WebSocketSampler cause jmeter does not exit normally.

[isaacdong]

static WebSocketSampler.executor will be better if it's under control of A Test Plan or some user defined KEY.

my TEMP solution is:
add if(! executor.isTerminated()) executor.shutdownNow(); at the end of public void testEnded(String host).

public void testEnded(String host) {
for (ServiceSocket socket : connectionList.values()) {
socket.close();
}
if(! executor.isTerminated()) executor.shutdownNow();
}