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/monitoring/MonitoredObjectImpl.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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 *
 *
 *
 *
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 *
 *
 *
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 *
 *
 *
 */

package com.sun.corba.se.impl.monitoring;

import java.util.Map;
import java.util.HashMap;
import java.util.Collection;
import java.util.Iterator;

import com.sun.corba.se.spi.monitoring.MonitoredObject;
import com.sun.corba.se.spi.monitoring.MonitoredAttribute;

public class MonitoredObjectImpl implements MonitoredObject {
    private final String name;
    private final String description;

    // List of all child Monitored Objects
    private Map children = new HashMap();

    // All the Attributes of this Monitored Object instance
    private Map monitoredAttributes = new HashMap();

    private MonitoredObject parent = null;


    // Constructor
    MonitoredObjectImpl( String name, String description ) {
        this.name = name;
        this.description = description;
    }

    public MonitoredObject getChild( String name ) {
        synchronized( this ) {
            return (MonitoredObject) children.get( name );
        }
    }

    public Collection getChildren( ) {
        synchronized( this ) {
            return children.values();
        }
    }

    public void addChild( MonitoredObject m ) {
        if (m != null){
            synchronized( this ) {
                children.put( m.getName(), m);
                m.setParent( this );
            }
        }
    }

    public void removeChild( String name ) {
        if (name != null){
            synchronized( this ) {
                children.remove( name );
            }
        }
    }

    public synchronized MonitoredObject getParent( ) {
       return parent;
    }

    public synchronized void setParent( MonitoredObject p ) {
        parent = p;
    }

    public MonitoredAttribute getAttribute( String name ) {
        synchronized( this ) {
            return (MonitoredAttribute) monitoredAttributes.get( name );
        }
    }

    public Collection getAttributes( ) {
        synchronized( this ) {
            return monitoredAttributes.values();
        }
    }

    public void addAttribute( MonitoredAttribute value ) {
        if (value != null) {
            synchronized( this ) {
                monitoredAttributes.put( value.getName(), value );
            }
        }
    }

    public void removeAttribute( String name ) {
        if (name != null) {
            synchronized( this ) {
                monitoredAttributes.remove( name );
            }
        }
    }

    /**
     * calls clearState() on all the registered children MonitoredObjects and
     * MonitoredAttributes.
     */
    public void clearState( ) {
        synchronized( this ) {
            Iterator i = monitoredAttributes.values().iterator();
            // First call clearState on all the local attributes
            while( i.hasNext( ) ) {
                ((MonitoredAttribute)i.next()).clearState();
            }
            i = children.values().iterator();
            // next call clearState on all the children MonitoredObjects
            while( i.hasNext() ) {
                ((MonitoredObject)i.next()).clearState();
           }
        }
    }

    public String getName( ) {
        return name;
    }

    public String getDescription( ) {
        return description;
    }
}

⏎ com/sun/corba/se/impl/monitoring/MonitoredObjectImpl.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
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