Examples of java.lang.reflect.Field$FieldData

java.lang.reflect.Field
Keeps an information about this field

        }
        tp.add(property);
    }


    static Object getPrivateFieldValue(Object instance, String name) {
        Field field = fields.get(name);
        if (field == null) {
            int index = name.lastIndexOf('.');
            final String className = name.substring(0, index);
            final String fieldName = name.substring(1 + index);
            field = AccessController.doPrivileged(new PrivilegedAction<Field>() {
                public Field run() {
                    try {
                        Field field = Class.forName(className).getDeclaredField(fieldName);
                        field.setAccessible(true);
                        return field;
                    }
                    catch (ClassNotFoundException exception) {
                        throw new IllegalStateException("Could not find class", exception);
                    }
                    catch (NoSuchFieldException exception) {
                        throw new IllegalStateException("Could not find field", exception);
                    }
                }
            });
            fields.put(name, field);
        }
        try {
            return field.get(instance);
        }
        catch (IllegalAccessException exception) {
            throw new IllegalStateException("Could not get value of the field", exception);
        }
    }

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        properties.put("logger.org.objectweb.joram.mom.Destination.level", "FATAL");
        properties.put("logger.org.objectweb.joram.mom.Proxy.level", "FATAL");
        LoggerFactory factory = Monolog.init(properties);


        // Sets the JORAM monolog factory.
        Field field;
        try {
            field = fr.dyade.aaa.common.Debug.class.getDeclaredField("factory");
            field.setAccessible(true);
            field.set(null, factory);
        } catch (Exception e) {
            logger.error("Unable to setup logger of Joram", e);
        }


        // Build initial context

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     * @return value of the field; null if not found or an error is encountered
     */
    public static Object getPrivateField(Object instance, Class cls, 
           String name, ExceptionListener el) {
        try {
            Field f = cls.getDeclaredField(name);
            f.setAccessible(true);
            return f.get(instance);
        }
        catch (Exception e) {
      if (el != null) {
    el.exceptionThrown(e);
      }

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         ClientConnectionDelegate delegate = (ClientConnectionDelegate)connection.getDelegate();
         JMSRemotingConnection remotingConnection = delegate.getRemotingConnection();
         Client client = remotingConnection.getRemotingClient();


         Field field = JMSRemotingConnection.class.getDeclaredField("serverLocator");
         field.setAccessible(true);
         InvokerLocator locator = (InvokerLocator)field.get(remotingConnection);
         String transport = locator.getProtocol();


         if (!"http".equals(transport))
         {
            // not interesting
            return;
         }


         field = Client.class.getDeclaredField("callbackPollers");
         field.setAccessible(true);
         Map callbackPollers = (Map)field.get(client);
         assertEquals(1, callbackPollers.size());


         CallbackPoller callbackPoller = (CallbackPoller)callbackPollers.values().iterator().next();


         field = CallbackPoller.class.getDeclaredField("pollPeriod");
         field.setAccessible(true);
         Long pollPeriod = (Long)field.get(callbackPoller);
         assertEquals(ServiceContainer.HTTP_CONNECTOR_CALLBACK_POLL_PERIOD, pollPeriod.longValue());
      }
      finally
      {
         if (connection != null)

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         ClientConnectionDelegate delegate = (ClientConnectionDelegate)connection.getDelegate();
         JMSRemotingConnection remotingConnection = delegate.getRemotingConnection();
         Client client = remotingConnection.getRemotingClient();


         Field field = JMSRemotingConnection.class.getDeclaredField("serverLocator");
         field.setAccessible(true);
         InvokerLocator locator = (InvokerLocator)field.get(remotingConnection);
         String transport = locator.getProtocol();


         if ("socket".equals(transport)
               || "sslsocket".equals(transport)
               || "bisocket".equals(transport)
               || "sslbisocket".equals(transport))
         {
            field = Client.class.getDeclaredField("callbackConnectors");
            field.setAccessible(true);
            Map callbackConnectors = (Map)field.get(client);


            InvokerCallbackHandler callbackHandler = remotingConnection.getCallbackManager();
            Connector connector = (Connector)callbackConnectors.get(callbackHandler);
            locator = new InvokerLocator(connector.getInvokerLocator());
            assertEquals(address, locator.getHost());
            assertEquals(freePort, locator.getPort());
         }
         else if ("http".equals(transport))
         {
            field = Client.class.getDeclaredField("callbackPollers");
            field.setAccessible(true);
            Map callbackPollers = (Map)field.get(client);
            assertEquals(1, callbackPollers.size());


            CallbackPoller callbackPoller =
               (CallbackPoller)callbackPollers.values().iterator().next();


            field = CallbackPoller.class.getDeclaredField("pollPeriod");
            field.setAccessible(true);


            assertEquals(pollPeriod, ((Long)field.get(callbackPoller)).toString());
            
            field = CallbackPoller.class.getDeclaredField("reportStatistics");
            field.setAccessible(true);
            assertEquals(true, ((Boolean) field.get(callbackPoller)).booleanValue());
         }
         else
         {
            fail("Unrecognized transport: " + transport);
         }

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    }


    // Fields (reflection): 
    if (true) {
    {
      final Field f = javax.media.PlugInManager.class.getDeclaredField("DEMULTIPLEXER");
      assertEquals(f.getType().getName(), "int");
      assertEquals(f.getModifiers(), 25);
    }
    {
      final Field f = javax.media.PlugInManager.class.getDeclaredField("CODEC");
      assertEquals(f.getType().getName(), "int");
      assertEquals(f.getModifiers(), 25);
    }
    {
      final Field f = javax.media.PlugInManager.class.getDeclaredField("EFFECT");
      assertEquals(f.getType().getName(), "int");
      assertEquals(f.getModifiers(), 25);
    }
    {
      final Field f = javax.media.PlugInManager.class.getDeclaredField("RENDERER");
      assertEquals(f.getType().getName(), "int");
      assertEquals(f.getModifiers(), 25);
    }
    {
      final Field f = javax.media.PlugInManager.class.getDeclaredField("MULTIPLEXER");
      assertEquals(f.getType().getName(), "int");
      assertEquals(f.getModifiers(), 25);
    }
    }


    // Methods (compilation): 
    if (false) {

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                            try
                            {
                                Class cls = clr.classForName(valueType);
                                try
                                {
                                    Field fld = cls.getDeclaredField(keyMappedBy);
                                    mmd.getMap().setKeyType(fld.getType().getName());
                                }
                                catch (NoSuchFieldException nsfe)
                                {
                                    try
                                    {

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            AbstractMemberMetaData ammd = null;


            // Try as field
            try
            {
                Field overrideMember = type.getDeclaredField(baseMemberName);
                ammd = new FieldMetaData(embmd, baseMemberName);
                type = overrideMember.getType();
            }
            catch (Exception e)
            {
            }
            if (ammd == null)
            {
                // Try as property
                try
                {
                    Method overrideMember = type.getDeclaredMethod(ClassUtils.getJavaBeanGetterName(baseMemberName, false));
                    ammd = new FieldMetaData(embmd, baseMemberName);
                    type = overrideMember.getReturnType();
                }
                catch (Exception e)
                {
                }
            }

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            if (contextClassLoader) {
                throw new BuildException("Using setContextClassLoader not permitted when using Maven.", getLocation());
            }
            try {
                final Object propsHandler = project.getClass().getMethod("getPropsHandler").invoke(project);
                final Field contextField = propsHandler.getClass().getDeclaredField("context");
                contextField.setAccessible(true);
                final Object context = contextField.get(propsHandler);
                mavenPom = InvokerHelper.invokeMethod(context, "getProject", new Object[0]);
            }
            catch (Exception e) {
                throw new BuildException("Impossible to retrieve Maven's Ant project: " + e.getMessage(), getLocation());
            }

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            ((MetaClassRegistryImpl)GroovySystem.getMetaClassRegistry()).setMetaClass(self, metaClass);
        }
    }


    private static void disablePrimitiveOptimization(Object self) {
        Field sdyn;
        Class c = self.getClass();
        try {
            sdyn = c.getDeclaredField(Verifier.STATIC_METACLASS_BOOL);
            sdyn.setBoolean(null, true);
        } catch (Throwable e) {
            //DO NOTHING
        }
    }

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