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 javax.* package in JRE 1.8.0_191 rt.jar. Java source codes are also provided.

⏎ javax/print/event/PrintJobEvent.java

/*
 * Copyright (c) 2000, 2003, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
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 *
 *
 *
 *
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 *
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 *
 *
 */

package javax.print.event;

import javax.print.DocPrintJob;

/**
 *
 * Class <code>PrintJobEvent</code> encapsulates common events a print job
 * reports to let a listener know of progress in the processing of the
 * {@link DocPrintJob}.
 *
 */

public class PrintJobEvent extends PrintEvent {

   private static final long serialVersionUID = -1711656903622072997L;

   private int reason;

   /**
    * The job was canceled by the {@link javax.print.PrintService PrintService}.
    */
   public static final int JOB_CANCELED   = 101;

   /**
    * The document cis completely printed.
    */
   public static final int JOB_COMPLETE       = 102;

   /**
    * The print service reports that the job cannot be completed.
    * The application must resubmit the job.
    */

   public static final int JOB_FAILED         = 103;

   /**
    * The print service indicates that a - possibly transient - problem
    * may require external intervention before the print service can
    * continue.  One example of an event that can
    * generate this message is when the printer runs out of paper.
    */
   public static final int REQUIRES_ATTENTION = 104;

   /**
    * Not all print services may be capable of delivering interesting
    * events, or even telling when a job is complete. This message indicates
    * the print job has no further information or communication
    * with the print service. This message should always be delivered
    * if a terminal event (completed/failed/canceled) is not delivered.
    * For example, if messages such as JOB_COMPLETE have NOT been received
    * before receiving this message, the only inference that should be drawn
    * is that the print service does not support delivering such an event.
    */
   public static final int NO_MORE_EVENTS    = 105;

   /**
    * The job is not necessarily printed yet, but the data has been transferred
    * successfully from the client to the print service. The client may
    * free data resources.
    */
   public static final int DATA_TRANSFER_COMPLETE    = 106;

   /**
     * Constructs a <code>PrintJobEvent</code> object.
     *
     * @param source  a <code>DocPrintJob</code> object
     * @param reason  an int specifying the reason.
     * @throws IllegalArgumentException if <code>source</code> is
     *         <code>null</code>.
     */

    public PrintJobEvent( DocPrintJob source, int reason) {

        super(source);
        this.reason = reason;
   }

    /**
     * Gets the reason for this event.
     * @return  reason int.
     */
    public int getPrintEventType() {
        return reason;
    }

    /**
     * Determines the <code>DocPrintJob</code> to which this print job
     * event pertains.
     *
     * @return  the <code>DocPrintJob</code> object that represents the
     *          print job that reports the events encapsulated by this
     *          <code>PrintJobEvent</code>.
     *
     */
    public DocPrintJob getPrintJob() {
        return (DocPrintJob) getSource();
    }


}

⏎ javax/print/event/PrintJobEvent.java

Or download all of them as a single archive file:

File name: jre-rt-javax-1.8.0_191-src.zip
File size: 5381005 bytes
Release date: 2018-10-28
Download 

⇒ JRE 8 rt.jar - org.* Package Source Code

⇐ JRE 8 rt.jar - java.* Package Source Code

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