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 org.* package in JRE 1.8.0_191 rt.jar. Java source codes are also provided.

⏎ org/omg/CORBA/DynArray.java

/*
 * Copyright (c) 1998, 2004, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 */


package org.omg.CORBA;


/** Represents a <tt>DynAny</tt> object associated
 *  with an array.
 * @deprecated Use the new <a href="../DynamicAny/DynArray.html">DynArray</a> instead
 */
@Deprecated
public interface DynArray extends org.omg.CORBA.Object, org.omg.CORBA.DynAny
{
    /**
     * Returns the value of all the elements of this array.
     *
     * @return the array of <code>Any</code> objects that is the value
         *         for this <code>DynArray</code> object
         * @see #set_elements
     */
    public org.omg.CORBA.Any[] get_elements();

    /**
     * Sets the value of this
     * <code>DynArray</code> object to the given array.
     *
     * @param value the array of <code>Any</code> objects
     * @exception InvalidSeq if the sequence is bad
         * @see #get_elements
     */
    public void set_elements(org.omg.CORBA.Any[] value)
        throws org.omg.CORBA.DynAnyPackage.InvalidSeq;
}

⏎ org/omg/CORBA/DynArray.java

Or download all of them as a single archive file:

File name: jre-rt-org-1.8.0_191-src.zip
File size: 951125 bytes
Release date: 2018-10-28
Download 

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

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

⇑ Download and Use JDK 8

⇑⇑ FAQ for JDK (Java Development Kit)