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When I start the app server I can see the DSs, but there are 2 issues: First, __CallFlow and __TimerPool should not be on the list. They are not intended to be used by the end user. Second, I created a data source jdbc/orders. There are the xml files in Server Resources and when I run the app the DS gets registered -- all good. Now when I go to the Entity From DB wizard again I see jdbc/orders in the combo box twice!
For the First Issue, regarding System DSs, there is already a issue filed : 74435 http://www.netbeans.org/issues/show_bug.cgi?id=74435 The Second Issue, it is because the list shows both the registered datasources and the one's in the project. In this case, since the project has been deployed previously with resources, the deployed resources are showing up twice. The list should either filter to show only unique names or the resource names should be extended to indicate the ones on the server. Will investigate.
Add hashset() to SunDatasource which enables correct merge of resources returned from the server and resources within the project.