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    • org.jboss.weld.interceptor.util.ReflectionUtils Maven / Gradle / Ivy

    /*
 * JBoss, Home of Professional Open Source
 * Copyright 2009, Red Hat, Inc. and/or its affiliates, and individual
 * contributors by the @authors tag. See the copyright.txt in the
 * distribution for a full listing of individual contributors.
 *
 * 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.
 */

package org.jboss.weld.interceptor.util;

import java.lang.reflect.Method;
import java.security.AccessController;
import java.security.PrivilegedAction;

/**
 * @author Marius Bogoevici
 */
public class ReflectionUtils {

    public static void ensureAccessible(final Method method) {
        doSecurely(new PrivilegedAction() {
            public Object run() {
                method.setAccessible(true);
                return null;
            }
        });

    }

    public static Class classForName(String className) throws ClassNotFoundException {
        ClassLoader threadContextClassLoader = getThreadContextClassLoader();
        if (threadContextClassLoader != null) {
            return threadContextClassLoader.loadClass(className);
        } else {
            return Class.forName(className);
        }
    }

    public static ClassLoader getThreadContextClassLoader() {
        return doSecurely(new PrivilegedAction() {
            public ClassLoader run() {
                return Thread.currentThread().getContextClassLoader();
            }
        });
    }

    private static  O doSecurely(final PrivilegedAction action) {
        SecurityManager sm = System.getSecurityManager();
        if (sm != null) {
            return AccessController.doPrivileged(action);
        } else {
            return action.run();
        }
    }

}
    
    
    
    

    




    
    
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