What are the reasons why JMeter is unable to stop threads?

JMeter may not be able to stop threads for a few reasons:

1. The condition of the loop controller cannot be met: if a loop controller (such as a While Controller) is used and the condition cannot be met, the thread will not stop.
2. If the timer’s time setting is incorrect, the thread will not be able to stop.
3. The thread group’s loop count is not set correctly: if the thread group’s loop count is set to loop forever (such as -1), then the thread will not be able to stop.
4. If any thread in the thread group has not finished executing, the thread will not be able to stop.
5. If a thread depends on the execution result of another thread that has not finished executing, the thread will not be able to stop.
6. Other errors such as configuration mistakes or program errors can also prevent threads from stopping.