Java Method Call invokeProtectedMethod(Class c, String method, Object... args)

Description

invoke Protected Method

License

Apache License

Declaration

public static Object invokeProtectedMethod(Class c, String method, Object... args) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.lang.reflect.Method;

public class Main {
    public static Object invokeProtectedMethod(Class c, String method, Object... args) {
        return invokeProtectedMethod(c, null, method, args);
    }/*from   w w  w  . j  a v  a2s  .com*/

    public static Object invokeProtectedMethod(Object o, String method, Object... args) {
        return invokeProtectedMethod(o.getClass(), o, method, args);
    }

    public static Object invokeProtectedMethod(Class c, Object o, String method, Object... args) {
        try {
            Class[] pTypes = new Class[args.length];
            for (int i = 0; i < args.length; i++) {
                if (args[i] instanceof Integer) {
                    pTypes[i] = int.class;
                } else {
                    pTypes[i] = args[i].getClass();
                }
            }

            Method m = c.getDeclaredMethod(method, pTypes);
            m.setAccessible(true);
            return m.invoke(o, args);
        } catch (Exception ex) {
            System.out.println("*** " + c.getName() + "." + method + "(): " + ex);
            return null;
        }
    }
}

Related

1. invokePrivateMethod(Method method, Object object, Object... args)
2. invokePrivateMethod(Object instance, String name, Object... args)
3. invokePrivateMethod(Object obj, String methodName, Class[] parameterTypes, Object[] args)
4. invokePrivateMethod(String methodName, Class clazz, Object object)
5. invokeProperty(Object obj, String property)
6. invokeProtectedMethod(Object o, Object[] args, String methodName, Class[] types)
7. invokeProxied(final Callable callable, final ClassLoader classLoader)
8. invokePublicMethod(Object o, String methodName, Class[] classes, Object[] objects)
9. invokeQuietly(MethodHandle handle, Object instance)