NPE in SDOXSDEcoreBuilder.XSDSchemaAdapterFactoryImpl.SchemaLocator.locateSchema
--------------------------------------------------------------------------------

                 Key: TUSCANY-1352
                 URL: https://issues.apache.org/jira/browse/TUSCANY-1352
             Project: Tuscany
          Issue Type: Bug
          Components: Java SDO Implementation
    Affects Versions: Java-SDO-Next
            Reporter: Ron Gavlin
            Priority: Critical


While attempting to use Tuscany DAS with the latest Tuscany SDO, I triggered a 
NPE in the recently added 
SDOXSDEcoreBuilder.XSDSchemaAdapterFactoryImpl.SchemaLocator.locateSchema 
method. The problem occurs when the DAS ConfigUtil.loadConfig method is invoked 
which causes the SDO runtime to try and locate the "sdoJava.xsd" schema. This 
schema has a null targetNamespace which triggers the NPE. The required code 
change is as follows:

... (SDOXSDEcoreBuilder.java line 809)

/* OLD */
            XSDSchema schema = (XSDSchema)iter.next();
            if (schema.getTargetNamespace().equals(namespaceURI))
            {
              return schema;
            }

/* NEW */
            XSDSchema schema = (XSDSchema)iter.next();
            String targetNamespace = schema.getTargetNamespace();
            if (targetNamespace != null && targetNamespace.equals(namespaceURI))
            {
              return schema;
            }

Would someone please apply the above patch which allows Tuscany DAS to once 
again work with the Tuscany SDO head? If I have some time in the next few days, 
I'll try to add a test method to JiraTestCases.java that attempts to "reproduce 
the problem"/"verify the fix".

Thanks,

- Ron

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