Java Method from Class invokePrivateMethod(String methodName, Class[] params, Object[] args, Class containingClass, Object invocationTarget)

Description

invoke Private Method

License

CDDL license

Declaration

public static Object invokePrivateMethod(String methodName,
            Class[] params, Object[] args, Class containingClass,
            Object invocationTarget) 

Method Source Code

//package com.java2s;
/*// w w  w. java2 s .  c  o m
 * The contents of this file are subject to the terms
 * of the Common Development and Distribution License
 * (the License). You may not use this file except in
 * compliance with the License.
 * 
 * You can obtain a copy of the License at
 * https://javaserverfaces.dev.java.net/CDDL.html or
 * legal/CDDLv1.0.txt. 
 * See the License for the specific language governing
 * permission and limitations under the License.
 * 
 * When distributing Covered Code, include this CDDL
 * Header Notice in each file and include the License file
 * at legal/CDDLv1.0.txt.    
 * If applicable, add the following below the CDDL Header,
 * with the fields enclosed by brackets [] replaced by
 * your own identifying information:
 * "Portions Copyrighted [year] [name of copyright owner]"
 * 
 * [Name of File] [ver.__] [Date]
 * 
 * Copyright 2005 Sun Microsystems Inc. All Rights Reserved
 */

import java.lang.reflect.Method;

public class Main {
    public static Object invokePrivateMethod(String methodName,
            Class[] params, Object[] args, Class containingClass,
            Object invocationTarget) {
        try {
            Method method = containingClass.getDeclaredMethod(methodName,
                    params);
            method.setAccessible(true);
            return method.invoke(invocationTarget, args);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}

Related

1. getDeclaredMethod(final Class clazz, final String methodName, final Class[] methodParameterTypes)
2. getMethod(Class type, Method m)
3. getMethod(final Class javaClass, final String methodName, final Class[] methodParameterTypes, final boolean shouldSetAccessible)
4. getMethods(final Class clazz)
5. hasMethod(String clazz, String methodName, Class[] methodTypes)