When using the cxf extensions, the schema http://schemas.xmlsoap.org/wsdl/ is loaded. This schema is provided locally, but the local version is never loaded. In a production environment where the server restricted outbound connections, spring failed to initialize its application context at startup. Spring's DelegatingEntityResolver checks whether the schemaLocation ends in *.xsd before resolving its location through the entries provided by the spring.schemas files. Because this schemaLocation has no extension, the mapping to the local version is ignored.