Sun Java Wireless Toolkit 2.5.1 for CLDC Download

The Sun Java Wireless Toolkit (formerly known as J2ME Wireless Toolkit) is a set of tools for creating Java applications that run on devices compliant with the Java Technology for the Wireless Industry (JTWI, JSR 185) specification and the Mobile Service Architecture (MSA, JSR 248) specification. It consists of build tools, utilities, and a device emulator.

What's new with WTK 2.5.1?

We've improved some of the API implementations and fixed some bugs with the tool, but the primary feature of this release is that the Sun Java Wireless Toolkit will also supply a release on the Linux operating system. To see a list of existing technology supported within the toolkit continue reading.

The Sun Java Wireless Toolkit implements impressive capabilities which are exposed through standard APIs. The APIs are defined through the Java Community Process (JCP):

You can also develop applications for CLDC 1.0 and MIDP 1.0.

The Sun Java Wireless Toolkit 2.5.1 includes all of the advanced development features found in version 2.2, 2.3 Beta, 2.5 Beta 2 such as MIDlet signing, certificate management, integrated over-the-air (OTA) emulation, push registry emulation, and more.

This release of the Sun Java Wireless Toolkit includes Nokia's Scalable Network Application Package (SNAP) Mobile API and the SNAP Mobile Sample Application as part of the toolkit's External API feature. SNAP Mobile is a combination of client software and server infrastructure that supports the creation of networked, community-enabled multiplayer games. Please see SNAP Mobile Emulation Environment Installation for further information.

System Requirements - Software

  • Microsoft Windows XP and Linux-x86 (English version tested with Ubuntu 6.x)
  • The following libraries should be present on the system running Ubuntu v6.x:
    • ibXpm (libxpm-dev)
    • libXt (libxt-dev)
    • libX11 (libx11-dev)
    • libICE (libice-dev)
    • libSM (libsm-dev)
    • libpthread (libc6-dev)
    • libm (libc6-dev)
    • libnsl (libc6-dev)
    • libstdc++6-dev
  • Java TM 2 Platform, Standard Edition (Java SE SDK), version 1.5.0 - if you plan to do development, or Java TM 2, Standard Edition Runtime Environment (JRE), version 1.5.0 - if you only plan to run the demonstration applications.

    To download the SDK or JRE you want, go to here

  • Apple QuickTime player (required to play AMR media on Windows)
  • To play Adaptive Multi-Rate (AMR) content on Linux you must have a 3GPP reference implementation. Chapter 8 of the Sun Java Wireless Toolkit User's Guide describes how to enable AMR support.

System Requirements - Hardware

Minimum hardware requirements are:

  • 100 MB hard disk space
  • 128 MB system RAM
  • 800 MHz Pentium III CPU

Installing the Sun Java Wireless Toolkit for CLDC on Windows

First ensure you have an appropriate Java SE environment installed, as described previously.

Run the installer, sun_java_wireless_toolkit-2_5_1-windows.exe. Follow the instructions provided by the installer.

Installing the Sun Java Wireless Toolkit for CLDC on Linux

First ensure you have an appropriate Java SE environment installed, as described previously.

Run the installer, sun_java_wireless_toolkit-2_5_1-linux.bin. Follow the instructions provided by the installer.

Download Sun Java Wireless Toolkit 2.5.1 for CLDC for Windows and Linux

Third Party Licenses

SNAP Mobile Emulation Environment Installation

Please note that the SNAP Mobile Emulation Environment needs to be downloaded, installed and started in order to successfully run the SNAP Mobile Sample Application. To download and run the Emulation Environment:

  • Go to http://www.forum.nokia.com/games/snapmobile and log in (or create an account first if necessary)
  • Select "SNAP Mobile SDK" from the "Tools and SDKs" section
  • Download installer and run
  • Go to: "\SNAPMobile\tools\ServerEmulator\"
  • Under Windows, run "emu.bat"

Frequently Asked Questions

If you have questions about Sun Java Wireless Toolkit for CLDC.