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/portable/ValueFactory.java

/*
 * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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/*
 * Licensed Materials - Property of IBM
 * RMI-IIOP v1.0
 * Copyright IBM Corp. 1998 1999  All Rights Reserved
 *
 */

package org.omg.CORBA.portable;
import java.io.Serializable;

/**
 * The ValueFactory interface is the native mapping for the IDL
 * type CORBA::ValueFactory. The read_value() method is called by
 * the ORB runtime while in the process of unmarshaling a value type.
 * A user shall implement this method as part of implementing a type
 * specific value factory. In the implementation, the user shall call
 * is.read_value(java.io.Serializable) with a uninitialized valuetype
 * to use for unmarshaling. The value returned by the stream is
 * the same value passed in, with all the data unmarshaled.
 * @see org.omg.CORBA_2_3.ORB
 */

public interface ValueFactory {
    /**
     * Is called by
     * the ORB runtime while in the process of unmarshaling a value type.
     * A user shall implement this method as part of implementing a type
     * specific value factory.
     * @param is an InputStream object--from which the value will be read.
     * @return a Serializable object--the value read off of "is" Input stream.
     */
    Serializable read_value(org.omg.CORBA_2_3.portable.InputStream is);
}

⏎ org/omg/CORBA/portable/ValueFactory.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

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