Here you can find the source of setFieldValue_internal(Object bean, Field field, Object value)
private static void setFieldValue_internal(Object bean, Field field, Object value)
//package com.java2s; /*-------------------------------------------------------------------------- * Copyright 2009 Taro L. Saito//from w w w . j a va2 s . c o m * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *--------------------------------------------------------------------------*/ import java.lang.reflect.Field; public class Main { private static void setFieldValue_internal(Object bean, Field field, Object value) { try { field.set(bean, value); } catch (IllegalAccessException e) { field.setAccessible(true); try { field.set(bean, value); } catch (IllegalAccessException e1) { throw new IllegalAccessError(e1.getMessage()); } } } }