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/orbutil/graph/NodeData.java

/*
 * Copyright (c) 2003, 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.orbutil.graph ;

/** Data about a node in a graph.
 */
public class NodeData
{
    private boolean visited ;
    private boolean root ;

    public NodeData()
    {
        clear() ;
    }

    public void clear()
    {
        this.visited = false ;
        this.root = true ;
    }

    /** Return whether this node has been visited in a traversal.
     * Note that we only support a single traversal at a time.
     */
    boolean isVisited()
    {
        return visited ;
    }

    void visited()
    {
        visited = true ;
    }

    /** Return whether this node is a root.
     */
    boolean isRoot()
    {
        return root ;
    }

    void notRoot()
    {
        root = false ;
    }
}

⏎ com/sun/corba/se/impl/orbutil/graph/NodeData.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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