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/ObjectInputStreamWithLoader.java

/*
 * Copyright (c) 1999, 2013, 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;

// Java import
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectStreamClass;
import sun.reflect.misc.ReflectUtil;

/**
 * This class deserializes an object in the context of a specific class loader.
 *
 * @since 1.5
 */
class ObjectInputStreamWithLoader extends ObjectInputStream {


    private ClassLoader loader;


    /**
     * @exception IOException Signals that an I/O exception of some
     * sort has occurred.
     * @exception StreamCorruptedException The object stream is corrupt.
     */
    public ObjectInputStreamWithLoader(InputStream in, ClassLoader theLoader)
            throws IOException {
        super(in);
        this.loader = theLoader;
    }

    @Override
    protected Class<?> resolveClass(ObjectStreamClass aClass)
            throws IOException, ClassNotFoundException {
        if (loader == null) {
            return super.resolveClass(aClass);
        } else {
            String name = aClass.getName();
            ReflectUtil.checkPackageAccess(name);
            // Query the class loader ...
            return Class.forName(name, false, loader);
        }
    }
}

⏎ com/sun/jmx/mbeanserver/ObjectInputStreamWithLoader.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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