Digging deeper: the module 'org.apache.cxf' depends on 'org.springframework.spring', that seems ok to me... but when spring parses the jbossws-cxf.xml file, it needs the schema (and the classes) present in the cxf module (but I don't think it can see them because spring does not depend on cxf).
Shouldn't spring be a part of the cxf module?