title: WSO2 Data DelegatingResultSet.isClosed in Procedure SQL Server
body: <p>i have a problem with wso2 data version 2.6.3 to execute procedure in sql server:
  My Config:</p>
  
  <pre><code>&lt;data name="TestDS"&gt;         
      &lt;config id="ds_test"&gt;                  
    &lt;property name="org.wso2.ws.dataservice.driver"&gt;net.sourceforge.jtds.jdbc.Driver&lt;/property&gt;                  
    &lt;property name="org.wso2.ws.dataservice.protocol"&gt;jdbc:jtds:sqlserver://172.16.16.16:1433/db_stores;instance=sql1&lt;/property&gt;                  
    &lt;property name="org.wso2.ws.dataservice.user"&gt;storeuser&lt;/property&gt;                  
    &lt;property name="org.wso2.ws.dataservice.password"&gt;3st0re123&lt;/property&gt;                  
    &lt;property name="org.wso2.ws.dataservice.autocommit"&gt;&lt;/property&gt;         
  &lt;/config&gt;         
  &lt;query id="qrySearchTest" useConfig="ds_test"&gt;                  
    &lt;sql&gt;exec USP_PesquisaSistema  @SIS_CRIPTOGRAFIA_PASSAPORTE =:chave&lt;/sql&gt;                  
    &lt;result element="sistemas" rowName="sistema" defaultNamespace="http://store.test.org.br"&gt;                           
       &lt;element name="codigoSistema" column="SIS_IDF" xsdType="xs:integer" /&gt;                           
       &lt;element name="siglaSistema" column="SIS_SIGLA" xsdType="xs:string" /&gt;                           
       &lt;element name="nomeSistema" column="SIS_NOME" xsdType="xs:string" /&gt;                  
    &lt;/result&gt;                  
    &lt;param name="chave" sqlType="STRING" ordinal="1" /&gt;         
  &lt;/query&gt;         
      &lt;operation name="SearchTest"&gt;                  
        &lt;call-query href="qrySearchTest"&gt;                           
           &lt;with-param name="chave" query-param="chave" /&gt;                  
        &lt;/call-query&gt;         
      &lt;/operation&gt;
  &lt;/data&gt;
  </code></pre>
  
  <p>and the error <strong>java.lang.AbstractMethodError</strong>:</p>
  
  <pre><code>TID: [0] [WSO2 Data Services Server] [2012-09-24 09:44:32,762] ERROR org.apache.axis2.transport.http.AxisServlet} - {org.apache.axis2.transport.http.AxisServlet} java.lang.AbstractMethodError
  
      at org.apache.commons.dbcp.DelegatingResultSet.isClosed(DelegatingResultSet.java:688)
      at org.apache.commons.dbcp.DelegatingResultSet.isClosed(DelegatingResultSet.java:688)
      at org.wso2.carbon.dataservices.core.description.query.SQLQuery.processStoredProcQuery(SQLQuery.java:904)
      at org.wso2.carbon.dataservices.core.description.query.SQLQuery.runQuery(SQLQuery.java:2071)
      at org.wso2.carbon.dataservices.core.description.query.Query.execute(Query.java:252)
      at org.wso2.carbon.dataservices.core.engine.CallQuery.execute(CallQuery.java:185)
      at org.wso2.carbon.dataservices.core.engine.CallQueryGroup.execute(CallQueryGroup.java:110)
      at org.wso2.carbon.dataservices.core.description.operation.Operation.execute(Operation.java:71)
      at org.wso2.carbon.dataservices.core.engine.DataService.invoke(DataService.java:592)
      at org.wso2.carbon.dataservices.core.engine.DSOMDataSource.execute(DSOMDataSource.java:99)
      at org.wso2.carbon.dataservices.core.engine.DSOMDataSource.serialize(DSOMDataSource.java:110)
      at org.wso2.carbon.dataservices.core.engine.DSOMDataSource.getReader(DSOMDataSource.java:116)
      at org.apache.axiom.om.impl.llom.OMSourcedElementImpl.getDirectReader(OMSourcedElementImpl.java:225)
      at org.apache.axiom.om.impl.llom.OMSourcedElementImpl.forceExpand(OMSourcedElementImpl.java:254)
      at org.apache.axiom.om.impl.llom.OMSourcedElementImpl.getFirstOMChild(OMSourcedElementImpl.java:867)
      at org.apache.axiom.om.impl.OMNavigator._getFirstChild(OMNavigator.java:196)
      at org.apache.axiom.om.impl.OMNavigator.updateNextNode(OMNavigator.java:140) .....
      ......
  </code></pre>
  
  <p>In the version 2.5.1 works.
  If i paste the sql query without SP, works.</p>
  
  <p>can help me ?
  Thank</p>