List of usage examples for java.lang InstantiationException printStackTrace
public void printStackTrace(PrintStream s)
From source file:uk.ac.kcl.texthunter.utils.Utils.java
public static Connection loadAndConnectDerby(Connection con) { /*//from w w w . j av a 2 s. c om * The JDBC driver is loaded by loading its class. * If you are using JDBC 4.0 (Java SE 6) or newer, JDBC drivers may * be automatically loaded, making this code optional. * * In an embedded environment, this will also start up the Derby * engine (though not any databases), since it is not already * running. In a client environment, the Derby engine is being run * by the network server framework. * * In an embedded environment, any static Derby system properties * must be set before loading the driver to take effect. */ String driver = "org.apache.derby.jdbc.EmbeddedDriver"; String protocol = "jdbc:derby:"; try { Class.forName(driver).newInstance(); // System.out.println("Loaded the appropriate driver"); } catch (ClassNotFoundException cnfe) { System.err.println("\nUnable to load the JDBC driver " + driver); System.err.println("Please check your CLASSPATH."); cnfe.printStackTrace(System.err); } catch (InstantiationException ie) { System.err.println("\nUnable to instantiate the JDBC driver " + driver); ie.printStackTrace(System.err); } catch (IllegalAccessException iae) { System.err.println("\nNot allowed to access the JDBC driver " + driver); iae.printStackTrace(System.err); } /* By default, the schema APP will be used when no username is * provided. * Otherwise, the schema name is the same as the user name (in this * case "user1" or USER1.) * * Note that user authentication is off by default, meaning that any * user can connect to your database using any password. To enable * authentication, see the Derby Developer's Guide. */ String dbName = "annotationDB"; // the name of the database try { /* * This connection specifies create=true in the connection URL to * cause the database to be created when connecting for the first * time. To remove the database, remove the directory derbyDB (the * same as the database name) and its contents. * * The directory derbyDB will be created under the directory that * the system property derby.system.home points to, or the current * directory (user.dir) if derby.system.home is not set. */ con = DriverManager.getConnection(protocol + dbName + ";create=true"); } catch (SQLException ex) { Logger.getLogger(Utils.class.getName()).log(Level.SEVERE, null, ex); } return con; }
From source file:org.apache.jmeter.junit.JMeterTest.java
public static Collection<Object> getObjects(Class<?> extendsClass) throws Exception { String exName = extendsClass.getName(); Object myThis = ""; Iterator<String> classes = ClassFinder .findClassesThatExtend(JMeterUtils.getSearchPaths(), new Class[] { extendsClass }).iterator(); List<Object> objects = new LinkedList<>(); String n = ""; boolean caughtError = true; Throwable caught = null;/* www . java 2s . co m*/ try { while (classes.hasNext()) { n = classes.next(); // TODO - improve this check if (n.endsWith("RemoteJMeterEngineImpl")) { continue; // Don't try to instantiate remote server } Class<?> c = null; try { c = Class.forName(n); try { // Try with a parameter-less constructor first objects.add(c.newInstance()); } catch (InstantiationException e) { caught = e; try { // Events often have this constructor objects.add(c.getConstructor(new Class[] { Object.class }) .newInstance(new Object[] { myThis })); } catch (NoSuchMethodException f) { // no luck. Ignore this class System.out.println( "o.a.j.junit.JMeterTest WARN: " + exName + ": NoSuchMethodException " + n + ", missing empty Constructor or Constructor with Object parameter"); } } } catch (NoClassDefFoundError e) { // no luck. Ignore this class System.out.println("o.a.j.junit.JMeterTest WARN: " + exName + ": NoClassDefFoundError " + n + ":" + e.getMessage()); e.printStackTrace(System.out); } catch (IllegalAccessException e) { caught = e; System.out.println("o.a.j.junit.JMeterTest WARN: " + exName + ": IllegalAccessException " + n + ":" + e.getMessage()); e.printStackTrace(System.out); // We won't test restricted-access classes. } catch (HeadlessException | ExceptionInInitializerError e) {// EIIE can be caused by Headless caught = e; System.out.println("o.a.j.junit.JMeterTest Error creating " + n + " " + e.toString()); } catch (Exception e) { caught = e; if (e instanceof RemoteException) { // not thrown, so need to check here System.out.println( "o.a.j.junit.JMeterTest WARN: " + "Error creating " + n + " " + e.toString()); } else { throw new Exception("Error creating " + n, e); } } } caughtError = false; } finally { if (caughtError) { System.out.println("Last class=" + n); System.out.println("objects.size=" + objects.size()); System.out.println("Last error=" + caught); } } if (objects.isEmpty()) { System.out.println("No classes found that extend " + exName + ". Check the following:"); System.out.println("Search paths are:"); String ss[] = JMeterUtils.getSearchPaths(); for (String s : ss) { System.out.println(s); } if (!classPathShown) {// Only dump it once System.out.println("Class path is:"); String cp = System.getProperty("java.class.path"); String classPathElements[] = JOrphanUtils.split(cp, java.io.File.pathSeparator); for (String classPathElement : classPathElements) { System.out.println(classPathElement); } classPathShown = true; } } return objects; }
From source file:org.jdal.ui.bind.ConfigurableControlAccessorFactory.java
/** * {@inheritDoc}//w ww. j av a 2s.c om */ @SuppressWarnings({ "unchecked", "rawtypes" }) public ControlAccessor getControlAccessor(Object control) { Class<? extends ControlAccessor> accessorClass = null; ControlAccessor accessor = null; Class<? extends Object> clazz = control.getClass(); accessorClass = accessors.get(clazz); if (accessorClass == null) { // try with superclasses List superclasses = ClassUtils.getAllSuperclasses(clazz); superclasses.addAll(ClassUtils.getAllInterfaces(clazz)); Iterator iter = superclasses.iterator(); while (iter.hasNext() && accessorClass == null) { accessorClass = accessors.get(iter.next()); } } if (accessorClass != null) { try { Constructor<? extends ControlAccessor> ctor = accessorClass.getConstructor(Object.class); accessor = ctor.newInstance(control); } catch (InstantiationException e) { log.error(e); } catch (IllegalAccessException e) { log.error(e); } catch (SecurityException e) { log.error(e); } catch (NoSuchMethodException e) { log.error(e); } catch (IllegalArgumentException e) { log.error(e); } catch (InvocationTargetException e) { ByteArrayOutputStream baos = new ByteArrayOutputStream(); e.printStackTrace(new PrintStream(baos)); log.error(baos); } } else { log.warn("Can't find a accessor for class: " + clazz.getName()); } return accessor; }