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https://issues.apache.org/jira/browse/TUSCANY-1457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12513989
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Kelvin Goodson commented on TUSCANY-1457:
-----------------------------------------

My guess is that david will be using the ones from the javadoc ...

       XSD2JavaGenerator -generateBuiltIn commonj.sdo -targetDirectory 
<temp-dir> -javaPackage org.apache.tuscany.sdo.model 
<sdo-api-dir>/src/main/resources/xml/sdoModel.xsd



> Unable to code gen SDOModel.xsd
> -------------------------------
>
>                 Key: TUSCANY-1457
>                 URL: https://issues.apache.org/jira/browse/TUSCANY-1457
>             Project: Tuscany
>          Issue Type: Bug
>          Components: Java SDO Tools
>    Affects Versions: Java-SDO-M2
>         Environment: n/a
>            Reporter: David T. Adcox
>             Fix For: Java-SDO-1.0
>
>
> When I attempt to generate the java source files representing the SDOModel, I 
> am seeing a NPE thrown in SDOXSDEcoreBuilder.java.  Here is the stack trace:
> java.lang.NullPointerException
>       at 
> org.apache.tuscany.sdo.helper.SDOXSDEcoreBuilder.lookupPrefix(SDOXSDEcoreBuilder.java:104)
>       at 
> org.apache.tuscany.sdo.helper.SDOXSDEcoreBuilder.getEPackage(SDOXSDEcoreBuilder.java:129)
>       at 
> org.apache.tuscany.sdo.helper.BaseSDOXSDEcoreBuilder.getEStructuralFeature(BaseSDOXSDEcoreBuilder.java:1413)
>       at 
> org.apache.tuscany.sdo.helper.BaseSDOXSDEcoreBuilder.generate(BaseSDOXSDEcoreBuilder.java:1512)
>       at 
> org.apache.tuscany.sdo.helper.XSDHelperImpl.define(XSDHelperImpl.java:247)
>       at 
> org.apache.tuscany.sdo.helper.XSDHelperImpl.define(XSDHelperImpl.java:224)
>       at 
> org.apache.tuscany.sdo.generate.XSD2JavaGenerator.generateFromXMLSchema(XSD2JavaGenerator.java:179)
>       at 
> org.apache.tuscany.sdo.generate.XSD2JavaGenerator.run(XSD2JavaGenerator.java:146)
>       at 
> org.apache.tuscany.sdo.generate.XSD2JavaGenerator.main(XSD2JavaGenerator.java:96)
> I've tracked the issue down to some code changes made for T-513.  A change 
> was made in XSDHelperImpl in the define method to change how the ResourceSet 
> is constructed prior to loading the schema.  Additional changes were made in 
> SDOXSDEcoreBuilder to set up some options when constructing a ResourceSet.  
> These combined changes seem to be precipitating the issue.  The 
> XSDSchemaAdapterFactoryImpl inner class contains a method 
> isFactoryForType(Object) that appears to be setting up conditions such that 
> more elementDeclarations than should be expected is being created, later 
> leading to the NPE.

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