JDK 1.1 source code directory contains Java source code for JDK 1.1 core classes: "C:\fyicenter\jdk-1.1.8\src".

Here is the list of Java classes of the JDK 1.1 source code:

⏎ java/rmi/server/SocketSecurityException.java

/*
 * @(#)SocketSecurityException.java	1.5 01/12/10
 *
 * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package java.rmi.server;

public class SocketSecurityException extends ExportException {

    private static final long serialVersionUID = -7622072999407781979L;

    /**
     * Create A remote exception with the specified string
     */
    public SocketSecurityException(String s) {
	super(s);
    }

    /**
     * Create A remote exception with the specified string, and the
     * exception specified.
     */
    public SocketSecurityException(String s, Exception ex) {
	super(s, ex);
    }

}

⏎ java/rmi/server/SocketSecurityException.java

Or download all of them as a single archive file:

File name: jdk-1.1.8-src.zip
File size: 1574187 bytes
Release date: 2018-11-16
Download 

⇒ Backup JDK 1.1 Installation Directory

⇐ JDK 1.1 classes.zip - Java Core Classes

⇑ Download and Review JDK 1.1

⇑⇑ FAQ for JDK (Java Development Kit)