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

⏎ java/io/EOFException.java

/*
 * Copyright (c) 1995, 2013, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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package java.io;

/**
 * Signals that an end of file or end of stream has been reached
 * unexpectedly during input.
 * <p>
 * This exception is mainly used by data input streams to signal end of
 * stream. Note that many other input operations return a special value on
 * end of stream rather than throwing an exception.
 *
 * @author  Frank Yellin
 * @see     java.io.DataInputStream
 * @see     java.io.IOException
 * @since   JDK1.0
 */
public
class EOFException extends IOException {
    private static final long serialVersionUID = 6433858223774886977L;

    /**
     * Constructs an <code>EOFException</code> with <code>null</code>
     * as its error detail message.
     */
    public EOFException() {
        super();
    }

    /**
     * Constructs an <code>EOFException</code> with the specified detail
     * message. The string <code>s</code> may later be retrieved by the
     * <code>{@link java.lang.Throwable#getMessage}</code> method of class
     * <code>java.lang.Throwable</code>.
     *
     * @param   s   the detail message.
     */
    public EOFException(String s) {
        super(s);
    }
}

⏎ java/io/EOFException.java

Or download all of them as a single archive file:

File name: jre-rt-java-1.8.0_191-src.zip
File size: 6664831 bytes
Release date: 2018-10-28
Download 

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