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/jmx/mbeanserver/ModifiableClassLoaderRepository.java

/*
 * Copyright (c) 2002, 2007, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package com.sun.jmx.mbeanserver;


// JMX import
import javax.management.ObjectName;
import javax.management.loading.ClassLoaderRepository;

/**
 * This interface keeps the list of Class Loaders registered in the
 * MBean Server.
 * It provides the necessary methods to load classes using the
 * registered Class Loaders, and to add/remove class loaders from the
 * list.
 *
 * @since 1.5
 */
public interface ModifiableClassLoaderRepository
    extends ClassLoaderRepository {

    /**
     * Add an anonymous ClassLoader to the repository.
     **/
    public void addClassLoader(ClassLoader loader);

    /**
     * Remove the specified ClassLoader to the repository.
     * The class loader may or may not be anonymous.
     **/
    public void removeClassLoader(ClassLoader loader);

    /**
     * Add a named ClassLoader to the repository.
     **/
    public void addClassLoader(ObjectName name, ClassLoader loader);

    /**
     * Remove a named ClassLoader from the repository.
     **/
    public void removeClassLoader(ObjectName name);

    /**
     * Get a named ClassLoader from the repository.
     **/
    public ClassLoader getClassLoader(ObjectName name);
}

⏎ com/sun/jmx/mbeanserver/ModifiableClassLoaderRepository.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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