you are right I do have sdo-api-1.0-SNAPSHOT.jar in the build path of my TestCase Java project (which contains my test client).This project depends on TuscanySDO project which contains all the source code for SDO 's.(which I extracted from SVN)Therefore I did not put the sdo-impl jar in build path.By the way by sdo-impl jar did you mean tuscany-sdo-impl-1.0-SNAPSHOT.jar?
ritika "Yang ZHONG" <[EMAIL PROTECTED]> 08/18/2006 11:35 AM Please respond to [email protected] To [email protected] cc Subject Re: java.lang.NullPointer exception when invoking XSDHelper.INSTANCE Looks like you have sdo-api jar in ClassPath, what about sdo-impl jar? On 8/18/06, Ritika Maheshwari <[EMAIL PROTECTED]> wrote: > > Hi, > here is my test client code > > //Create a DataGraph > //SDOUtil.createTypeHelper(); > DataObjectUtil.initRuntime(); > URL url = thisClass.getResource("/newEMF.xsd"); > InputStream inputStream = url.openStream(); > //HelperProviderImpl helperProvider = new > HelperProviderImpl(); > XSDHelper.INSTANCE.define(inputStream, > url.toString()); > inputStream.close(); > DataGraphImpl datagraph = (DataGraphImpl)SDOUtil. > createDataGraph(); > datagraph.createRootObject( > "http://www.ibm.com/websphere/fvt/ejbquery/emf","DataGraphRoot";); > > XSDHelper.INSTANCE invocation gives the following stack trace > Caused by: java.lang.NullPointerException > at commonj.sdo.impl.HelperProvider.getXSDHelper( > HelperProvider.java:343) > at commonj.sdo.helper.XSDHelper.<clinit>(XSDHelper.java:192) > at java.lang.J9VMInternals.initializeImpl(Native Method) > at java.lang.J9VMInternals.initialize(J9VMInternals.java:148) > ... 4 more > I tried to put the HelperProviderImpl class name in the > META-INF/services/commonj.sdo.impl.HelperProviderImpl text file in the > src.main.resources package.But looks like it is not picking up the name > for the HelperProviderImpl. > > Here is the xsd file > > <schema > xmlns="http://www.w3.org/2001/XMLSchema"; > targetNamespace="http://www.ibm.com/websphere/fvt/ejbquery/emf"; > xmlns:ritika="http://www.ibm.com/websphere/fvt/ejbquery/emf"; > xmlns:sdo="commonj.sdo/XML" > xmlns:sdoJava="commonj.sdo/java" > sdoJava:package="com.ibm.websphere.fvt.ejbquery.emf"> > <complexType name="DataGraphRoot"> > <sequence> > <element maxOccurs="unbounded" minOccurs="0" name="deptMed" > type="ritika:DeptMed"/> > <element maxOccurs="unbounded" minOccurs="0" name="empMed" > type="ritika:EmpMed"/> > <element maxOccurs="unbounded" minOccurs="0" name="projectMed" > type="ritika:ProjectMed"/> > <element maxOccurs="unbounded" minOccurs="0" name="taskMed" > type="ritika:TaskMed"/> > <!-- <element name="changeSummary" type="sdo:ChangeSummaryType" /> > --> > </sequence> > </complexType> > <complexType name="DeptMed"> > <sequence> > <element name="deptno" type="int"/> > <element name="name" type="string"/> > <element name="budget" type="double"/> > <element sdo:oppositeProperty="manages" > sdo:propertyType="ritika:EmpMed" name="mgr" type="ritika:EmpMed" /> > <element sdo:oppositeProperty="dept" > sdo:propertyType="ritika:ProjectMed" name="proj" type="ritika:ProjectMed" > /> > <element sdo:oppositeProperty="dept" sdo:propertyType="ritika:EmpMed" > name="emp" type="ritika:EmpMed" /> > </sequence> > </complexType> > <complexType name="EmpMed"> > <sequence> > <element name="empid" type="int"/> > <element name="name" type="string"/> > <element name="salary" type="double"/> > <element name="bonus" type="double"/> > <element sdo:oppositeProperty="emp" sdo:propertyType="ritika:DeptMed" > name="dept" type="ritika:DeptMed" /> > <element sdo:oppositeProperty="emp" sdo:propertyType="ritika:TaskMed" > name="task" type="ritika:TaskMed" /> > <element sdo:oppositeProperty="mgr" sdo:propertyType="ritika:DeptMed" > name="manages" type="ritika:DeptMed" /> > </sequence> > </complexType> > <complexType name="ProjectMed"> > <sequence> > <element name="projid" type="int"/> > <element name="cost" type="double"/> > <element name="startDate" type="dateTime" > sdoJava:instanceClass="java.sql.Timestamp"/> > <element name="endDate" type="dateTime" > sdoJava:instanceClass="java.sql.Timestamp"/> > <element sdo:oppositeProperty="proj" sdo:propertyType="ritika:DeptMed" > name="dept" type="ritika:DeptMed" /> > <element sdo:oppositeProperty="proj" sdo:propertyType="ritika:TaskMed" > name="task" type="ritika:TaskMed" /> > </sequence> > </complexType> > <complexType name="TaskMed"> > <sequence> > <element name="taskid" type="int"/> > <element name="description" type="string"/> > <element name="startDate" type="dateTime" > sdoJava:instanceClass="java.sql.Timestamp" /> > <element name="endDate" type="dateTime" > sdoJava:instanceClass="java.sql.Timestamp" /> > <element sdo:oppositeProperty="task" > sdo:propertyType="ritika:ProjectMed" name="proj" > type="ritika:ProjectMed"/> > <element sdo:oppositeProperty="task" sdo:propertyType="ritika:EmpMed" > name="emp" type="ritika:EmpMed" /> > </sequence> > </complexType> > </schema> > > ritika > > > > -- Yang ZHONG
