Getting HTTP Response Code 0 intermittently during Outbound REST to multiple different API providers

[MG Casey]

Since we updated to London Patch 8 Hot Fix 2, I am intermittently getting a "0" HTTP response code from my outbound REST calls within the instance.

The error returned is "java.lang.NullPointerException". The strangest part is that the normal response is still returned in Outbound HTTP Requests (it shows a normal 200 HTTP response code instead of 0). 

Anyone else have sporadic issues with RESTMessageV2 on this release? HI Support hasn't found much so far.

[Nazhath Mariam]

I got this issue resolved after a lot of struggle

I had to change the regex expression which was throwing the null pointer expression.