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From "Kaushik Mukherjee (Created) (JIRA)" <...@tuscany.apache.org>
Subject [jira] [Created] (TUSCANY-4035) Application could possibly fail to start if multiple threads are loading the same schema
Date Thu, 22 Mar 2012 16:42:22 GMT
Application could possibly fail to start if multiple threads are loading the same schema
----------------------------------------------------------------------------------------

                 Key: TUSCANY-4035
                 URL: https://issues.apache.org/jira/browse/TUSCANY-4035
             Project: Tuscany
          Issue Type: Bug
            Reporter: Kaushik Mukherjee


This was an issue in Tuscany 1.x and is likely an issue in the 2.x code as well. The fix in
1.x was to synchronize schema loading across all XSDModelResolvers.

Starting multiple applications simultaneously can lead to an
exception such as:

org.apache.ws.commons.schema.XmlSchemaException: Schema name conflict in collection. Namespace:
http://my.namespace
at 
org.apache.ws.commons.schema.SchemaBuilder.handleXmlSchemaElement(SchemaBuilder.java:223)

at
org.apache.ws.commons.schema.SchemaBuilder.build(SchemaBuilder.java:202)
at
org.apache.ws.commons.schema.XmlSchemaCollection.read(XmlSchemaCollection.java:424)
at
org.apache.ws.commons.schema.XmlSchemaCollection.read(XmlSchemaCollection.java:347)
at
org.apache.ws.commons.schema.XmlSchemaCollection.read(XmlSchemaCollection.java:379)
at
org.apache.tuscany.sca.xsd.xml.XSDModelResolver.loadOnDemand(XSDModelResolver.java:204)
at
org.apache.tuscany.sca.xsd.xml.XSDModelResolver.aggregate(XSDModelResolver.java:240)
at
org.apache.tuscany.sca.xsd.xml.XSDModelResolver.resolveModel(XSDModelResolver.java:114)


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