Server: JBoss-4.2.4GA with jbossws-3.0.1-native-2.0.4.GA. I used wsconsume to generate the client artefacts from an MS Dynamics Axapta 2009 instance. When trying to use one of them I get Caused by: java.lang.IllegalArgumentException: Illegal null argument:ns | at org.jboss.ws.metadata.wsdl.xmlschema.JBossXSModel.createNamespaceItemIfNotExistent(JBossXSModel.java:511) | at org.jboss.ws.metadata.wsdl.xmlschema.JBossXSModel.addXSElementDeclaration(JBossXSModel.java:351) | at org.jboss.ws.metadata.wsdl.xmlschema.WSSchemaUtils.copyXSModel(WSSchemaUtils.java:707) | at org.jboss.ws.tools.JavaToXSD.parseSchema(JavaToXSD.java:202) | at org.jboss.ws.tools.wsdl.WSDL11Reader.processTypes(WSDL11Reader.java:401) | at org.jboss.ws.tools.wsdl.WSDL11Reader.processDefinition(WSDL11Reader.java:178) | at org.jboss.ws.tools.wsdl.WSDLDefinitionsFactory.parse(WSDLDefinitionsFactory.java:128) | at org.jboss.ws.metadata.umdm.ServiceMetaData.getWsdlDefinitions(ServiceMetaData.java:295) | at org.jboss.ws.metadata.builder.jaxws.JAXWSClientMetaDataBuilder.buildMetaData(JAXWSClientMetaDataBuilder.java:86) | at org.jboss.ws.core.jaxws.spi.ServiceDelegateImpl.<init>(ServiceDelegateImpl.java:140) | at org.jboss.ws.core.jaxws.spi.ProviderImpl.createServiceDelegate(ProviderImpl.java:64) | at javax.xml.ws.Service.<init>(Service.java:81) | at com.microsoft.schemas.dynamics._2008._01.services.GeneralJournalService_Service.<init>(GeneralJournalService_Service.java:40) at biz.mbisoftware.fn.ejb.session.inventory.GeneralLedgerIfAx2009.sendAggregatedValues(GeneralLedgerIfAx2009.java:36) | I found https://jira.jboss.org/jira/browse/JBWS-686 which is solved, but studying the wsdl a question came up to my mind. The wsdl contains an import without namespace. Can this cause the exception? If yes, what can I do? First lines of WSDL: | <wsdl:definitions name="GeneralJournalService" targetNamespace="http://schemas.microsoft.com/dynamics/2008/01/servi... | <wsp:Policy wsu:Id="BasicHttpBinding_GeneralJournalService_policy"> | <wsp:ExactlyOne> | <wsp:All> | <http:NegotiateAuthentication/> | </wsp:All> | </wsp:ExactlyOne> | </wsp:Policy> | <wsdl:types> | <xsd:schema targetNamespace="http://schemas.microsoft.com/dynamics/2008/01/servi... | <xsd:import schemaLocation="http://ax-srv-01.contoso.com/MicrosoftDynamicsAXAif5... namespace="http://schemas.microsoft.com/dynamics/2008/01/services&qu... | <xsd:import schemaLocation="http://ax-srv-01.contoso.com/MicrosoftDynamicsAXAif5... namespace="http://schemas.microsoft.com/dynamics/2008/01/documents/F... | <xsd:import schemaLocation="http://ax-srv-01.contoso.com/MicrosoftDynamicsAXAif5... namespace="http://schemas.microsoft.com/2003/10/Serialization/"... | <xsd:import schemaLocation="http://ax-srv-01.contoso.com/MicrosoftDynamicsAXAif5... namespace="http://schemas.microsoft.com/dynamics/2008/01/documents/L... | <xsd:import schemaLocation="http://ax-srv-01.contoso.com/MicrosoftDynamicsAXAif5... | <xsd:import schemaLocation="http://ax-srv-01.contoso.com/MicrosoftDynamicsAXAif5... namespace="http://schemas.microsoft.com/dynamics/2006/02/documents/E... | <xsd:import schemaLocation="http://ax-srv-01.contoso.com/MicrosoftDynamicsAXAif5... namespace="http://schemas.microsoft.com/dynamics/2006/02/documents/E... | <xsd:import schemaLocation="http://ax-srv-01.contoso.com/MicrosoftDynamicsAXAif5... namespace="http://schemas.microsoft.com/dynamics/2006/02/documents/Q... | </xsd:schema> | </wsdl:types> View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4232588#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...