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From "Raymond Feng" <enjoyj...@gmail.com>
Subject Re: java.lang.NullPointer exception when invoking XSDHelper.INSTANCE
Date Wed, 23 Aug 2006 16:04:40 GMT
Hi,

Would you please open a JIRA and attach your test case to it? We may resolve 
the problem quickly this way.

Thanks,
Raymond

----- Original Message ----- 
From: "Ritika Maheshwari" <ritikam@us.ibm.com>
To: <tuscany-user@ws.apache.org>
Cc: <tuscany-user@ws.apache.org>
Sent: Wednesday, August 23, 2006 8:09 AM
Subject: Re: java.lang.NullPointer exception when invoking 
XSDHelper.INSTANCE


> Thanks for the input.I did insert the code in my main of test client and
> the output was
> file:/C:/WTP0629Host/TestCase/
> file:/C:/WTP0629Host/TuscanySDO2/bin/
> and TuscanySDO2/bin contains
> META-INF/services/commonj.sdo.impl.HelperProvider.I am not sure why it is
> not picking up
>
> ritika
>
>
>
> "Yang ZHONG" <leiwang.yangzhong@gmail.com>
> 08/21/2006 09:17 AM
> Please respond to
> tuscany-user@ws.apache.org
>
>
> To
> tuscany-user@ws.apache.org
> cc
>
> Subject
> Re: java.lang.NullPointer exception when invoking XSDHelper.INSTANCE
>
>
>
>
>
>
> Do you want to try the following code to verify the folders part of your
> ClassPath?
>
>        try
>        {
>          for
>          (
>            java.util.Enumeration folders =
> commonj.sdo.impl.HelperProvider.class.getClassLoader().getResources( "");
>            folders.hasMoreElements();
>          )
>            System.out.println( folders.nextElement());
>        }
>        catch(java.io.IOException eIO)
>        {}
>
>
> On 8/18/06, Ritika Maheshwari <ritikam@us.ibm.com> wrote:
>>
>> My TestProject depends on the TuscanySDO Project .Currently The Test
>> Project has a src/main/resources directory on class path(I manually
>> created this directory)And also as you have suggested the TuscanySDO
>> Project has TuscanySDO/impl/src/main/resources on its classpath.This
>> folder contains the META-INF and HelperProvider info.
>> So basically I have put HelperProvierImpl info at all possible
> places.But
>> it just does not seem to be getting picked up.
>>
>> ritika
>>
>>
>>
>> "Yang ZHONG" <leiwang.yangzhong@gmail.com>
>> 08/18/2006 01:44 PM
>> Please respond to
>> tuscany-user@ws.apache.org
>>
>>
>> To
>> tuscany-user@ws.apache.org
>> cc
>>
>> Subject
>> Re: java.lang.NullPointer exception when invoking XSDHelper.INSTANCE
>>
>>
>>
>>
>>
>>
>> sdo-impl project has a "main/resources" directory under "src" directory
>> already, you don't really have to create your own.
>> It may be easier to just configure that as part of your "source".
>>
>> On 8/18/06, Ritika Maheshwari <ritikam@us.ibm.com> wrote:
>> >
>> > I  created a package src.main.resources under my TestProject .Then
> under
>> > this package creates
>> META-INF/services/commonj.sdo.impl.HelperProvider.The
>> > source folder for Test Project included all the packages under this
>> > project.Therefore src.main.resources is also on the classpath.But
> still
>> I
>> > have NPE for
>> > XSDHelper.INSTANCE
>> >
>> > ritika
>> >
>> >
>> >
>> > "Yang ZHONG" <leiwang.yangzhong@gmail.com>
>> > 08/18/2006 12:29 PM
>> > Please respond to
>> > tuscany-user@ws.apache.org
>> >
>> >
>> > To
>> > tuscany-user@ws.apache.org
>> > cc
>> >
>> > Subject
>> > Re: java.lang.NullPointer exception when invoking XSDHelper.INSTANCE
>> >
>> >
>> >
>> >
>> >
>> >
>> > File in folder doesn't necessarily automatically make it into
> ClassPath,
>> > you
>> > can either mvn to generate Eclipse project file or manually configure
>> > src/main/resources
>> > as one of the project source directories
>> > project properties : Java build path : source (tab) : add folder
>> > (button)
>> > ...
>> >
>> >
>> > On 8/18/06, Ritika Maheshwari <ritikam@us.ibm.com> wrote:
>> > >
>> > > My Test project has a folder META-INF/services which contains text
>> file
>> > > commonj.sdo.impl.HelperProvider
>> > > Also my TuscanySDO project has a folder META-INF/services in
>> > > (src.main.resources) package.which contains the same text file.
>> > >
>> > > I believe the other way I could try is to set the HelperProvider as
> a
>> > > System property.Would you know how I could do this in Eclipse?
>> > >
>> > > ritika
>> > >
>> > >
>> > >
>> > > "Yang ZHONG" <leiwang.yangzhong@gmail.com>
>> > > 08/18/2006 11:55 AM
>> > > Please respond to
>> > > tuscany-user@ws.apache.org
>> > >
>> > >
>> > > To
>> > > tuscany-user@ws.apache.org
>> > > cc
>> > >
>> > > Subject
>> > > Re: java.lang.NullPointer exception when invoking XSDHelper.INSTANCE
>> > >
>> > >
>> > >
>> > >
>> > >
>> > >
>> > > I think it's fine to use sdo-impl project instead of the jar
> version,
>> as
>> > > long as
>> > > META-INF/services/commonj.sdo.impl.HelperProvider
>> > > is in the same ClassPath/ClassLoader as the sdo-api jar/project.
>> > >
>> > > Sometimes people forgets to include
>> > > src/main/resources
>> > > which has META-INF/services/commonj.sdo.impl.HelperProvider,
>> > > is that also your case?
>> > >
>> > > On 8/18/06, Ritika Maheshwari <ritikam@us.ibm.com> wrote:
>> > > >
>> > > > 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" <leiwang.yangzhong@gmail.com>
>> > > > 08/18/2006 11:35 AM
>> > > > Please respond to
>> > > > tuscany-user@ws.apache.org
>> > > >
>> > > >
>> > > > To
>> > > > tuscany-user@ws.apache.org
>> > > > 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 <ritikam@us.ibm.com> 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
>> > > >
>> > > >
>> > > >
>> > >
>> > >
>> > > --
>> > >
>> > > Yang ZHONG
>> > >
>> > >
>> > >
>> >
>> >
>> > --
>> >
>> > Yang ZHONG
>> >
>> >
>> >
>>
>>
>> --
>>
>> Yang ZHONG
>>
>>
>>
>
>
> -- 
>
> Yang ZHONG
>
> 


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