JRE 8 rt.jar is the JAR file for JRE 8 RT (Runtime) libraries. JRE (Java Runtime) 8 is the runtime environment included in JDK 8. JRE 8 rt.jar libraries are divided into 6 packages:

com.* - Internal Oracle and Sun Microsystems libraries
java.* - Standard Java API libraries.
javax.* - Extended Java API libraries.
jdk.* -  JDK supporting libraries.
org.* - Third party libraries.
sun.* - Old libraries developed by Sun Microsystems.

JAR File Information:

Directory of C:\fyicenter\jdk-1.8.0_191\jre\lib
      63,596,151 rt.jar

Here is the list of Java classes of the javax.* package in JRE 1.8.0_191 rt.jar. Java source codes are also provided.

⏎ javax/naming/ldap/ManageReferralControl.java

/*
 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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package javax.naming.ldap;

/**
 * Requests that referral and other special LDAP objects be manipulated
 * as normal LDAP objects. It enables the requestor to interrogate or
 * update such objects.
 *<p>
 * This class implements the LDAPv3 Request Control for ManageDsaIT
 * as defined in
 * <a href="http://www.ietf.org/rfc/rfc3296.txt">RFC 3296</a>.
 *
 * The control has no control value.
 *
 * @since 1.5
 * @author Vincent Ryan
 */
final public class ManageReferralControl extends BasicControl {

    /**
     * The ManageReferral control's assigned object identifier
     * is 2.16.840.1.113730.3.4.2.
     */
    public static final String OID = "2.16.840.1.113730.3.4.2";

    private static final long serialVersionUID = 3017756160149982566L;

    /**
     * Constructs a critical ManageReferral control.
     */
    public ManageReferralControl() {
        super(OID, true, null);
    }

    /**
     * Constructs a ManageReferral control.
     *
     * @param   criticality The control's criticality setting.
     */
    public ManageReferralControl(boolean criticality) {
        super(OID, criticality, null);
    }
}

⏎ javax/naming/ldap/ManageReferralControl.java

Or download all of them as a single archive file:

File name: jre-rt-javax-1.8.0_191-src.zip
File size: 5381005 bytes
Release date: 2018-10-28
Download 

⇒ JRE 8 rt.jar - org.* Package Source Code

⇐ JRE 8 rt.jar - java.* Package Source Code

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