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  1. NetBeans
  2. NETBEANS-4971

Unexpected exception when attempting to cancel the background scan



    • Type: Bug
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 12.1
    • Fix Version/s: None
    • Component/s: ide - UI, php - Editor
    • Labels:
    • Environment:

      Product Version: Apache NetBeans IDE 12.1
      Java: 1.8.0_251; Java HotSpot(TM) 64-Bit Server VM 25.251-b08
      Runtime: Java(TM) SE Runtime Environment 1.8.0_251-b08
      System: Windows 10 version 10.0 running on amd64; Cp1252; en_US (nb)


      I recently joined a team working on an existing (large) project based on PHP and SilverStripe.

      After installing Apache NetBeans 12.1 and importing the project, I left the IDE open while the "Background scanning of projects..." ran. It quickly reached 40% and ... hung.

      Twelve hours later it was still at 40% so I closed the IDE, and forced the scan to stop.

      After checking the web, I restarted the IDE as administrator and noticed that the background scan almost immediately jumped to 100% but then stayed that way for another 2 hours until I closed the IDE (again), removed the entire cache folder (as per other suggestions in various forums), and restarted as a standard user.

      TheĀ  background scan quickly reached 40% and again stopped increasing. After another hour I attempted to cancel the process and was greeted with a message informing me that a bug had been detected.

      The text of the two logs (UI and IDE) is attached.


        1. ui.log
          115 kB
          John Cullen
        2. ide.log
          157 kB
          John Cullen



            • Assignee:
              thedailycommute John Cullen
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