This is a Java 2 Micro Edition (J2ME) compatible Java Runtime Environment (JRE) for Palm OS, that was released by IBM in March 2004.

This is required for running Java-based applications on Palm OS, such as the Opera Mini web browser.

The package below contains many files, but most applications only need J9JavaVMMidp20.prc, located under the ...\JVM\ARM4T folder, to be installed on your Palm device. Other files in the same folder add optional localization support for a variety of languages.

This runtime supports running MIDP apps ("MIDlets"), including support for the JSR75 and JSR172 extensions.

For applications which require file or database access (JSR75), also install PIMPrefs.prc, fileconnect.prc, and pimop.prc from the JSR75 folder, plus any desired localization of PIMPrefs.

For applications requiring web connectivity (JSR172), you need to also install WS-Security.prc and WebServices.prc.

The included JavaVMCheck_enUS.prc test application will verify your installation of the IBM WebSphere Micro Java VM.

There is also a JarToPrc windows executable included for converting your own Java MIDlet / J2ME apps to be able to run on Palm OS using this runtime.

From the manual: "The J9 runtime environment is Java 2 Platform, Micro Edition (J2ME) compliant and contains Connected Limited Device Configuration (CLDC 1.1) and Mobile Information Device Profile 2.0 (MIDP 2.0) based technologies."

Compatibility

Version 5.7 and up support Palm OS 5.0 devices only.

Supported devices: Treo 600, Treo 650, Treo 680 and Treo 700 P smartphones, T|X, Tungsten C, Tungsten T3, Tungsten E, Tungsten E2, Tungsten T5 and Zire 72 handhelds, LifeDrive mobile manager. Tungsten T2, Tungsten W, Zire 71 are not officially supported.

Version 5.6 supported Palm OS 3.5 – 4.1, but that version has not yet been uploaded to Palm DB. Please note, that version is limited to MIDP 1.0.

System Requirements: 3.6 MB free memory (check free memory)

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