csv should support the empty string as the parameter instead of throwing java.lang.NullPointerException

[thleqel]

I am testing a micro-service that returns the response content-type as text/csv. If there is no data, it still returns an empty string.

I use Karate csv keyword to convert the response to json for further verification. Everything works fine except when there is an empty response, the scripts throw java.lang.NullPointerException, instead of returning an empty json.

The issue can be reproduce by this:
* csv mycsv = ""

[thleqel]

@ptrthomas I can create a PR to fix this if you like.

[ptrthomas]

@thleqel thanks for offering, since we are actively prepping a new branch the fix will go there so we'll do it

[ptrthomas]

1.0 released