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Java example source code file (ThreadSafe.java)

This example source code file (ThreadSafe.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java tags/keywords

annotation, documented, runtime, the, threadsafe

The ThreadSafe.java example source code

/*
 * ====================================================================
 *
 *  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
 * <http://www.apache.org/>.
 *
 */
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
 * <p>
 * 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 {
}

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