Java Servlet API 4.0.1 Source Code Files are important if you want to compile them with different JDK releases.

You can get Java Servlet API 4.0.1 Source Code Files from Servlet API Maven Website in the "4.0.1/" folder.

You can also browse Java Servlet API 4.0.1 Source Code files below:

⏎ javax/servlet/annotation/WebFilter.java

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 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://oss.oracle.com/licenses/CDDL+GPL-1.1
 * or LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
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 * file and include the License file at LICENSE.txt.
 *
 * GPL Classpath Exception:
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 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
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 */

package javax.servlet.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;
import javax.servlet.DispatcherType;

/**
 * Annotation used to declare a servlet filter.
 *
 * <p>This annotation is processed by the container at deployment time,
 * and the corresponding filter applied to the specified URL patterns,
 * servlets, and dispatcher types.
 * 
 * @see javax.servlet.Filter
 *
 * @since Servlet 3.0
 */
@Target({ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface WebFilter {

    /**
     * The description of the filter
     * 
     * @return the description of the filter
     */
    String description() default "";
    
    /**
     * The display name of the filter
     *
     * @return the display name of the filter
     */
    String displayName() default "";
    
    /**
     * The init parameters of the filter
     *
     * @return the init parameters of the filter
     */
    WebInitParam[] initParams() default {};
    
    /**
     * The name of the filter
     *
     * @return the name of the filter
     */
    String filterName() default "";
    
    /**
     * The small-icon of the filter
     *
     * @return the small-icon of the filter
     */
    String smallIcon() default "";

    /**
     * The large-icon of the filter
     *
     * @return the large-icon of the filter
     */
    String largeIcon() default "";

    /**
     * The names of the servlets to which the filter applies.
     *
     * @return the names of the servlets to which the filter applies
     */
    String[] servletNames() default {};
    
    /**
     * The URL patterns to which the filter applies
     * The default value is an empty array.
     *
     * @return the URL patterns to which the filter applies
     */
    String[] value() default {};

    /**
     * The URL patterns to which the filter applies
     *
     * @return the URL patterns to which the filter applies
     */
    String[] urlPatterns() default {};

    /**
     * The dispatcher types to which the filter applies
     *
     * @return the dispatcher types to which the filter applies
     */
    DispatcherType[] dispatcherTypes() default {DispatcherType.REQUEST};
    
    /**
     * Declares whether the filter supports asynchronous operation mode.
     *
     * @return {@code true} if the filter supports asynchronous operation mode
     * @see javax.servlet.ServletRequest#startAsync
     * @see javax.servlet.ServletRequest#startAsync(ServletRequest,
     * ServletResponse)
     */
    boolean asyncSupported() default false;

}

⏎ javax/servlet/annotation/WebFilter.java

Or download all of them as a single archive file:

File name: javax.servlet-api-4.0.1-sources.jar
File size: 203006 bytes
Release date: 2018-04-20
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