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The Apache Commons Codec package contains simple encoder and decoders for various formats such as Base64 and Hexadecimal. In addition to these widely used encoders and decoders, the codec package also maintains a collection of phonetic encoding utilities.

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/*   Copyright 2004 The Apache Software Foundation
 *
 *   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.apache.xmlbeans;

import org.apache.xmlbeans.impl.common.SystemCache;
import org.apache.xmlbeans.impl.schema.StscState;
import org.apache.xmlbeans.impl.store.CharUtil;
import org.apache.xmlbeans.impl.store.Locale;
import org.apache.xmlbeans.impl.values.NamespaceContext;

public class ThreadLocalUtil {

    /**
     * Clear {@link ThreadLocal}s of the current thread.
     *
     * This can be used to clean out a thread before "returning"
     * it to a thread-pool or a Web-Container like Tomcat.
     */
    public static void clearAllThreadLocals() {
        // clear thread locals in all classes which may hold some
        XmlBeans.clearThreadLocals();
        XmlFactoryHook.ThreadContext.clearThreadLocals();
        StscState.clearThreadLocals();
        CharUtil.clearThreadLocals();
        Locale.clearThreadLocals();
        NamespaceContext.clearThreadLocals();

        // SystemCache is not a singleton, but also creates ThreadLocals,
        // so we get the current instance and clean it out as well
        SystemCache systemCache = SystemCache.get();
        systemCache.clearThreadLocals();
    }
}