scheduler service problem

[Yong Jiao]

I a new user. I downloaded turbine-2.1b4.jar, and use it as standalone

When I use the following TurbinSchedulerService methods, I always got
NullPointerException:
  addJob(), getJob()
I looked into the source code. It is related with the comparison of
NumberKey objects.

Are there any bugs in the scheduler service or I didn't setup properly?
I appreciate Any advice.