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/corba/se/impl/ior/ObjectAdapterIdBase.java

/*
 * Copyright (c) 2000, 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.corba.se.impl.ior ;

import java.util.Iterator ;

import org.omg.CORBA_2_3.portable.OutputStream ;

import com.sun.corba.se.spi.ior.ObjectAdapterId ;

abstract class ObjectAdapterIdBase implements ObjectAdapterId {
    public boolean equals( Object other )
    {
        if (!(other instanceof ObjectAdapterId))
            return false ;

        ObjectAdapterId theOther = (ObjectAdapterId)other ;

        Iterator iter1 = iterator() ;
        Iterator iter2 = theOther.iterator() ;

        while (iter1.hasNext() && iter2.hasNext()) {
            String str1 = (String)(iter1.next()) ;
            String str2 = (String)(iter2.next()) ;

            if (!str1.equals( str2 ))
                return false ;
        }

        return iter1.hasNext() == iter2.hasNext() ;
    }

    public int hashCode()
    {
        int result = 17 ;
        Iterator iter = iterator() ;
        while (iter.hasNext()) {
            String str = (String)(iter.next()) ;
            result = 37*result + str.hashCode() ;
        }
        return result ;
    }

    public String toString()
    {
        StringBuffer buff = new StringBuffer() ;
        buff.append( "ObjectAdapterID[" ) ;
        Iterator iter = iterator() ;
        boolean first = true ;
        while (iter.hasNext()) {
            String str = (String)(iter.next()) ;

            if (first)
                first = false ;
            else
                buff.append( "/" ) ;

            buff.append( str ) ;
        }

        buff.append( "]" ) ;

        return buff.toString() ;
    }

    public void write( OutputStream os )
    {
        os.write_long( getNumLevels() ) ;
        Iterator iter = iterator() ;
        while (iter.hasNext()) {
            String str = (String)(iter.next()) ;
            os.write_string( str ) ;
        }
    }
}

⏎ com/sun/corba/se/impl/ior/ObjectAdapterIdBase.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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