Java Architecture for XML Binding (JAXB) is a Java API that allows Java developers to map Java classes to XML representations.

jaxb-api-2.3.1.jar is the JAR file for the JAXB API 2.3 specification. You can download and use it directly without any building process as shown in the last tutorial.

If you want to rebuild the JAR file, you can download the source code at JAXB API Maven Website.

You can also browse the source code below:

⏎ javax/xml/bind/JAXBPermission.java

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2007-2017 Oracle and/or its affiliates. All rights reserved.
 *
 * 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.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
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 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package javax.xml.bind;

import java.security.BasicPermission;

/**
 * This class is for JAXB permissions. A {@code JAXBPermission}
 * contains a name (also referred to as a "target name") but
 * no actions list; you either have the named permission
 * or you don't.
 *
 * <P>
 * The target name is the name of the JAXB permission (see below).
 *
 * <P>
 * The following table lists all the possible {@code JAXBPermission} target names,
 * and for each provides a description of what the permission allows
 * and a discussion of the risks of granting code the permission.
 *
 * <table class="striped">
 * <caption style="display:none">Permission target name, what the permission allows, and associated risks"</caption>
 * <thead>
 * <tr>
 * <th scope="col">Permission Target Name</th>
 * <th scope="col">What the Permission Allows</th>
 * <th scope="col">Risks of Allowing this Permission</th>
 * </tr>
 * </thead>
 *
 * <tbody style="text-align:left">
 * <tr>
 *   <th scope="row">setDatatypeConverter</th>
 *   <td>
 *     Allows the code to set VM-wide {@link DatatypeConverterInterface}
 *     via {@link DatatypeConverter#setDatatypeConverter(DatatypeConverterInterface) the setDatatypeConverter method}
 *     that all the methods on {@link DatatypeConverter} uses.
 *   </td>
 *   <td>
 *     Malicious code can set {@link DatatypeConverterInterface}, which has
 *     VM-wide singleton semantics,  before a genuine JAXB implementation sets one.
 *     This allows malicious code to gain access to objects that it may otherwise
 *     not have access to, such as {@link java.awt.Frame#getFrames()} that belongs to
 *     another application running in the same JVM.
 *   </td>
 * </tr>
 * </tbody>
 * </table>
 *
 * @see java.security.BasicPermission
 * @see java.security.Permission
 * @see java.security.Permissions
 * @see java.security.PermissionCollection
 * @see java.lang.SecurityManager
 *
 * @author Joe Fialli
 * @since 1.7, JAXB 2.2
 */

/* code was borrowed originally from java.lang.RuntimePermission. */
public final class JAXBPermission extends BasicPermission {
    /**
     * Creates a new JAXBPermission with the specified name.
     *
     * @param name
     * The name of the JAXBPermission. As of 2.2 only "setDatatypeConverter"
     * is defined.
     */
    public JAXBPermission(String name) {
        super(name);
    }

    private static final long serialVersionUID = 1L;
}

⏎ javax/xml/bind/JAXBPermission.java

Or download all of them as a single archive file:

File name: jaxb-api-2.3.1-sources.jar
File size: 271123 bytes
Release date: 2018-10-10
Download 

⇒ Download JAXB 2.2 Specification and API JAR

⇐ Download JAXB 2.3 Specification and API JAR

⇑ JAXB (Java Architecture for XML Binding) API Specification

⇑⇑ FAQ for jaxb-*.jar - Java Architecture for XML Binding