@Override
    public Trace currentRawTraceObject() {
        final Reference<Trace> reference = threadLocalBinder.get();
        return reference.get();
    }
Return Trace object AFTER validating whether it can be sampled or not.

@return Trace
agent-module/profiler/src/main/java/com/navercorp/pinpoint/profiler/context/DefaultTraceFactory.java