How to make TestNG wait for my test to complete before shutting it down

Question

I have a slightly complicated test structure so bear with me,

I have a series of testng test cases and during each I collect some data about the test( not directly b

Answer 1

You can in general do one of the following:
1) By making the main Thread wait for another Thread using

Thread.join();

2) Making the another Thread as Non Daemon or a user thread:link

Thread.setDaemon(false);

The Java Virtual Machine exits when the only threads running are all daemon threads.This method must be called before the thread is started.