> String blobValue = vars.get("blobValue");
>
> what does vars.get() return if the variable does not exist?
>
>
Right. That's what's causing the crash. If I create blobValue explicitly
beforehand the Beanshell Assertion works.So the question more narrowly defined is: how can one test for the existence of a variable before doing a vars.get, since vars.get crashes if the specified variable doesn't exist?
