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/IPAcl/PermissionImpl.java

/*
 * Copyright (c) 1997, 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.snmp.IPAcl;



import java.io.Serializable;


/**
 * Permission is represented as a String.
 *
 * @see java.security.acl.Permission
 */

class PermissionImpl implements java.security.acl.Permission, Serializable {
  private static final long serialVersionUID = 4478110422746916589L;

  private String perm = null;

  /**
   * Constructs a permission.
   *
   * @param s the string representing the permission.
   */
  public PermissionImpl(String s) {
        perm = s;
  }

  public int hashCode() {
        return super.hashCode();
  }

  /**
   * Returns true if the object passed matches the permission represented in.
   *
   * @param p the Permission object to compare with.
   * @return true if the Permission objects are equal, false otherwise.
   */
  public boolean equals(Object p){
        if (p instanceof PermissionImpl){
          return perm.equals(((PermissionImpl)p).getString());
        } else {
          return false;
        }
  }

  /**
   * Prints a string representation of this permission.
   *
   * @return a string representation of this permission.
   */
  public String toString(){
        return perm;
  }

  /**
   * Prints the permission.
   *
   * @return a string representation of this permission.
   */
  public String getString(){
        return perm;
  }
}

⏎ com/sun/jmx/snmp/IPAcl/PermissionImpl.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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