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This bug was originally marked as duplicate of bug 157850, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE Dev (Build 201002152000) VM: Java HotSpot(TM) Client VM, 16.0-b13, Java(TM) SE Runtime Environment, 1.6.0_18-b07 OS: Windows Vista User Comments: averri: Editing Spring configuration file. Stacktrace: java.net.UnknownHostException: www.springframework.org at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:177) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366) at java.net.Socket.connect(Socket.java:525) at java.net.Socket.connect(Socket.java:475) at sun.net.NetworkClient.doConnect(NetworkClient.java:163) at sun.net.www.http.HttpClient.openServer(HttpClient.java:394)
Created attachment 94386 [details] stacktrace
Created attachment 99469 [details] stacktrace
(In reply to comment #1) > Created attachment 94386 [details] > stacktrace How did you get this stacktrace ? I've tried to invoke a completion on Spring context file while disconnected from the network (NetBeans 7.2 dev build) and no error appeared (at least not on screen). Unreachable schemas should not be reported in an error dialog indeed. Please provide more info. The stacktrace in comment #2 is not related to XML, it belongs to J2EE support; will not file a separate issue as the report is ~2 years old and is likely to be either reported or fixed already.