Java Reflection Field Value Set setFieldValue(Object target, Object mock, final Field field)

Description

set Field Value

License

Open Source License

Declaration

private static void setFieldValue(Object target, Object mock, final Field field) throws Exception 

Method Source Code

//package com.java2s;
/**/*from   w w  w  .j  a va 2  s .c om*/
 * Copyright (C) 2016 Czech Technical University in Prague
 *
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any
 * later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 * details. You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

import java.lang.reflect.Field;
import java.lang.reflect.Modifier;

public class Main {
    private static void setFieldValue(Object target, Object mock, final Field field) throws Exception {
        field.setAccessible(true);
        removeFinalModifier(field);
        field.set(target, mock);
    }

    private static void removeFinalModifier(Field field) throws Exception {
        Field modifiersField = Field.class.getDeclaredField("modifiers");
        modifiersField.setAccessible(true);
        modifiersField.setInt(field, field.getModifiers() & ~Modifier.FINAL);
    }
}

Related

1. setFieldValue(Object pojo, Field field, Object value)
2. setFieldValue(Object receiver, String fieldName, Object value)
3. setFieldValue(Object target, Class targetClass, String fieldName, Object value)
4. setFieldValue(Object target, Field field, Object newValue)
5. setFieldValue(Object target, Field field, Object value)
6. setFieldValue(Object target, String field, Object value)
7. setFieldValue(Object target, String fieldName, Object fieldValue)
8. setFieldValue(Object target, String fieldName, Object value)
9. setFieldValue(Object target, String fieldName, Object value)