I am one of the developers of a java library for Nfe 3.10, has several features besides batch sending.
It has several unit tests (+1000) plus has Setter-level value validations and validates against an xsd in batch shipment, plus the concern of being easy to use :)
You need a configuration class and the library Facade to communicate with Sefaz.
NFStatusServicoConsultaRetorno retorno = new WSFacade(config).consultaStatus(NFUnidadeFederativa.SC);
System.out.println(retorno.getStatus());
System.out.println(retorno.getMotivo());
If the webservice is ok, the result will be:
107
Servico em operacao
Follow the link:
https://github.com/wmixvideo/nfe
And some in C know if it exists?
– Jorge B.