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/transport/DefaultSocketFactoryImpl.java

/*
 * Copyright (c) 2004, 2013, 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.transport;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketException;
import java.net.ServerSocket;
import java.nio.channels.SocketChannel;
import java.nio.channels.ServerSocketChannel;
import java.security.PrivilegedAction;

import com.sun.corba.se.pept.transport.Acceptor;

import com.sun.corba.se.spi.orb.ORB;
import com.sun.corba.se.spi.transport.ORBSocketFactory;

import com.sun.corba.se.impl.orbutil.ORBConstants;

public class DefaultSocketFactoryImpl
    implements ORBSocketFactory
{
    private ORB orb;
    private static final boolean keepAlive;

    static {
        keepAlive = java.security.AccessController.doPrivileged(
            new PrivilegedAction<Boolean>() {
                @Override
                public Boolean run () {
                    String value =
                        System.getProperty("com.sun.CORBA.transport.enableTcpKeepAlive");
                    if (value != null)
                        return new Boolean(!"false".equalsIgnoreCase(value));

                    return Boolean.FALSE;
                }
            });
    }

    public void setORB(ORB orb)
    {
        this.orb = orb;
    }

    public ServerSocket createServerSocket(String type,
                                           InetSocketAddress inetSocketAddress)
        throws IOException
    {
        ServerSocketChannel serverSocketChannel = null;
        ServerSocket serverSocket = null;

        if (orb.getORBData().acceptorSocketType().equals(ORBConstants.SOCKETCHANNEL)) {
            serverSocketChannel = ServerSocketChannel.open();
            serverSocket = serverSocketChannel.socket();
        } else {
            serverSocket = new ServerSocket();
        }
        serverSocket.bind(inetSocketAddress);
        return serverSocket;
    }

    public Socket createSocket(String type,
                               InetSocketAddress inetSocketAddress)
        throws IOException
    {
        SocketChannel socketChannel = null;
        Socket socket = null;

        if (orb.getORBData().connectionSocketType().equals(ORBConstants.SOCKETCHANNEL)) {
            socketChannel = SocketChannel.open(inetSocketAddress);
            socket = socketChannel.socket();
        } else {
            socket = new Socket(inetSocketAddress.getHostName(),
                                inetSocketAddress.getPort());
        }

        // Disable Nagle's algorithm (i.e., always send immediately).
        socket.setTcpNoDelay(true);

        if (keepAlive)
            socket.setKeepAlive(true);

        return socket;
    }

    public void setAcceptedSocketOptions(Acceptor acceptor,
                                         ServerSocket serverSocket,
                                         Socket socket)
        throws SocketException
    {
        // Disable Nagle's algorithm (i.e., always send immediately).
        socket.setTcpNoDelay(true);
        if (keepAlive)
            socket.setKeepAlive(true);
    }
}

// End of file.

⏎ com/sun/corba/se/impl/transport/DefaultSocketFactoryImpl.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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