@Test public void testHeaderKey() { assertThat(SpanContextFactory.headerKey()).isEqualTo("X-Cloud-Trace-Context"); }
public static String headerKey() { return "X-Cloud-Trace-Context"; }
SpanContextFactory { public static String headerKey() { return "X-Cloud-Trace-Context"; } }
SpanContextFactory { public static String headerKey() { return "X-Cloud-Trace-Context"; } SpanContextFactory(TraceOptionsFactory traceOptionsFactory);  SpanContextFactory(TraceOptionsFactory traceOptionsFactory,
      IdFactory<TraceId> traceIdFactory, IdFactory<SpanId> spanIdFactory); }
SpanContextFactory { public static String headerKey() { return "X-Cloud-Trace-Context"; } SpanContextFactory(TraceOptionsFactory traceOptionsFactory);  SpanContextFactory(TraceOptionsFactory traceOptionsFactory,
      IdFactory<TraceId> traceIdFactory, IdFactory<SpanId> spanIdFactory); static String headerKey(); SpanContext childContext(SpanContext parentContext); SpanContext initialContext(); SpanContext fromHeader(String header); static String toHeader(SpanContext context); }
SpanContextFactory { public static String headerKey() { return "X-Cloud-Trace-Context"; } SpanContextFactory(TraceOptionsFactory traceOptionsFactory);  SpanContextFactory(TraceOptionsFactory traceOptionsFactory,
      IdFactory<TraceId> traceIdFactory, IdFactory<SpanId> spanIdFactory); static String headerKey(); SpanContext childContext(SpanContext parentContext); SpanContext initialContext(); SpanContext fromHeader(String header); static String toHeader(SpanContext context);  }