*/
public Profiler createNestedProfiler(String parentProfilerName, String nestedProfilerName) {
Stack<Profiler> profilers;
if (threadLocal.get() == null) {
profilers = new Stack<Profiler>();
final ProfilerRegistry profilerRegistry = ProfilerRegistry.getThreadContextInstance();
profilers.push(profilerRegistry.get(parentProfilerName));
threadLocal.set(profilers);
} else {
profilers = threadLocal.get();
}
Profiler profiler = profilers.peek();