public static double stop() {
StopwatchData data = dataTL.get();
if (!data.started) {
LogFactory.getLog(Stopwatch.class).error("Stopwatch.stop() called but it was not started.");
}
double duration = (((double) System.nanoTime()) - ((double) data.startedAt)) / 1e6;
data.started = false;
return duration;
}
public static void start() {
StopwatchData data = dataTL.get();
if (data.started) {
LogFactory.getLog(Stopwatch.class)
.error("Stopwatch.start() called but it was already started.");
}
data.startedAt = System.nanoTime();
data.started = true;
}