world generator

[Seadragon91]

I commented out the hook for chunk generating and tried only to generate a new world. After joining server crashes with that error

Code:

[07:18:09]   D:    | MCServer has encountered an error and needs to close
[07:18:09] Details | SIGSEGV: Segmentation fault

Without my plugin the server starts fine in debug mode.

Anyone have an idea, how I can provide more informations?

Edit: Didn't see your post will try to create a world trough a command.