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I built a skeleton SRW server using Axis 1.1/WSDL2Java ... I noticed that the WSDL2Java operation did not pick up on the fact that an echoedRequest element in a searchRetrieveResponse can contain an optional searchRetrieveRequest and/or a series of unknownParameter's. The class it generated only contains setter's and getter's for 'unknownParameter'. When I open http://www.loc.gov/z3950/agency/zing/srw/srw-types.xsd in XmlSpy, it correctly recognizes that this complex type (extension of searchRetrieveRequestType) is permitted in the schema. I have two questions related to this: 1) The SRW site sort of implies that echoing a searchRetrieveRequest is a capability of SRU, but isnt explicit about whether this is also permitted in SRW. Is it? 2) Is there possibly a bug or limitation in Axis's WSDL2Java that it cannot handle the xs:extension that is used in the schema to define the unknownParameter as an element in a echoedRequest? Thanks, Pete Ciuffetti KnowledgeSite, Inc.