hotfix/source/openejb-core/src.original/main/java/org/apache/openejb/util/reflection/ReflectionUtil.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */

package org.apache.openejb.util.reflection;

import org.apache.openejb.OpenEJBException;

import java.lang.reflect.Field;

public final class ReflectionUtil {
    private ReflectionUtil() {
        // no-op
    }

    public static void set(Object notNullInstance, String fieldName, Object value) throws OpenEJBException {
        Field field = null;
        boolean accessible = true;
        try {
            Class<?> current = notNullInstance.getClass();
            while (!current.equals(Object.class) && field == null) {
                field = current.getDeclaredField(fieldName);
                current = current.getSuperclass();
            }
            accessible = field.isAccessible();
            if (!accessible) {
                field.setAccessible(true);
            }
            field.set(notNullInstance, value);
        } catch (Exception cce) {
            throw new OpenEJBException(cce);
        } finally {
            if (field != null) {
                field.setAccessible(accessible);
            }
        }
    }
}