WebTestClient.BodySpec.isEmpty() returns false on byte[0]

WebTestClient.BodySpec.isEmpty() returns false on a Mono.empty().

In debug-view the responseBody is a MonoProcessor with a value of byte[0].

Interestingly enough, WebTestClient.BodySpec.getBodyAsString() has the following code:

if (body == null || body.length == 0) {		
   return "";		
}

where a byte[0] would be considered empty.