JDK 11 jdk.security.auth.jmod is the JMOD file for JDK 11 Security Auth module.

JDK 11 Security Auth module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\jdk.security.auth.jmod.

JDK 11 Security Auth module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 Security Auth module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.security.auth.

You can click and view the content of each source code file in the list below.

⏎ com/sun/security/auth/LdapPrincipal.java

/*
 * Copyright (c) 2006, 2013, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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package com.sun.security.auth;

import java.security.Principal;
import javax.naming.InvalidNameException;
import javax.naming.ldap.LdapName;

/**
 * A principal identified by a distinguished name as specified by
 * <a href="http://www.ietf.org/rfc/rfc2253.txt">RFC 2253</a>.
 *
 * <p>
 * After successful authentication, a user {@link java.security.Principal}
 * can be associated with a particular {@link javax.security.auth.Subject}
 * to augment that <code>Subject</code> with an additional identity.
 * Authorization decisions can then be based upon the
 * <code>Principal</code>s that are associated with a <code>Subject</code>.
 *
 * <p>
 * This class is immutable.
 *
 * @since 1.6
 */
public final class LdapPrincipal implements Principal, java.io.Serializable {

    private static final long serialVersionUID = 6820120005580754861L;

    /**
     * The principal's string name
     *
     * @serial
     */
    private final String nameString;

    /**
     * The principal's name
     *
     * @serial
     */
    private final LdapName name;

    /**
     * Creates an LDAP principal.
     *
     * @param name The principal's string distinguished name.
     * @throws InvalidNameException If a syntax violation is detected.
     * @exception NullPointerException If the <code>name</code> is
     * <code>null</code>.
     */
    public LdapPrincipal(String name) throws InvalidNameException {
        if (name == null) {
            throw new NullPointerException("null name is illegal");
        }
        this.name = getLdapName(name);
        nameString = name;
    }

    /**
     * Compares this principal to the specified object.
     *
     * @param object The object to compare this principal against.
     * @return true if they are equal; false otherwise.
     */
    public boolean equals(Object object) {
        if (this == object) {
            return true;
        }
        if (object instanceof LdapPrincipal) {
            try {

                return
                    name.equals(getLdapName(((LdapPrincipal)object).getName()));

            } catch (InvalidNameException e) {
                return false;
            }
        }
        return false;
    }

    /**
     * Computes the hash code for this principal.
     *
     * @return The principal's hash code.
     */
    public int hashCode() {
        return name.hashCode();
    }

    /**
     * Returns the name originally used to create this principal.
     *
     * @return The principal's string name.
     */
    public String getName() {
        return nameString;
    }

    /**
     * Creates a string representation of this principal's name in the format
     * defined by <a href="http://www.ietf.org/rfc/rfc2253.txt">RFC 2253</a>.
     * If the name has zero components an empty string is returned.
     *
     * @return The principal's string name.
     */
    public String toString() {
        return name.toString();
    }

    // Create an LdapName object from a string distinguished name.
    private LdapName getLdapName(String name) throws InvalidNameException {
        return new LdapName(name);
    }
}

⏎ com/sun/security/auth/LdapPrincipal.java

Or download all of them as a single archive file:

File name: jdk.security.auth-11.0.1-src.zip
File size: 65197 bytes
Release date: 2018-11-04
Download 

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