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Created attachment 117800 [details] Stack trace. Sample connection node sometimes disappears from Services view and it causes other failures if it is used in wizards. To reproduce: - go to Services view - if sample connection node is not available, go right-click "Java DB|sample" and choose Connect - node appears but then disappears - if you try to create "Persistence|Entity Classes from Database" in web project, it fails with attached exception Product Version: NetBeans IDE Dev (Build 201204040400) Java: 1.7.0_03; Java HotSpot(TM) Client VM 22.1-b02 System: Windows XP version 5.1 running on x86; Cp1250; en_US (nb)
*** This bug has been marked as a duplicate of bug 203381 ***