Java Method Call invokePrivateMethod(Object instance, String name, Object... args)

Description

invoke Private Method

License

Open Source License

Declaration

public static final <T> T invokePrivateMethod(Object instance, String name, Object... args) 

Method Source Code

//package com.java2s;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class Main {
    public static final <T> T invokePrivateMethod(Object instance, String name, Object... args) {

        Class<?>[] clazArray = new Class<?>[args.length];

        for (int i = 0; i < args.length; i++) {
            clazArray[i] = args[i].getClass();
        }//  w w w  . ja v a 2 s.  c  o  m

        try {
            Method method = instance.getClass().getDeclaredMethod(name, clazArray);
            method.setAccessible(true);

            T result = (T) method.invoke(instance, args);
            return result;

        } catch (NoSuchMethodException | SecurityException | IllegalAccessException | InvocationTargetException e) {

            throw new RuntimeException(e);
        }
    }

    public static final <T> T invokePrivateMethod(Object instance, String name) {

        try {
            Method method = instance.getClass().getDeclaredMethod(name);
            method.setAccessible(true);

            T result = (T) method.invoke(instance);
            return result;

        } catch (NoSuchMethodException | SecurityException | IllegalAccessException | InvocationTargetException e) {

            throw new RuntimeException(e);
        }
    }
}

Related

1. invokePrepare(Object instance)
2. invokePrimivite(Object entity, Method writeMethod, Class propertyType, String propertyValue)
3. invokePrivate(Class clazz, Object instance, String methodName, Class[] argTypes, Object[] args)
4. invokePrivate(String name, final Object obj, Object[] objects)
5. invokePrivateMethod(Method method, Object object, Object... args)
6. invokePrivateMethod(Object obj, String methodName, Class[] parameterTypes, Object[] args)
7. invokePrivateMethod(String methodName, Class clazz, Object object)
8. invokeProperty(Object obj, String property)
9. invokeProtectedMethod(Class c, String method, Object... args)