xfire1.2.3, aegis binding. The following code causes trouble if one of the byte arrays is of size zero in the Container class. As a result, either a Fault or an invalid number of Containers is received on the other side. The server I tested this simply echos the result ... >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> import org.codehaus.xfire.service.binding.ObjectServiceFactory; import org.codehaus.xfire.service.Service; import org.codehaus.xfire.client.XFireProxyFactory; import org.codehaus.xfire.transport.Channel; public class Test { public static void main (String [] args) { try { Class serviceCallback = Callback.class; ObjectServiceFactory serviceFactory = new ObjectServiceFactory (); Service serviceModel = serviceFactory.create (serviceCallback); XFireProxyFactory proxyFactory = new XFireProxyFactory (); Callback testCallback = (Callback) proxyFactory.create(serviceModel, "localhost:8080/" + serviceCallback.getName ()); Container [] containers = new Container [2]; System.out.println ("C DSPExternalTest::containerTest"); containers [0] = new Container (); containers [0].myField = 3; containers [0].myArray = new byte [0];//causes trouble containers [1] = new Container (); containers [1].myField = 4; containers [1].myArray = new byte [2]; containers = testCallback.containerTest (containers); System.out.println ("Containers: "+containers.length); System.out.println ("Containers1: "+containers [0].myField); System.out.println ("Containers2: "+containers [1].myField); System.out.println ("Containers1: "+containers [0].myArray.length); System.out.println ("Containers2: "+containers [1].myArray.length); } catch (Exception e) { e.printStackTrace (); } } } public class Container implements java.io.Serializable { public Container () { } public int myField; public byte [] myArray; public int getMyField () { return myField; } public void setMyField (int field) { myField = field; } public byte [] getMyArray () { return myArray; } public void setMyArray (byte [] array) { myArray = array; } } public interface Callback { Container [] containerTest (Container [] containers) throws Exception; } public class CallbackImpl implements Callback { public Container [] containerTest (Container [] containers) throws Exception { System.out.println ("S CallbackImpl::containerTest"); System.out.println ("Containers: "+containers.length); System.out.println ("Containers1: "+containers [0].myField); System.out.println ("Containers2: "+containers [1].myField); System.out.println ("Containers1: "+containers [0].myArray.length); System.out.println ("Containers2: "+containers [1].myArray.length); return containers; } } And here's the wsdl: − <wsdl:definitions targetNamespace="http://DefaultNamespace"> − <wsdl:types> − <xsd:schema attributeFormDefault="qualified" elementFormDefault="qualified" targetNamespace="http://DefaultNamespace"> − <xsd:complexType name="ArrayOfContainer"> − <xsd:sequence> <xsd:element maxOccurs="unbounded" minOccurs="0" name="Container" nillable="true" type="tns:Container"/> </xsd:sequence> </xsd:complexType> − <xsd:complexType name="Container"> − <xsd:sequence> <xsd:element minOccurs="0" name="myArray" nillable="true" type="xsd:base64Binary"/> <xsd:element minOccurs="0" name="myField" type="xsd:int"/> </xsd:sequence> </xsd:complexType> − <xsd:element name="containerTest"> − <xsd:complexType> − <xsd:sequence> <xsd:element maxOccurs="1" minOccurs="1" name="in0" nillable="true" type="tns:ArrayOfContainer"/> </xsd:sequence> </xsd:complexType> </xsd:element> − <xsd:element name="containerTestResponse"> − <xsd:complexType> − <xsd:sequence> <xsd:element maxOccurs="1" minOccurs="1" name="out" nillable="true" type="tns:ArrayOfContainer"/> </xsd:sequence> </xsd:complexType> </xsd:element> </xsd:schema> </wsdl:types> − <wsdl:message name="containerTestRequest"> <wsdl:part name="parameters" element="tns:containerTest"/> </wsdl:message> − <wsdl:message name="containerTestResponse"> <wsdl:part name="parameters" element="tns:containerTestResponse"/> </wsdl:message> − <wsdl:portType name="CallbackPortType"> − <wsdl:operation name="containerTest"> <wsdl:input name="containerTestRequest" message="tns:containerTestRequest"/> <wsdl:output name="containerTestResponse" message="tns:containerTestResponse"/> </wsdl:operation> </wsdl:portType> − <wsdl:binding name="CallbackHttpBinding" type="tns:CallbackPortType"> <wsdlsoap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/> − <wsdl:operation name="containerTest"> <wsdlsoap:operation soapAction=""/> − <wsdl:input name="containerTestRequest"> <wsdlsoap:body use="literal"/> </wsdl:input> − <wsdl:output name="containerTestResponse"> <wsdlsoap:body use="literal"/> </wsdl:output> </wsdl:operation> </wsdl:binding> − <wsdl:service name="Callback"> − <wsdl:port name="CallbackHttpPort" binding="tns:CallbackHttpBinding"> <wsdlsoap:address location="http://localhost/services/Callback"/> </wsdl:port> </wsdl:service> </wsdl:definitions>