Whe you read a WSDL from local disc, no error, but if you read a wsdl from a URL throw a exception that:
Retrieving document at WSDLException: faultCode=OTHER_ERROR: Unable to resolve imported document at 'http://localhost:8080/mifichero.wsdl'
no content-type: java.net.UnknownServiceException: no content-type
This error is fixed if change the plugin reference javax.wsdl_1.5 by
javax.wsdl_1.6.2.v200806030405
