### Question:
TracingContextUtils { @Nullable public static Span getSpanWithoutDefault(Context context) { return context.getValue(CONTEXT_SPAN_KEY); } private  TracingContextUtils(); static Context withSpan(Span span, Context context); static Span getCurrentSpan(); static Span getSpan(Context context); @Nullable static Span getSpanWithoutDefault(Context context); static Scope currentContextWith(Span span);  }### Answer:
@Test void testGetSpanWithoutDefault_DefaultContext() { Span span = TracingContextUtils.getSpanWithoutDefault(Context.current()); assertThat(span).isNull(); }