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https://issues.apache.org/jira/browse/TUSCANY-1062?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12474556
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Paul Golick commented on TUSCANY-1062:
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I have verified this issue is fixed in revision 509219. Please close this issue
> DataGraph.createRootObject implementation does not match 2.1 spec and also is
> not helpful when given bad parameters
> -------------------------------------------------------------------------------------------------------------------
>
> Key: TUSCANY-1062
> URL: https://issues.apache.org/jira/browse/TUSCANY-1062
> Project: Tuscany
> Issue Type: Bug
> Components: Java SDO Implementation
> Affects Versions: Java-M2
> Reporter: Paul Golick
> Fix For: Java-SDO-Mx
>
> Attachments: DataGraphImpl_patch.txt, DataGraphTestCase.jar
>
>
> When createRootObject is called and a root object has already been created,
> the SDO 2.1 spec calls for an IllegalStateException but the current
> implementation replaces the existing root.
> Also, when either a type is not provided or when a type cannot be determined
> from the URI and typeName provided, a NullPointerException is thrown from
> org.eclipse.emf.ecore.util.EcoreUtil.create() which is not helpful to a user
> who is not literate in emf utilities: an exception with a helpful error
> message should be provided.
> Attached are:
> a) a jar containing a new test case file for DataGraph
> (sdo/impl/src/test/java/org/apache/tuscany/sdo/test/DataGraphTestCase.java)
> b) a patch that corrects these problems in
> sdo/impl/src/main/java/org/apache/tuscany/sdo/impl/DataGraphImpl.java
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