Main.java Source code

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Here is the source code for Main.java

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//package com.java2s;
/**
 * Copyright (c) 2015 nextlets.org
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies
 * or substantial portions of the Software.
 *
 * The Software shall be used for Good, not Evil.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
 * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

import java.lang.annotation.Annotation;

public class Main {
    public static <A extends Annotation> A getClassAnnotation(Class<?> clientInterface, Class<A> annotationClass) {
        A annotation = clientInterface.getAnnotation(annotationClass);
        if (annotation == null) {
            for (Class<?> parentClass : clientInterface.getInterfaces()) {
                annotation = getClassAnnotation(parentClass, annotationClass);
                if (annotation != null) {
                    System.out.println(parentClass);
                    return annotation;
                }
            }
        }
        return annotation;
    }
}