIZE || size > fieldArrayObject.length()) { size = fieldArrayObject.length(); } for (int index = 0; index < size; index++) { Object value = fieldArrayObject.get(index); if (value instanceof JSONObject) { stack.push(itemValueType); Object itemObj = itemValueType.newInstance(); deserialize(itemObj, (JSONObject) value, stack); String addMethodName = getAddMethodName(fieldName); Method addMethod = userClass.getDeclaredMethod(addMethodName, itemValueType); addMethod.invoke(obj, itemObj); } } } } else { Log.e(TAG, "Expecting collection type for " + fieldName); } } else if (Converter.isPseudoPrimitive(classType)) { Object value = Converter.convertTo(jsonObject, key, classType, field); String setMethodName = getSetMethodName(fieldName, classType); Method setMethod = userClass.getDeclaredMethod(setMethodName, classType); setMethod.invoke(obj, value); } else { Log.e(TAG, "Unknown datatype"); } } catch (NoSuchFieldException e) { Log.e(TAG, e.getMessage()); } catch (NoSuchMethodException e) { Log.e(TAG, e.getMessage()); } catch (IllegalAccessException e) { Log.e(TAG, e.getMessage()); } catch (InvocationTargetException e) { Log.e(TAG, e.getMessage()); } catch (InstantiationException e) { Log.e(TAG, e.getMessage()); } } } }
From source file:org.pmp.budgeto.app.SwaggerDispatcherConfigTest.java
@Test public void springConf() throws Exception { Class<?> clazz = swaggerDispatcherConfig.getClass(); Assertions.assertThat(clazz.getAnnotations()).hasSize(4); Assertions.assertThat(clazz.isAnnotationPresent(Configuration.class)).isTrue(); Assertions.assertThat(clazz.isAnnotationPresent(EnableWebMvc.class)).isTrue(); Assertions.assertThat(clazz.isAnnotationPresent(EnableSwagger.class)).isTrue(); Assertions.assertThat(clazz.isAnnotationPresent(ComponentScan.class)).isTrue(); Assertions.assertThat(clazz.getAnnotation(ComponentScan.class).basePackages()) .containsExactly("com.ak.swaggerspringmvc.shared.app", "com.ak.spring3.music"); Field fSpringSwaggerConfig = clazz.getDeclaredField("springSwaggerConfig"); Assertions.assertThat(fSpringSwaggerConfig.getAnnotations()).hasSize(1); Assertions.assertThat(fSpringSwaggerConfig.isAnnotationPresent(Autowired.class)).isTrue(); Method mCustomImplementation = clazz.getDeclaredMethod("customImplementation", new Class[] {}); Assertions.assertThat(mCustomImplementation.getAnnotations()).hasSize(1); Assertions.assertThat(mCustomImplementation.getAnnotation(Bean.class)).isNotNull(); }
From source file:gov.nih.nci.system.web.struts.action.CreateAction.java
private void setParameterValue(Class klass, Object instance, String name, String value) throws NumberFormatException, Exception { if (value != null && value.trim().length() == 0) value = null;/*from w w w . j a v a 2 s .c o m*/ try { String paramName = name.substring(0, 1).toUpperCase() + name.substring(1); Method[] allMethods = klass.getMethods(); for (Method m : allMethods) { String mname = m.getName(); if (mname.equals("get" + paramName)) { Class type = m.getReturnType(); Class[] argTypes = new Class[] { type }; Method method = null; while (klass != Object.class) { try { Method setMethod = klass.getDeclaredMethod("set" + paramName, argTypes); setMethod.setAccessible(true); Object converted = convertValue(type, value); if (converted != null) setMethod.invoke(instance, converted); break; } catch (NumberFormatException e) { throw e; } catch (NoSuchMethodException ex) { klass = klass.getSuperclass(); } catch (Exception e) { throw e; } } } } } catch (Exception e) { e.printStackTrace(); throw e; } }
From source file:me.barrasso.android.volume.activities.ConfigurationActivity.java
@SuppressWarnings({ "rawtypes", "unchecked" })
private void invokeFragmentManagerNoteStateNotSaved() {
// For post-Honeycomb devices
if (Build.VERSION.SDK_INT < 11) {
return;/*from w w w.j a v a2 s . c om*/
}
try {
Class<?> cls = getClass();
do {
cls = cls.getSuperclass();
} while (!"Activity".equals(cls.getSimpleName()));
Field fragmentMgrField = cls.getDeclaredField("mFragments");
fragmentMgrField.setAccessible(true);
Object fragmentMgr = fragmentMgrField.get(this);
cls = fragmentMgr.getClass();
Method noteStateNotSavedMethod = cls.getDeclaredMethod("noteStateNotSaved", new Class[] {});
noteStateNotSavedMethod.invoke(fragmentMgr);
} catch (Exception ex) {
LOGE(TAG, "Error on FM.noteStateNotSaved", ex);
}
}