code: @Override
      public void writeExternal(ObjectOutput s) throws IOException {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEventEnabled()) {
              Tr.event(this, tc, "Serializing " + this);
          }
          super.writeExternal(s);
      }
docs: /*
  @seecom.ibm.ws.bytebuffer.internal.WsByteBufferImpl#writeExternal(java.io.
  ObjectOutput)