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/servicecontext/UEInfoServiceContext.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.corba.se.spi.servicecontext;

import java.io.Serializable ;
import org.omg.CORBA.SystemException;
import org.omg.CORBA.CompletionStatus;
import org.omg.CORBA.UNKNOWN;
import org.omg.CORBA_2_3.portable.InputStream;
import org.omg.CORBA_2_3.portable.OutputStream;
import com.sun.corba.se.spi.ior.iiop.GIOPVersion;
import com.sun.corba.se.spi.servicecontext.ServiceContext ;

public class UEInfoServiceContext extends ServiceContext {
    public UEInfoServiceContext( Throwable ex )
    {
        unknown = ex ;
    }

    public UEInfoServiceContext(InputStream is, GIOPVersion gv)
    {
        super(is, gv) ;

        try {
            unknown = (Throwable) in.read_value() ;
        } catch (ThreadDeath d) {
            throw d ;
        } catch (Throwable e) {
            unknown = new UNKNOWN( 0, CompletionStatus.COMPLETED_MAYBE ) ;
        }
    }

    // Required SERVICE_CONTEXT_ID and getId definitions
    public static final int SERVICE_CONTEXT_ID = 9 ;
    public int getId() { return SERVICE_CONTEXT_ID ; }

    public void writeData( OutputStream os ) throws SystemException
    {
        os.write_value( (Serializable)unknown ) ;
    }

    public Throwable getUE() { return unknown ; }

    private Throwable unknown = null ;

    public String toString()
    {
        return "UEInfoServiceContext[ unknown=" + unknown.toString() + " ]" ;
    }
}

⏎ com/sun/corba/se/spi/servicecontext/UEInfoServiceContext.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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