hotfix/source/openejb-core_4.5.2/src/main/java/org/apache/openejb/util/AnnotationUtil.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;

import java.lang.annotation.Annotation;

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

    public static <T extends Annotation> T getAnnotation(Class<T> a, Class<?> clazz) {
        Class<?> current = clazz;
        do {
            T annotation = current.getAnnotation(a);
            if (annotation != null) {
                return annotation;
            }
            current = current.getSuperclass();
        } while (current != null);
        return null;
    }
}