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/encoding/MarshalOutputStream.java

/*
 * Copyright (c) 1998, 2003, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 */
package com.sun.corba.se.impl.encoding;

import java.io.IOException;

import org.omg.CORBA.TypeCode;
import org.omg.CORBA.Principal;
import org.omg.CORBA.Any;

import org.omg.CORBA.portable.InputStream;

public interface MarshalOutputStream {

    public InputStream create_input_stream();

    public void write_boolean(boolean value);
    public void write_char(char value);
    public void write_wchar(char value);
    public void write_octet(byte value);
    public void write_short(short value);
    public void write_ushort(short value);
    public void write_long(int value);
    public void write_ulong(int value);
    public void write_longlong(long value);
    public void write_ulonglong(long value);
    public void write_float(float value);
    public void write_double(double value);
    public void write_string(String value);
    public void write_wstring(String value);

    public void write_boolean_array(boolean[] value, int offset, int length);
    public void write_char_array(char[] value, int offset, int length);
    public void write_wchar_array(char[] value, int offset, int length);
    public void write_octet_array(byte[] value, int offset, int length);
    public void write_short_array(short[] value, int offset, int length);
    public void write_ushort_array(short[] value, int offset, int length);
    public void write_long_array(int[] value, int offset, int length);
    public void write_ulong_array(int[] value, int offset, int length);
    public void write_longlong_array(long[] value, int offset, int length);
    public void write_ulonglong_array(long[] value, int offset, int length);
    public void write_float_array(float[] value, int offset, int length);
    public void write_double_array(double[] value, int offset, int length);

    public void write_Object(org.omg.CORBA.Object value);
    public void write_TypeCode(TypeCode value);
    public void write_any(Any value);
    public void write_Principal(Principal value);


    /*
     * The methods necessary to support RMI
     */
    public void write_value(java.io.Serializable value);
    public void start_block();
    public void end_block();

    /*
     * Additional Methods
     */

    public void   putEndian();
    public void   writeTo(java.io.OutputStream s)
        throws IOException;

    public byte[] toByteArray();
}

⏎ com/sun/corba/se/impl/encoding/MarshalOutputStream.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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