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/spi/ior/IdentifiableContainerBase.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.spi.ior;

import java.util.List;
import java.util.ArrayList;
import java.util.Iterator;

import com.sun.corba.se.impl.ior.FreezableList ;

import com.sun.corba.se.spi.ior.TaggedComponent ;
import com.sun.corba.se.spi.ior.Identifiable ;

/** Convenience class for defining objects that contain lists of Identifiables.
 * Mainly implements iteratorById.  Also note that the constructor creates the
 * list, which here is always an ArrayList, as this is much more efficient overall
 * for short lists.
 * @author  Ken Cavanaugh
 */
public class IdentifiableContainerBase extends FreezableList
{
    /** Create this class with an empty list of identifiables.
     * The current implementation uses an ArrayList.
     */
    public IdentifiableContainerBase()
    {
        super( new ArrayList() ) ;
    }

    /** Return an iterator which iterates over all contained Identifiables
     * with type given by id.
     */
    public Iterator iteratorById( final int id)
    {
        return new Iterator() {
            Iterator iter = IdentifiableContainerBase.this.iterator() ;
            Object current = advance() ;

            private Object advance()
            {
                while (iter.hasNext()) {
                    Identifiable ide = (Identifiable)(iter.next()) ;
                    if (ide.getId() == id)
                        return ide ;
                }

                return null ;
            }

            public boolean hasNext()
            {
                return current != null ;
            }

            public Object next()
            {
                Object result = current ;
                current = advance() ;
                return result ;
            }

            public void remove()
            {
                iter.remove() ;
            }
        } ;
    }
}

⏎ com/sun/corba/se/spi/ior/IdentifiableContainerBase.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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