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/impl/legacy/connection/EndPointInfoImpl.java

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

package com.sun.corba.se.impl.legacy.connection;

import com.sun.corba.se.spi.legacy.connection.LegacyServerSocketEndPointInfo;
import com.sun.corba.se.spi.transport.SocketInfo;

public class EndPointInfoImpl
    implements
        SocketInfo,
        LegacyServerSocketEndPointInfo
{

    protected String type;
    protected String hostname;
    protected int port;
    protected int locatorPort;
    protected String name;

    public EndPointInfoImpl(String type, int port, String hostname) {
        this.type = type;
        this.port = port;
        this.hostname = hostname;
        this.locatorPort = -1;
        this.name = LegacyServerSocketEndPointInfo.NO_NAME;
    }

    public String getType() {
        return type;
    }

    public String getHost() {
        return hostname;
    }

    public String getHostName() {
        return hostname;
    }

    public int getPort() {
        return port;
    }

    public int getLocatorPort ()
    {
        return locatorPort;
    }

    public void setLocatorPort (int port)
    {
        locatorPort = port;
    }

    public String getName()
    {
        return name;
    }

    public int hashCode() {
        return type.hashCode() ^ hostname.hashCode() ^ port;
    }

    public boolean equals(Object obj) {
        if (!(obj instanceof EndPointInfoImpl)) {
            return false;
        }
        EndPointInfoImpl other = (EndPointInfoImpl)obj;
        if (type == null) {
            if (other.type != null) {
                return false;
            }
        } else if (!type.equals(other.type)) {
            return false;
        }
        if (port != other.port) {
            return false;
        }
        if (!hostname.equals(other.hostname)) {
            return false;
        }
        return true;
    }

    public String toString ()
    {
        return
            type + " " +
            name + " " +
            hostname + " " +
            port;
    }
}

// End of file.

⏎ com/sun/corba/se/impl/legacy/connection/EndPointInfoImpl.java

Or download all of them as a single archive file:

File name: jre-rt-com-1.8.0_191-src.zip
File size: 8099783 bytes
Release date: 2018-10-28
Download 

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