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/orb/DataCollectorFactory.java

/*
 * Copyright (c) 2002, 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.impl.orb ;

import java.applet.Applet ;
import java.util.Properties ;
import java.net.URL ;

import com.sun.corba.se.spi.orb.DataCollector ;

public abstract class DataCollectorFactory {
    private DataCollectorFactory() {}

    public static DataCollector create( Applet app, Properties props,
        String localHostName )
    {
        String appletHost = localHostName ;

        if (app != null) {
            URL appletCodeBase = app.getCodeBase() ;

            if (appletCodeBase != null)
                appletHost = appletCodeBase.getHost() ;
        }

        return new AppletDataCollector( app, props, localHostName,
            appletHost ) ;
    }

    public static DataCollector create( String[] args, Properties props,
        String localHostName )
    {
        return new NormalDataCollector( args, props, localHostName,
            localHostName ) ;
    }

    public static DataCollector create( Properties props,
        String localHostName )
    {
        return new PropertyOnlyDataCollector( props, localHostName,
            localHostName ) ;
    }
}

⏎ com/sun/corba/se/impl/orb/DataCollectorFactory.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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