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Bug 270632

Summary: Code-complete always displays "Please wait..."
Product: editor Reporter: _ gtzabari <gtzabari>
Component: Completion & TemplatesAssignee: Dusan Balek <dbalek>
Status: REOPENED ---    
Severity: normal    
Priority: P3    
Version: Dev   
Hardware: PC   
OS: Windows 10 x64   
Issue Type: DEFECT Exception Reporter:
Attachments: profiler snapshot

Description _ gtzabari 2017-05-13 13:12:26 UTC
Product Version: NetBeans IDE Dev (Build 201705080001)
Java: 1.8.0_131; Java HotSpot(TM) 64-Bit Server VM 25.131-b11
Runtime: Java(TM) SE Runtime Environment 1.8.0_131-b11
System: Windows 10 version 10.0 running on amd64; Cp1252; en_CA (nb)
User directory: C:\Users\Gili\AppData\Roaming\NetBeans\dev
Cache directory: C:\Users\Gili\AppData\Local\NetBeans\Cache\dev

1. Given a class that implements an interface where one of the methods is not implemented.
2. Begin to type the method name, then hit CTRL+SPACE to trigger auto-complete.
3. IDE will display "Please wait..." that will never go away.
4. If you abort code-complete and try again... over and over again... it'll take 10-15 seconds until you get actual search results instead of "Please wait..."
5. In past releases, results were available immediately most of the time.

Expected behavior:
* Results should be available immediately.
* If they are not, "Please wait..." should display until results are ready.
* Once results are ready, "Please wait..." should be replaced with the search results without the user having to close the pop-up and repeat the operation manually.
Comment 1 Dusan Balek 2017-05-15 08:05:27 UTC
Unfortunately, I cannot reproduce the problem on my sources. Could you please create a profiler snapshot while waiting for code completion using the 'Profile the IDE action' (Alt+Shift+Y) and attach it to the issue? Thanks.
Comment 2 _ gtzabari 2017-05-17 02:13:55 UTC
Created attachment 164332 [details]
profiler snapshot

I wasn't able to reproduce this issue with a minimal project, but I could easy get it on a larger project consisting of 4 Maven modules. I simply launched the IDE, waited for CPU usage to drop to 0%, then I invoked code-complete in one of the classes. I had "please wait..." for 10-20 seconds. Please review the attached snapshot.
Comment 3 _ gtzabari 2017-05-17 02:21:17 UTC
I just reproduced the problem again and posted

The exception reporter is hinting that this issue might be a duplicate of bug #213907 but I don't see this problem in 8.2 final (meaning, this is a new regression for me).

I have run 8.2 on multiple machines with no problems. By comparison, I have run multiple nightly builds that came out after 8.2 and they all have this problem.