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/legacy/connection/LegacyServerSocketEndPointInfo.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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package com.sun.corba.se.spi.legacy.connection;

/**
 * LegacyServerSocketEndPointInfo is an abstraction of a port.
 */
public interface LegacyServerSocketEndPointInfo
{
    /**
     * e.g.: "CLEAR_TEXT", "SSL", ...
     */
    public String getType();


    /**
     * Get the host name of this end point. Subcontracts must use this
     * instead of InetAddress.getHostName() because this would take
     * into account the value of the ORBServerHost property.
     */
    public String getHostName();

    public int getPort();

    /**
     * The ORBD's proxy port of this end point.
     * Note: Pre-ORT "port-exchange" model.
     */
    public int getLocatorPort();
    public void setLocatorPort(int port);

    // NAME is used while we still have a "port-exchange" ORBD
    // to get what used to be called "default" or "bootstrap" endpoints.

    public static final String DEFAULT_ENDPOINT = "DEFAULT_ENDPOINT";
    public static final String BOOT_NAMING = "BOOT_NAMING";
    public static final String NO_NAME = "NO_NAME";

    public String getName();
}

// End of file.

⏎ com/sun/corba/se/spi/legacy/connection/LegacyServerSocketEndPointInfo.java

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