Developer Resources
This project uses source code hosting at BitBucket.
I use NetBeans to build the project, though you are welcome to use Eclipse.
This project also hosts a fork of HSPlet. Feel free to browse the source code.
The original OpenHSP project has a Subversion server which contains lots of useful information, especially the HSP3 AX byte-code format specification.
Similarly, the JVM Specification (5.0 and 7.0) is also extremely useful for this project's use of OW2 ASM.
If you're interfacing to HSP (e.g. implementing the API and extensions), you may wish to examine the ReferenceDocuments space, which contains the original text as well as translations for API reference documents.