Re: got java.lang.StackOverflowError when loading a hdl
I don't have any problems loading your Xor.hdl on my system.
It looks like the simulator is stuck in a recursive loop trying to load the HDL file.
Try putting the Xor.hdl in a folder with no other HDL files in it. This will tell you if the problem is with the simulator installation or with one of the HDL files that Xor is trying to use. If the Xor is in an otherwise empty folder, it is forced to use the built-in And, Or and Not chips.
(For example, a common error to make when writing your first HDL is to erroneously have Not.hdl using a Not chip in its PARTS section. This usually leads to a hang rather than a stack overflow, however.)