Hello Developers,

I have a question regarding throughput controllers in Jmeter. I've read all the 
documentation I can find as well as Stackoverflow and I can't seem to find 
anyone with my issue, which leads me to believe I must be doing something 
wrong. For the past few projects I've noticed that the throughput controller 
will cause a "uncaught exception: Stackoverflow" error in Jmeter. It's a bit 
inconsistent to produce but it happens often enough with my project that I'm 
concerned. I've also checked the jmeter log and "StackOverflowError: null" is 
as specific as it gets.

I have the throughput controller set to limit total samples executed for a 
thread group. For example, I only want 100K total samples for each thread group 
and I have 8 thread groups. In each thread group is a very simple post request 
with variables read from CSV file, and only contain two assertions to make sure 
it's a valid post request (OK stsmsg and 200 code). I at first believed that 
this issue popped up from the throughput controller suddenly killing all 
threads after it reaches the quota, I try verifying this with 3 users and a 
throughput of 5 requests total. And I had a similar "stackoverflowerror" as 
mentioned previously.

I'd appreciate some clarity on what could be causing this uncaught exception.

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