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/activation/NameServiceStartThread.java

/*
 * Copyright (c) 1999, 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.impl.activation;


import java.io.File;

import org.omg.CosNaming.NamingContext;
import com.sun.corba.se.spi.orb.ORB;
import com.sun.corba.se.impl.naming.pcosnaming.NameService;
import com.sun.corba.se.impl.orbutil.ORBConstants;

// REVISIT: After Merlin to see if we can get rid of this Thread and
// make the registration of PNameService for INS and BootStrap neat.
public class NameServiceStartThread extends java.lang.Thread
{
    private ORB orb;
    private File dbDir;

    public NameServiceStartThread( ORB theOrb, File theDir )
    {
        orb = theOrb;
        dbDir = theDir;
    }

    public void run( )
    {
        try {
            // start Name Service
            NameService nameService = new NameService(orb, dbDir );
            NamingContext rootContext = nameService.initialNamingContext();
            orb.register_initial_reference(
                ORBConstants.PERSISTENT_NAME_SERVICE_NAME, rootContext );
        } catch( Exception e ) {
            System.err.println(
                "NameService did not start successfully" );
            e.printStackTrace( );
        }
    }
}

⏎ com/sun/corba/se/impl/activation/NameServiceStartThread.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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