JBuilder Personal does not include IDE-based support for building Jar files. Building the Jar file is a necessary step for use as an APE. For your convenience, we have included MakeitemtypeJar.bat in the base of each respective sample project. After you have compiled the project in JBuilder, you can run the batch file to create the Jar file, which will be placed in the Projects folder by default, where it will be ready for check in to the StarFlow Extensions project in the Projects folder. You may need to edit the batch file if JBuilder is not installed in the C:\jbuilderx folder.