docs: @Override
      public WsByteBuffer getRawRequestBodyBuffer() throws IOException, IllegalHttpBodyException {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) {
              Tr.entry(tc, "getRawRequestBodyBuffer(sync)");
          }
          setRawBody(true);
          WsByteBuffer buffer = getRequestBodyBuffer();
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) {
              Tr.exit(tc, "getRawRequestBodyBuffer(sync): " + buffer);
          }
          return buffer;
      }