[jira] [Created] (NETBEANS-2525) Background Scanning Process for first NetBeans start took more than 15min

["Christian Lenz (JIRA)" <ji...@apache.org>]

Christian Lenz created NETBEANS-2525:
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             Summary: Background Scanning Process for first NetBeans start took more than 15min
                 Key: NETBEANS-2525
                 URL: https://issues.apache.org/jira/browse/NETBEANS-2525
             Project: NetBeans
          Issue Type: Bug
          Components: ide - Performance
    Affects Versions: 11.0
         Environment: Product Version: Apache NetBeans IDE 11.0 (Build incubator-netbeans-release-404-on-20190319)
Java: 11.0.2; Java HotSpot(TM) 64-Bit Server VM 11.0.2+9-LTS
Runtime: Java(TM) SE Runtime Environment 11.0.2+9-LTS
System: Windows 10 version 10.0 running on amd64; Cp1252; de_DE (nb)
User directory: C:\Users\Chrl\AppData\Roaming\NetBeans\11.0
Cache directory: C:\Users\Chrl\AppData\Local\NetBeans\Cache\11.0
            Reporter: Christian Lenz


Steps to reproduce:
* Open NetBeans 11.0 for the very first time
* Choose yes to import settings from NetBeans 10.0 (No plugins, just settings)
* After NetBeans opens, It imported 33 projects from my old NetBeans instance.
* Install nb-javac.
* It opens the projects.
* Background scanning comes ups, need couple of minutes
* Because of some HTML5 projects, Oracle JS Parser implementation installer comes up
* Install Oracle JS Parser Implementation.
* After first background scanning is finished the next one is coming up and takes even longer.
* Waiting until everything is finish. Round about 15-17 min.

I added a heap dump, created via Visual VM: https://drive.google.com/file/d/1yYLnkfxYmm3G7LPzo-nhlgYnCpuUcYiH/view

No I don't want to not use importing settings. First it is possible and needed and second because it is not a real world case. I want my settings from my old IDE and all my opened projects. I don't want to import/open them one after one again, this is not a use case. And I don't want to make the settings again and again, switching to a new version. Of course it will not running as long as I open NetBeans w/o importing settings and opening all projects but again this doesn't make sense.

My projects are:
5 Maven
1 PHP
4 HTML5
14 Ant based NetBeans modules (Some 3rd-party, some from the Core)
8 Maven based NetBeans modules (all 3rd-party)
1 NetBeans Module suite project

What information do you need more? I will add the messages.log too, but I need to clean up my user dir again, because I opened NetBeans after the profiling again.



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