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Contains the core Hudson code and view files to render HTML.

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/*******************************************************************************
 *
 * Copyright (c) 2004-2009 Oracle Corporation.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * 
*    Kohsuke Kawaguchi
 *
 *
 *******************************************************************************/ 

package hudson;

import java.lang.annotation.Documented;
import static java.lang.annotation.ElementType.FIELD;
import java.lang.annotation.Retention;
import static java.lang.annotation.RetentionPolicy.SOURCE;
import java.lang.annotation.Target;

/**
 * Represents fields that are protected for concurrency by the copy-on-write
 * semantics.
 *
 *  Fields marked by this annotation always holds on to an immutable
 * collection. A change to the collection must be done by first creating a new
 * collection object, making changes, then replacing the reference atomically.
 *
 * 
 This allows code to access the field without synchronization, and greatly
 * reduces the risk of dead-lock bugs.
 *
 *  The field marked with this annotation usually needs to be marked as
 * volatile.
 *
 * @author Kohsuke Kawaguchi
 */
@Retention(SOURCE)
@Documented
@Target(FIELD)
public @interface CopyOnWrite {
}