Thank you for the quick reply. We traced the problem down to our setting of httpClientCodecMaxChunkSize = 8192. Our response had Content-Length: 8423. It seems Gatling was trying to release a chunk that’s not available.
I’m encountering this problem now also. I am attempting to check that a jsonPath exists in the response body for a large payload. I have attempted to uncomment and change
`
httpClientCodecMaxChunkSize = 8192
`
to a much larger number but that did not resolve the issue.