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/fsm/GuardedAction.java

/*
 * Copyright (c) 2002, 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.fsm ;

import com.sun.corba.se.spi.orbutil.fsm.Guard ;
import com.sun.corba.se.spi.orbutil.fsm.GuardBase ;
import com.sun.corba.se.spi.orbutil.fsm.Input ;
import com.sun.corba.se.spi.orbutil.fsm.Action ;
import com.sun.corba.se.spi.orbutil.fsm.State ;
import com.sun.corba.se.spi.orbutil.fsm.FSM ;

public class GuardedAction {
    private static Guard trueGuard = new GuardBase( "true" ) {
        public Guard.Result evaluate( FSM fsm, Input in )
        {
            return Guard.Result.ENABLED ;
        }
    } ;

    private Guard guard ;
    private Action action ;
    private State nextState ;

    public GuardedAction( Action action, State nextState )
    {
        this.guard = trueGuard ;
        this.action = action ;
        this.nextState = nextState ;
    }

    public GuardedAction( Guard guard, Action action, State nextState )
    {
        this.guard = guard ;
        this.action = action ;
        this.nextState = nextState ;
    }

    public String toString()
    {
        return "GuardedAction[action=" + action + " guard=" + guard +
            " nextState=" + nextState + "]" ;
    }

    public Action getAction() { return action ; }
    public Guard getGuard() { return guard ; }
    public State getNextState() { return nextState ; }
}

⏎ com/sun/corba/se/impl/orbutil/fsm/GuardedAction.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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