For debugging, JBuilder uses JDK commands (for example -Xdebug) that are available in JDK 1.3 or higher. In case you use JDK 1.1.8 for development (which is necessary to test the compatibility with the PDA platform) you have to switch to JDK version 1.3.x for debugging. For information how to select the JDK version, see JDK Version Information.
<MI_Home> refers to the folder in which the Mobile Infrastructure is installed (default is C:\Program Files\SAP Mobile Infrastructure).