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/PortableInterceptor/IORInterceptorOperations.java

package org.omg.PortableInterceptor;


/**
* org/omg/PortableInterceptor/IORInterceptorOperations.java .
* Generated by the IDL-to-Java compiler (portable), version "3.2"
* from c:/re/workspace/8-2-build-windows-amd64-cygwin/jdk8u191/11896/corba/src/share/classes/org/omg/PortableInterceptor/Interceptors.idl
* Saturday, October 6, 2018 9:30:42 AM PDT
*/


/**
   * Interceptor used to establish tagged components in the profiles within 
   * an IOR.
   * <p>
   * In some cases, a portable ORB service implementation may need to add 
   * information describing the server's or object's ORB service related 
   * capabilities to object references in order to enable the ORB service 
   * implementation in the client to function properly. 
   * <p>
   * This is supported through the <code>IORInterceptor</code> and 
   * <code>IORInfo</code> interfaces. 
   *
   * @see IORInfo
   */
public interface IORInterceptorOperations  extends org.omg.PortableInterceptor.InterceptorOperations
{

  /**
     * A server side ORB calls the <code>establish_components</code> 
     * operation on all registered <code>IORInterceptor</code> instances 
     * when it is assembling the list of components that will be included 
     * in the profile or profiles of an object reference. This operation 
     * is not necessarily called for each individual object reference. 
     * In the case of the POA, this operation is called each time POA::create_POA
     * is called.  In any case, <code>establish_components</code> is 
     * guaranteed to be called at least once for each distinct set of 
     * server policies. 
     * <p>
     * An implementation of <code>establish_components</code> must not 
     * throw exceptions. If it does, the ORB shall ignore the exception 
     * and proceed to call the next IOR Interceptor's 
     * <code>establish_components</code> operation. 
     *
     * @param info The <code>IORInfo</code> instance used by the ORB 
     *     service to query applicable policies and add components to be 
     *     included in the generated IORs.
     */
  void establish_components (org.omg.PortableInterceptor.IORInfo info);
} // interface IORInterceptorOperations

⏎ org/omg/PortableInterceptor/IORInterceptorOperations.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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