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

⏎ com/sun/corba/se/spi/transport/CorbaContactInfoListFactory.java

/*
 * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package com.sun.corba.se.spi.transport ;

import com.sun.corba.se.spi.transport.CorbaContactInfoList ;

import com.sun.corba.se.spi.ior.IOR ;
import com.sun.corba.se.spi.orb.ORB;

/** Interface used to create a ContactInfoList from an IOR, as required
 * for supporting CORBA semantics using the DCS framework.  This is a
 * natural correspondence since an IOR contains the information for
 * contacting one or more communication endpoints that can be used to
 * invoke a method on an object, along with the necessary information
 * on particular transports, encodings, and protocols to use.
 * Note that the actual implementation may support more than one
 * IOR in the case of GIOP with Location Forward messages.
 */
public interface CorbaContactInfoListFactory {
    /**
     * This will be called after the no-arg constructor before
     * create is called.
     */
    public void setORB(ORB orb);

    public CorbaContactInfoList create( IOR ior ) ;
}

⏎ com/sun/corba/se/spi/transport/CorbaContactInfoListFactory.java

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