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/snmp/ServiceName.java

/*
 * Copyright (c) 1999, 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.jmx.snmp;

/**
 * Used for storing default values used by SNMP Runtime services.
 * <p><b>This API is an Oracle Corporation internal API  and is subject
 * to change without notice.</b></p>
 */
public class ServiceName {

    // private constructor defined to "hide" the default public constructor
    private ServiceName() {
    }

    /**
     * The object name of the MBeanServer delegate object
     * <BR>
     * The value is <CODE>JMImplementation:type=MBeanServerDelegate</CODE>.
     */
    public static final String DELEGATE = "JMImplementation:type=MBeanServerDelegate" ;

    /**
     * The default key properties for registering the class loader of the MLet service.
     * <BR>
     * The value is <CODE>type=MLet</CODE>.
     */
    public static final String MLET = "type=MLet";

    /**
     * The default domain.
     * <BR>
     * The value is <CODE>DefaultDomain</CODE>.
     */
    public static final String DOMAIN = "DefaultDomain";

    /**
     * The default port for the RMI connector.
     * <BR>
     * The value is <CODE>1099</CODE>.
     */
    public static final int RMI_CONNECTOR_PORT = 1099 ;

    /**
     * The default key properties for the RMI connector.
     * <BR>
     * The value is <CODE>name=RmiConnectorServer</CODE>.
     */
    public static final String RMI_CONNECTOR_SERVER = "name=RmiConnectorServer" ;

    /**
     * The default port for the SNMP adaptor.
     * <BR>
     * The value is <CODE>161</CODE>.
     */
    public static final int SNMP_ADAPTOR_PORT = 161 ;

    /**
     * The default key properties for the SNMP protocol adaptor.
     * <BR>
     * The value is <CODE>name=SnmpAdaptorServer</CODE>.
     */
    public static final String SNMP_ADAPTOR_SERVER = "name=SnmpAdaptorServer" ;

    /**
     * The default port for the HTTP connector.
     * <BR>
     * The value is <CODE>8081</CODE>.
     */
    public static final int HTTP_CONNECTOR_PORT = 8081 ;

    /**
     * The default key properties for the HTTP connector.
     * <BR>
     * The value is <CODE>name=HttpConnectorServer</CODE>.
     */
    public static final String HTTP_CONNECTOR_SERVER = "name=HttpConnectorServer" ;

    /**
     * The default port for the HTTPS connector.
     * <BR>
     * The value is <CODE>8084</CODE>.
     */
    public static final int HTTPS_CONNECTOR_PORT = 8084 ;

    /**
     * The default key properties for the HTTPS connector.
     * <BR>
     * The value is <CODE>name=HttpsConnectorServer</CODE>.
     */
    public static final String HTTPS_CONNECTOR_SERVER = "name=HttpsConnectorServer" ;

    /**
     * The default port for the HTML adaptor.
     * <BR>
     * The value is <CODE>8082</CODE>.
     */
    public static final int HTML_ADAPTOR_PORT = 8082 ;

    /**
     * The default key properties for the HTML protocol adaptor.
     * <BR>
     * The value is <CODE>name=HtmlAdaptorServer</CODE>.
     */
    public static final String HTML_ADAPTOR_SERVER = "name=HtmlAdaptorServer" ;

    /**
     * The name of the JMX specification implemented by this product.
     * <BR>
     * The value is <CODE>Java Management Extensions</CODE>.
     */
    public static final String JMX_SPEC_NAME = "Java Management Extensions";

    /**
     * The version of the JMX specification implemented by this product.
     * <BR>
     * The value is <CODE>1.0 Final Release</CODE>.
     */
    public static final String JMX_SPEC_VERSION = "1.2 Maintenance Release";

    /**
     * The vendor of the JMX specification implemented by this product.
     * <BR>
     * The value is <CODE>Oracle Corporation</CODE>.
     */
    public static final String JMX_SPEC_VENDOR = "Oracle Corporation";

    /**
     * The name of the vendor of this product implementing the  JMX specification.
     * <BR>
     * The value is <CODE>Oracle Corporation</CODE>.
     */
    public static final String JMX_IMPL_VENDOR = "Oracle Corporation";

    /**
      * The build number of the current product version, of the form <CODE>rXX</CODE>.
      */
    public static final String BUILD_NUMBER = "r01";

    /**
     * The version of this product implementing the  JMX specification.
     * <BR>
     * The value is <CODE>5.1_rXX</CODE>, where <CODE>rXX</CODE> is the <CODE>BUILD_NUMBER</CODE> .
     */
    public static final String JMX_IMPL_VERSION = "5.1_" + BUILD_NUMBER;

}

⏎ com/sun/jmx/snmp/ServiceName.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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