Help: Can someone give me a more detail tutorial for debug nifi

[run_psw]

Hi there
 I want to be a contributor to NiFi, but i don't know how to debug NiFi from 
ide. can someone help me? My code will benefit to nifi

Help: I want to be a contributor to NiFi, but encountered two problems

[run_psw]

Hi 
I am a data develper from china , and i am new to NiFi. When I first 
experienced NiFi, It makes me especially excited. So I want to be a 
contributor. I was Reference the website that gave by NiFi 
. but it isn't work.and i can 
find where to modify the code. so i turn over to the source directly. and now i 
have two question
1> where can i find the debug entry
2> can someone give me a more detailed tutorial

i use win10 + idea