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/internal/SnmpOutgoingRequest.java

/*
 * Copyright (c) 2001, 2006, 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.internal;

import java.net.InetAddress;

import com.sun.jmx.snmp.SnmpSecurityException;
import com.sun.jmx.snmp.SnmpTooBigException;
import com.sun.jmx.snmp.SnmpStatusException;
import com.sun.jmx.snmp.SnmpPdu;
import com.sun.jmx.snmp.SnmpMsg;

import com.sun.jmx.snmp.internal.SnmpSecurityCache;
import com.sun.jmx.snmp.SnmpUnknownSecModelException;
import com.sun.jmx.snmp.SnmpBadSecurityLevelException;
/**
 * <P> An <CODE>SnmpOutgoingRequest</CODE> handles the marshalling of the message to send.</P>
 * <p><b>This API is a Sun Microsystems internal API  and is subject
 * to change without notice.</b></p>
 * @since 1.5
 */

public interface SnmpOutgoingRequest {
    /**
     * Returns the cached security data used when marshalling the call as a secure one.
     * @return The cached data.
     */
    public SnmpSecurityCache getSecurityCache();
    /**
     * Encodes the message to send and puts the result in the specified byte array.
     *
     * @param outputBytes An array to receive the resulting encoding.
     *
     * @exception ArrayIndexOutOfBoundsException If the result does not fit
     *                                           into the specified array.
     */
    public int encodeMessage(byte[] outputBytes)
        throws SnmpStatusException,
               SnmpTooBigException, SnmpSecurityException,
               SnmpUnknownSecModelException, SnmpBadSecurityLevelException;
  /**
     * Initializes the message to send with the passed Pdu.
     * <P>
     * If the encoding length exceeds <CODE>maxDataLength</CODE>,
     * the method throws an exception.</P>
     *
     * @param p The PDU to be encoded.
     * @param maxDataLength The maximum length permitted for the data field.
     *
     * @exception SnmpStatusException If the specified PDU <CODE>p</CODE> is
     *    not valid.
     * @exception SnmpTooBigException If the resulting encoding does not fit
     *    into <CODE>maxDataLength</CODE> bytes.
     * @exception ArrayIndexOutOfBoundsException If the encoding exceeds
     *    <CODE>maxDataLength</CODE>.
     */
    public SnmpMsg encodeSnmpPdu(SnmpPdu p,
                                 int maxDataLength)
        throws SnmpStatusException, SnmpTooBigException;
    /**
     * Returns a stringified form of the message to send.
     * @return The message state string.
     */
    public String printMessage();
}

⏎ com/sun/jmx/snmp/internal/SnmpOutgoingRequest.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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