code: public final void setSecurityUseridSentBySystem(boolean value) {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.entry(this, tc, "setSecurityUseridSentBySystem", Boolean.valueOf(value));
          jmo.setBooleanField(JsHdrAccess.SECURITYSENTBYSYSTEM, value);
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.exit(this, tc, "setSecurityUseridSentBySystem");
      }
docs: /*
  Set whether the message with a SecurityUserid field was sent by
  a system user.
  
  Javadoc description supplied by JsMessage interface.