About nullpointer exceptions

Summary:

Hi,

We are monitoring system exceptions weekly and we have noticed the system is generating a great volume of nullpointer exception in the last months (about 5000 exceptions per week).
This exceptions are mainly produced by custom agents and process but sometimes it's difficult for us know the exact cause of error. Until now we have not noticed any impact in the system.

But we need to know if this great volume of errors would have severe impact at medium/long term in the internal system, for example buffers, performance or even system crash..
Can you please confirm us this point?