Java Code Examples for java.lang.reflect.InvocationTargetException

/**
 * Instantiate an object given a class name. Check that the
 * <code>className</code> is a subclass of
 * <code>superClass</code>. If that test fails or the object could
 * not be instantiated, then <code>defaultValue</code> is returned.
 *
 * @param className    The fully qualified class name of the object to instantiate.
 * @param superClass   The class to which the new object should belong.
 * @param defaultValue The object to return in case of non-fulfillment
 */
public static Object instantiateByClassName(String className, Class<?> superClass,
        Object defaultValue) {
    if (className != null) {
        try {
            Object obj = LoaderUtil.newInstanceOf(className);
            if (!superClass.isAssignableFrom(obj.getClass())) {
                LOGGER.error("A \"{}\" object is not assignable to a \"{}\" variable", className,
                        superClass.getName());
                return defaultValue;
            }
            return obj;
        } catch (ClassNotFoundException | NoSuchMethodException | IllegalAccessException
                | InstantiationException | InvocationTargetException e) {
            LOGGER.error("Could not instantiate class [" + className + "].", e);
        }
    }
    return defaultValue;
}
 

@Test
void messageCanBeCustomized() throws IllegalAccessException, InvocationTargetException, InstantiationException, NoSuchMethodException {
    for (final EdsdkError value : EdsdkError.values()) {
        final Class<? extends EdsdkErrorException> aClass = value.getException().getClass();

        if (aClass.equals(EdsdkErrorException.class)) {
            continue;
        }

        final Constructor<? extends EdsdkErrorException> constructor;
        try {
            constructor = aClass.getConstructor(String.class);
        } catch (NoSuchMethodException e) {
            log.error("Missing constructor with string (message) for {}", value);
            throw e;
        }
        final EdsdkErrorException exception = constructor.newInstance("AnyMessage");
        Assertions.assertEquals("AnyMessage", exception.getMessage());
    }
}
 

public FXBrowserWindowSE(String startURL) {
    try {
        initUI(startURL);
    } catch (IllegalStateException ex) {
        try {
            EventQueue.invokeAndWait(new Runnable() {
                @Override
                public void run() {
                    new JFXPanel();
                }

            });
        } catch (InterruptedException iex) {
            Log.e(iex);
            throw ex;
        } catch (InvocationTargetException ite) {
            Log.e(ite);
            throw ex;
        }
        initUI(startURL);
    }
}
 

/**
 * Returns the elements of this enum class or null if this
 * Class object does not represent an enum type;
 * identical to getEnumConstants except that the result is
 * uncloned, cached, and shared by all callers.
 */
T[] getEnumConstantsShared() {
    if (enumConstants == null) {
        if (!isEnum()) return null;
        try {
            final Method values = getMethod("values");
            java.security.AccessController.doPrivileged(
                new java.security.PrivilegedAction<Void>() {
                    public Void run() {
                            values.setAccessible(true);
                            return null;
                        }
                    });
            @SuppressWarnings("unchecked")
            T[] temporaryConstants = (T[])values.invoke(null);
            enumConstants = temporaryConstants;
        }
        // These can happen when users concoct enum-like classes
        // that don't comply with the enum spec.
        catch (InvocationTargetException | NoSuchMethodException |
               IllegalAccessException ex) { return null; }
    }
    return enumConstants;
}
 

protected Maybe<Object> invoke() {
    findMethod();
    
    if (method.isPresent()) {
        Method m = method.get();
    
        checkCallAllowed(m);
    
        try {
            // Value is most likely another BrooklynDslDeferredSupplier - let the caller handle it,
            return Maybe.of(Reflections.invokeMethodFromArgs(instance, m, instanceArgs));
        } catch (IllegalArgumentException | IllegalAccessException | InvocationTargetException e) {
            // If the method is there but not executable for whatever reason fail with a fatal error, don't return an absent.
            throw Exceptions.propagateAnnotated("Error invoking '"+toStringF(fnName, instanceArgs)+"' on '"+instance+"'", e);
        }
    } else {
        // could do deferred execution if an argument is a deferred supplier:
        // if we get a present from:
        // new Invoker(obj, fnName, replaceSuppliersWithNull(args)).findMethod()
        // then return a
        // new DslDeferredFunctionCall(...)
        
        return Maybe.absent(new IllegalArgumentException("No such function '"+fnName+"' taking args "+args+" (on "+obj+")"));
    }
}
 

@TargetApi(26)
private boolean isChannelBlocked(@ChannelDefinitions.ChannelId String channelId) {
    // Use non-compat notification manager as compat does not have getNotificationChannel (yet).
    NotificationManager notificationManager =
            ContextUtils.getApplicationContext().getSystemService(NotificationManager.class);
    /*
    The code in the try-block uses reflection in order to compile as it calls APIs newer than
    our compileSdkVersion of Android. The equivalent code without reflection looks like this:

        NotificationChannel channel = notificationManager.getNotificationChannel(channelId);
        return (channel.getImportance() == NotificationManager.IMPORTANCE_NONE);
     */
    // TODO(crbug.com/707804) Remove the following reflection once compileSdk is bumped to O.
    try {
        Method getNotificationChannel = notificationManager.getClass().getMethod(
                "getNotificationChannel", String.class);
        Object channel = getNotificationChannel.invoke(notificationManager, channelId);
        Method getImportance = channel.getClass().getMethod("getImportance");
        int importance = (int) getImportance.invoke(channel);
        return (importance == NotificationManager.IMPORTANCE_NONE);
    } catch (NoSuchMethodException | InvocationTargetException | IllegalAccessException e) {
        Log.e(TAG, "Error checking channel importance:", e);
    }
    return false;
}
 

public By getBy(String propertyName, String value) {
    value = Objects.toString(value, "");
    for (ObjectPropClass objectPropClass : OBJ_PROP_CLASSES) {
        if (objectPropClass.propertyMethodMap.containsKey(propertyName)) {
            Method method = objectPropClass.propertyMethodMap.get(propertyName);
            try {
                return (By) method.invoke(objectPropClass.classObject, value);
            } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException ex) {
                Logger.getLogger(ByObjectProp.class.getName()).log(Level.SEVERE, null, ex);
            }
            break;
        }
    }
    Logger.getLogger(ByObjectProp.class.getName()).log(Level.SEVERE, "Find logic not implemented for - {0}", propertyName);
    return null;
}
 

@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
	if (ReflectionUtils.isEqualsMethod(method)) {
		// Only consider equal when proxies are identical.
		return (proxy == args[0]);
	}
	else if (ReflectionUtils.isHashCodeMethod(method)) {
		// Use hashCode of reference proxy.
		return System.identityHashCode(proxy);
	}
	else if (!initialized && ReflectionUtils.isToStringMethod(method)) {
		return "Early singleton proxy for interfaces " +
				ObjectUtils.nullSafeToString(getEarlySingletonInterfaces());
	}
	try {
		return method.invoke(getSingletonInstance(), args);
	}
	catch (InvocationTargetException ex) {
		throw ex.getTargetException();
	}
}
 

public static InvocationHandler create( final Object delegate )
{
    SecurityManager s = System.getSecurityManager();
    if (s != null) {
        s.checkPermission(new DynamicAccessPermission("access"));
    }
    return new InvocationHandler() {
        public Object invoke( Object proxy, Method method, Object[] args )
            throws Throwable
        {
            // This throws an IllegalArgument exception if the delegate
            // is not assignable from method.getDeclaring class.
            try {
                return method.invoke( delegate, args ) ;
            } catch (InvocationTargetException ite) {
                // Propagate the underlying exception as the
                // result of the invocation
                throw ite.getCause() ;
            }
        }
    } ;
}
 

@Override
public Object tryInvoke(String name, Object obj, Object... params) {
    try {
        Class<?> ctorClass = ctor.getDeclaringClass();
        boolean invoke = true;
        if (obj != null) {
            if (obj instanceof Class<?>) {
                invoke = ctorClass.equals(obj);
            } else {
                invoke = ctorClass.getName().equals(obj.toString());
            }
        }
        invoke &= name == null || ctorClass.getName().equals(name);
        if (invoke) {
            return ctor.newInstance(params);
        }
    } catch (InstantiationException | IllegalArgumentException | IllegalAccessException xinstance) {
        return Uberspect.TRY_FAILED;
    } catch (InvocationTargetException xinvoke) {
        throw JexlException.tryFailed(xinvoke); // throw
    }
    return Uberspect.TRY_FAILED;
}
 

private Object createInetSocketAddress(String host, int port)
        throws NoSuchMethodException {

    try {
        Class<?> inetSocketAddressClass =
            Class.forName("java.net.InetSocketAddress");

        Constructor<?> inetSocketAddressCons =
            inetSocketAddressClass.getConstructor(new Class<?>[]{
            String.class, int.class});

        return inetSocketAddressCons.newInstance(new Object[]{
            host, new Integer(port)});

    } catch (ClassNotFoundException |
             InstantiationException |
             InvocationTargetException |
             IllegalAccessException e) {
        throw new NoSuchMethodException();

    }
}
 

private static boolean truncate(final FileSystem hadoopFs, final Path file, final long length) throws IOException {
	if (truncateHandle != null) {
		try {
			return (Boolean) truncateHandle.invoke(hadoopFs, file, length);
		}
		catch (InvocationTargetException e) {
			ExceptionUtils.rethrowIOException(e.getTargetException());
		}
		catch (Throwable t) {
			throw new IOException(
					"Truncation of file failed because of access/linking problems with Hadoop's truncate call. " +
							"This is most likely a dependency conflict or class loading problem.");
		}
	}
	else {
		throw new IllegalStateException("Truncation handle has not been initialized");
	}
	return false;
}
 

public static InvocationHandler create( final Object delegate )
{
    SecurityManager s = System.getSecurityManager();
    if (s != null) {
        s.checkPermission(new DynamicAccessPermission("access"));
    }
    return new InvocationHandler() {
        public Object invoke( Object proxy, Method method, Object[] args )
            throws Throwable
        {
            // This throws an IllegalArgument exception if the delegate
            // is not assignable from method.getDeclaring class.
            try {
                return method.invoke( delegate, args ) ;
            } catch (InvocationTargetException ite) {
                // Propagate the underlying exception as the
                // result of the invocation
                throw ite.getCause() ;
            }
        }
    } ;
}
 

/**
 * Ensure that OssIndexPlugin properly assembles the proxy argument and passes it to the DependencyAuditor.
 */
@Test
public void httpSystemProxyTest() throws InvocationTargetException, IllegalAccessException, NoSuchMethodException {
  Project project = mockProject();

  // Mock the proxy being provided as project properties
  mockSystemProxy(project, "http");

  OssIndexPlugin plugin = new OssIndexPlugin();
  AuditorFactory factory = mockAuditorFactory();
  plugin.setAuditorFactory(factory);

  // Simulate the process the gradle runs
  runGradleSimulation(project, plugin);

  verify(factory).getDependencyAuditor(null, Collections.EMPTY_SET, Collections.singletonList(getExpectedProxy("http")));
}
 

public static Object runRubyMethod(Object receiver, String methodName, Object... args) {
    try {
        Method m = ruby.getClass().getMethod("runRubyMethod", Class.class, Object.class, String.class, Object[].class);
        return m.invoke(ruby, Object.class, receiver, methodName, args);
    } catch (NoSuchMethodException nsme) {
        throw new RuntimeException(nsme);
    } catch (IllegalAccessException iae) {
        throw new RuntimeException(iae);
    } catch (java.lang.reflect.InvocationTargetException ite) {
        printStackTrace(ite);
        if (isDebugBuild) {
            throw new RuntimeException(ite);
        }
    }
    return null;
}
 

@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
    if (method.getName().equals("getStatement")) {
        return this.st;
    } else {
        try {
            return method.invoke(this.delegate, args);
        } catch (Throwable t) {
            if (t instanceof InvocationTargetException
                    && t.getCause() != null) {
                throw t.getCause();
            } else {
                throw t;
            }
        }
    }
}
 

/**
 * Returns an estimate for the pth percentile of the stored values. 
 * <p>
 * The implementation provided here follows the first estimation procedure presented
 * <a href="http://www.itl.nist.gov/div898/handbook/prc/section2/prc252.htm">here.</a>
 * </p><p>
 * <strong>Preconditions</strong>:<ul>
 * <li><code>0 &lt; p &lt; 100</code> (otherwise an 
 * <code>IllegalArgumentException</code> is thrown)</li>
 * <li>at least one value must be stored (returns <code>Double.NaN
 *     </code> otherwise)</li>
 * </ul></p>
 * 
 * @param p the requested percentile (scaled from 0 - 100)
 * @return An estimate for the pth percentile of the stored data 
 * @throws IllegalStateException if percentile implementation has been
 *  overridden and the supplied implementation does not support setQuantile
 * values
 */
public double getPercentile(double p) {
    if (percentileImpl instanceof Percentile) {
        ((Percentile) percentileImpl).setQuantile(p);
    } else {
        try {
            percentileImpl.getClass().getMethod("setQuantile", 
                    new Class[] {Double.TYPE}).invoke(percentileImpl,
                            new Object[] {new Double(p)});
        } catch (NoSuchMethodException e1) { // Setter guard should prevent
            throw new IllegalArgumentException(
               "Percentile implementation does not support setQuantile");
        } catch (IllegalAccessException e2) {
            throw new IllegalArgumentException(
                "IllegalAccessException setting quantile"); 
        } catch (InvocationTargetException e3) {
            throw new IllegalArgumentException(
                "Error setting quantile" + e3.toString()); 
        }
    }
    return apply(percentileImpl);
}
 

public static InvocationHandler create( final Object delegate )
{
    SecurityManager s = System.getSecurityManager();
    if (s != null) {
        s.checkPermission(new DynamicAccessPermission("access"));
    }
    return new InvocationHandler() {
        public Object invoke( Object proxy, Method method, Object[] args )
            throws Throwable
        {
            // This throws an IllegalArgument exception if the delegate
            // is not assignable from method.getDeclaring class.
            try {
                return method.invoke( delegate, args ) ;
            } catch (InvocationTargetException ite) {
                // Propagate the underlying exception as the
                // result of the invocation
                throw ite.getCause() ;
            }
        }
    } ;
}
 

/**
 * Waits until all events currently on the event queue have been processed.
 * @throws  IllegalThreadStateException if called on the AWT event dispatching thread
 */
public synchronized void waitForIdle() {
    checkNotDispatchThread();
    // post a dummy event to the queue so we know when
    // all the events before it have been processed
    try {
        SunToolkit.flushPendingEvents();
        EventQueue.invokeAndWait( new Runnable() {
                                        public void run() {
                                            // dummy implementation
                                        }
                                    } );
    } catch(InterruptedException ite) {
        System.err.println("Robot.waitForIdle, non-fatal exception caught:");
        ite.printStackTrace();
    } catch(InvocationTargetException ine) {
        System.err.println("Robot.waitForIdle, non-fatal exception caught:");
        ine.printStackTrace();
    }
}
 

/**
 * Run all methods annotated with @Test, and throw an exception if any
 * errors are reported..
 * Typically called on a tester object in main()
 * @throws Exception if any errors occurred
 */
void runTests() throws Exception {
    for (Method m: getClass().getDeclaredMethods()) {
        Annotation a = m.getAnnotation(Test.class);
        if (a != null) {
            try {
                out.println("Running test " + m.getName());
                m.invoke(this);
            } catch (InvocationTargetException e) {
                Throwable cause = e.getCause();
                throw (cause instanceof Exception) ? ((Exception) cause) : e;
            }
            out.println();
        }
    }
    if (errors > 0)
        throw new Exception(errors + " errors occurred");
}
 

public static void aquireAndRun(Identifiable identifiable, ILockHandler handler){
	Display display = Display.getDefault();
	display.syncExec(new Runnable() {
		
		@Override
		public void run(){
			ProgressMonitorDialog progress =
				new ProgressMonitorDialog(display.getActiveShell());
			try {
				progress.run(true, true, new AcquireLockRunnable(identifiable, handler));
			} catch (InvocationTargetException | InterruptedException e) {
				logger.warn("Exception during acquire lock.", e);
			}
		}
	});
}
 

private synchronized void initializeClusterManager(Configuration conf, ClusterType clusterType)
    throws ClusterManagerInitilizationException
{
  if (clusterManager != null) {
    return;
  }

  String clusterManagerClassName = CacheConfig.getClusterManagerClass(conf, clusterType);
  log.info("Initializing cluster manager : " + clusterManagerClassName);

  try {
    Class clusterManagerClass = conf.getClassByName(clusterManagerClassName);
    Constructor constructor = clusterManagerClass.getConstructor();
    ClusterManager manager = (ClusterManager) constructor.newInstance();

    manager.initialize(conf);
    setClusterManager(manager);
  }
  catch (ClassNotFoundException | NoSuchMethodException | InstantiationException |
          IllegalAccessException | InvocationTargetException ex) {
    String errorMessage = String.format("Not able to initialize ClusterManager class : {0} ",
        clusterManagerClassName);
    log.error(errorMessage, ex);
    throw new ClusterManagerInitilizationException(errorMessage, ex);
  }
}
 

/**
 * Invokes NumericShaping shape(text,start,count) method.
 */
static void shape(Object shaper, char[] text, int start, int count) {
    if (shapeMethod == null)
        throw new AssertionError("Should not get here");
    try {
        shapeMethod.invoke(shaper, text, start, count);
    } catch (InvocationTargetException e) {
        Throwable cause = e.getCause();
        if (cause instanceof RuntimeException)
            throw (RuntimeException)cause;
        throw new AssertionError(e);
    } catch (IllegalAccessException iae) {
        throw new AssertionError(iae);
    }
}
 

/**
 * Inject the configuration opProps into the operator instance.
 * @param operator
 * @param properties
 * @return Operator
 */
public static GenericOperator setOperatorProperties(GenericOperator operator, Map<String, String> properties)
{
  try {
    // populate custom opProps
    BeanUtils.populate(operator, properties);
    return operator;
  } catch (IllegalAccessException | InvocationTargetException e) {
    throw new IllegalArgumentException("Error setting operator properties", e);
  }
}
 

public static void main(String args[]) throws InvocationTargetException, InterruptedException {
    if (Util.getWMID() != Util.METACITY_WM) {
        System.out.println("This test is only useful on Metacity");
        return;
    }
    robot = Util.createRobot();
    Util.waitForIdle(robot);
    final FullscreenDialogModality frame = new FullscreenDialogModality();
    frame.setUndecorated(true);
    frame.setBackground(Color.green);
    frame.setSize(500, 500);
    frame.setVisible(true);
    try {
        robot.delay(100);
        Util.waitForIdle(robot);

        EventQueue.invokeAndWait(new Runnable() {
            public void run() {
                frame.enterFS();
            }
        });
        robot.delay(200);
        Util.waitForIdle(robot);

        frame.checkDialogModality();

        EventQueue.invokeAndWait(new Runnable() {
            public void run() {
                frame.exitFS();
            }
        });
    } finally {
        frame.dispose();
    }
}
 

/** Returns a (deep) clone of this averagable. */
@Override
public Object clone() throws CloneNotSupportedException {
	try {
		Class<? extends Averagable> clazz = this.getClass();
		Constructor<? extends Averagable> cloneConstructor = clazz.getConstructor(clazz);
		return cloneConstructor.newInstance(this);
	} catch (IllegalAccessException | InstantiationException | InvocationTargetException | NoSuchMethodException e) {
		throw new CloneNotSupportedException("Cannot clone averagable: " + e.getMessage());
	}
}
 

@Test
public void callThrowsInvocationTargetException() throws Exception {
    Object context = new Object();
    PropertyResolveRequest request = mock(PropertyResolveRequest.class);

    given(request.getContext()).willReturn(context);
    given(javaMethod.invoke(eq(context), argThat(arrayHasItem(argument)))).willThrow(InvocationTargetException.class);

    Optional<Value> result = underTest.resolve(request);

    assertEquals(Optional.<Value>absent(), result);
}
 

@Override
public void validateField(String name, Object o) {
    try {
        validateField(name, this.entryValidators, o);
    } catch (NoSuchMethodException | IllegalAccessException
            | InvocationTargetException | InstantiationException e) {
        throw new RuntimeException(e);
    }
}
 

/**
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 *
 * @generated
 */
@Override
public Object eInvoke ( final int operationID, final EList<?> arguments ) throws InvocationTargetException
{
    switch ( operationID )
    {
        case ItemPackage.SCRIPT_CUSTOMIZATION_PIPELINE___GET_SCRIPT_ENGINE:
            return getScriptEngine ();
        case ItemPackage.SCRIPT_CUSTOMIZATION_PIPELINE___CUSTOMIZE__CUSTOMIZATIONREQUEST:
            customize ( (CustomizationRequest)arguments.get ( 0 ) );
            return null;
    }
    return super.eInvoke ( operationID, arguments );
}
 

@Test
public void importOfTypesInPackageInUnexistingPackage() throws NoSuchMethodException, IOException, InvocationTargetException, IllegalAccessException {
    errorCollector = createMock(ErrorCollector.class);
    errorCollector.recordSemanticError(Position.create(3, 0, 3, 24), "Import not resolved: foo.unexisting");
    replay(errorCollector);
    attemptToCompile("importOfTypesFromUnexistingPackage", Collections.emptyList());
    verify(errorCollector);
}