Multiple unique random values in a single request in JMeter - jmeter

Question

I am trying to make an HTTP request in JMeter that contains multiple random numbers within a fixed range (specifically 0-50). With each request, I need to send out about 45 different integers, so on any given request, there are six integers within said range that are not included. Obviously {__Random()} doesn't work, as it will inevitably generate some equal values. My idea, and please bear with me because I am very new to this, was to create an array with the integers, such as:
String line = "0, 1, 2, 3, 4, 5.....";
String[] numbers = line.split(",");
and then assign them fixed variable names to include in the request. I can do this with counter with CSV data, but I'm unsure about how to do this with an array.
vars.put("VAR_" + counter, line);
VAR_1 = 1
VAR_2 = 2
and so on...
then shuffle the array (which I do not know how to do in Beanshell) and generate something like:
VAR_1 = 16
VAR_2 = 27
...
to send with the next request.
If anyone could help me with this, or suggest a simpler way, I would great appreciate it. Thanks.

Answer 1

To shuffle the list just use Collections.shuffle() method
Consider using JSR223 Test Elements and Groovy language instead of Beanshell as it is:
More Java compliant
Has better performance
Has built-in support of JSON, XML and some "syntax sugar" which minimises and simplifies code
Check out Groovy Is the New Black article for more details

Answer 2

I figured it out. It's kind of ugly and cumbersome, but fairly simple and does exactly what I needed it to do. In JSR223 PreProcessor, my code is
def list = [0,1,2,3,4,5,.....];
Collections.shuffle(list);
String VAR_1 = Integer.toString(list.getAt(0));
vars.put("VAR_1", VAR_1);
String VAR_2 = Integer.toString(list.getAt(1));
vars.put("VAR_2", VAR_2);
String VAR_3 = Integer.toString(list.getAt(2));
and so on.....
I had to input the 50 variables manually. I'm sure there was a simpler way, but I'm quite satisfied. Thanks for the suggestions.