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This issue was reported manually by sdedic. It already has 1 duplicates Build: NetBeans IDE 7.3 Beta (Build 201210011125) VM: Java HotSpot(TM) 64-Bit Server VM, 23.2-b09, Java(TM) SE Runtime Environment, 1.7.0_06-b24 OS: Windows 7 Maximum slowness yet reported was 3260 ms, average is 3260
Created attachment 126393 [details] nps snapshot
Detection of WSDL content in the downloaded resources is done by parsing the resource. Typically a schema is downloaded, which means the content is XML-processed needlessly. In the worst case, the XML parsing will fetch referenced external entities from the Internet, making the download time even longer.
Report from old NetBeans version. Due to code changes since it was reported likely not reproducible now. Feel free to reopen if happens in 8.0.2 or 8.1.