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This issue was reported manually by sdedic. It already has 2 duplicates Build: NetBeans IDE Dev (Build EaselCSS-389-on-20120726) VM: Java HotSpot(TM) 64-Bit Server VM, 23.0-b21, Java(TM) SE Runtime Environment, 1.7.0_04-b22 OS: Windows 7 User Comments: pjiricka: Code completion in web.xml for the first time. I noticed that there was a "Downloading..." item shown for a while - I thought that no download is needed, and the web.xml schema is bundled with NetBeans, no? This was web.xml 3.0. jyeary: Working on taglib.xml code completion. Maximum slowness yet reported was 4329 ms, average is 3418
Created attachment 126395 [details] nps snapshot
The current implementation forces build of textual content of the completion item, which means the defining SchemaModel is initialized etc. Some information may be already known to the CompletionItem, so addNSAwareCompletionItem could query properties of the completion item rather than the replaced text - saving some time in CC processing.
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.