Java(TM) 2 SDK, Standard Edition Version 1.4.0

* Disclaimer - this text represents the contents of the README.txt file included in Java 2 SDK, Standard Edition, 1.4.0_01 As these contents are dated, some links may no longer be valid.

For a more extensive HTML version of this file, see README.html.


  • Introduction
  • Release Notes
  • Bug Reports and Feedback
  • Java 2 SDK Documentation
  • Redistribution
  • Web Pages


Thank you for downloading this release of the Java(TM) 2 SDK, Standard Edition. The Java 2 SDK is a development environment for building applications, applets, and components that can be deployed on the Java platform.

The Java 2 SDK software includes tools useful for developing and testing programs written in the Java programming language and running on the Java platform. These tools are designed to be used from the command line. Except for appletviewer, these tools do not provide a graphical user interface.

Release Notes

See the Release Notes on the Java Software web site for additional information pertaining to this release.

The on-line release notes will be updated as needed, so you should check it occasionally for the latest information.

Bug Reports and Feedback

To directly submit a bug or request a feature, fill out this form:

Java 2 SDK Documentation

The on-line Java 2 SDK Documentation contains API specifications, feature descriptions, developer guides, tool reference pages, demos, and links to related information. It is located at

The Java 2 SDK documentation is also available in a download bundle which you can install locally on your machine. See the Java 2 SDK download page:


The term "vendors" used here refers to licensees, developers, and independent software vendors (ISVs) who license and distribute the Java 2 Runtime Environment with their programs. Vendors must follow the terms of the Java 2 SDK, Standard Edition, Binary Code License agreement. Required vs. Optional Files

The files that make up the Java 2 SDK, Standard Edition, are divided into two categories: required and optional. Optional files may be excluded from redistributions of the Java 2 SDK at the vendor's discretion. The following section contains a list of the files and directories that may optionally be omitted from redistributions of the Java 2 SDK. All files not in these lists of optional files must be included in redistributions of the Java 2 SDK.

Optional Files and Directories

The following files may be optionally excluded from redistributions:

            Character conversion classes 
            Directory containing extension jar files 
      bin/rmid and jre/bin/rmid 
            Java RMI Activation System Daemon 
      bin/rmiregistry and jre/bin/rmiregistry 
            Java Remote Object Registry 
      bin/tnameserv and jre/bin/tnameserv 
            Java IDL Name Server 
      bin/keytool and jre/bin/keytool 
            Key and Certificate Management Tool 
      bin/policytool and jre/bin/policytool 
            Policy File Creation and Management Tool 
      bin/orbd and jre/bin/orbd 
            Object Request Broker Daemon 
      bin/servertool and jre/bin/servertool 
            Java IDL Server Tool 

Archive of source files

In addition, the Java Web Start product may be excluded from redistributions. The Java Web Start product is contained in a

      file named,,, or
      javaws-1_0_1_02-win-int.exe, depending on the platform. 

Unlimited Strength Java Cryptography Extension

Due to import control restrictions for some countries, the Java Cryptography Extension (JCE) policy files shipped with the Java 2 SDK, Standard Edition and the Java 2 Runtime Environment allow strong but limited cryptography to be used. These files are located at


where <java-home> is the jre directory of the Java 2 SDK or the top-level directory of the Java 2 Runtime Environment.

An unlimited strength version of these files indicating no restrictions on cryptographic strengths is available on the Java 2 SDK web site for those living in eligible countries. Those living in eligible countries may download the unlimited strength version and replace the strong cryptography jar files with the unlimited strength files.

Endorsed Standards Override Mechanism

An endorsed standard is a Java API defined through a standards process other than the Java Community Process(SM) (JCP(SM)). Because endorsed standards are defined outside the JCP, it is anticipated that such standards will be revised between releases of the Java 2 Platform. In order to take advantage of new revisions to endorsed standards, developers and software vendors may use the Endorsed Standards Override Mechanism to provide newer versions of an endorsed standard than those included in the Java 2 Platform as released by Sun Microsystems.

For more information on the Endorsed Standards Override Mechanism, including the list of platform packages that it may be used to override, see

Classes in the packages listed on that web page may be replaced only by classes implementing a more recent version of the API as defined by the appropriate standards body.

In addition to the packages listed in the document at the above URL, which are part of the Java 2 Platform, Standard Edition (J2SE(TM)) specification, redistributors of Sun's J2SE Reference Implementation are allowed to override classes whose sole purpose is to implement the functionality provided by public APIs defined in these Endorsed Standards packages. These would include, for example, subsidiary packages in the org.w3c.dom namespace whose purpose is to implement the org.w3c.dom APIs.

Sun Java Web Pages

For additional information, refer to these Sun Microsystems pages on the World Wide Web:

The Java Software web site, with the latest information on Java technology, product information, news, and features.

The Java 2 SDK, Standard Edition, is a product of Sun Microsystems(TM), Inc. This product includes code licensed from RSA Security.