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/*
 * ====================================================================
 * 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.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * .
 *
 */
package org.apache.http.annotation;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * The class to which this annotation is applied is thread-safe.  This means that
 * no sequences of accesses (reads and writes to public fields, calls to public methods)
 * may put the object into an invalid state, regardless of the interleaving of those actions
 * by the runtime, and without requiring any additional synchronization or coordination on the
 * part of the caller.
 * @see NotThreadSafe
 * 
 * Based on code developed by Brian Goetz and Tim Peierls and concepts
 * published in 'Java Concurrency in Practice' by Brian Goetz, Tim Peierls,
 * Joshua Bloch, Joseph Bowbeer, David Holmes and Doug Lea.
 */
@Documented
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.CLASS) // The original version used RUNTIME
public @interface ThreadSafe {
}