Some Eclipse Foundation services are deprecated, or will be soon. Please ensure you've read this important communication.
Bug 425994 - Exception during autocompletion
Summary: Exception during autocompletion
Status: CLOSED FIXED
Alias: None
Product: z_Archived
Classification: Eclipse Foundation
Component: Recommenders (show other bugs)
Version: unspecified   Edit
Hardware: PC Windows 7
: P3 major (vote)
Target Milestone: ---   Edit
Assignee: Andreas Sewe CLA
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-01-17 10:22 EST by Roman Dawydkin CLA
Modified: 2019-07-24 14:36 EDT (History)
1 user (show)

See Also:

Attachments
exception stack trace (6.22 KB, text/plain)
2014-01-17 10:22 EST, Roman Dawydkin CLA 		no flags Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Roman Dawydkin CLA 2014-01-17 10:22:55 EST 
Created attachment 239100 [details]
exception stack trace

Exception occurs sometimes during using autocompletion. There is nothing notable in editor, it's only in error log. After that, some navigation keys stop working (Home, End, Ctrl+Up, Ctrl+Down, maybe others). Only restart helps. Although there is no "recommenders" in stack trace, it does not happen in Eclipse without Recommenders installed.

Using Eclipse 4.3.1.
Comment 1 Andreas Sewe CLA 2014-01-17 10:43:17 EST 
FWIW, I recently had to override isValidPrefix(String prefix) in EmptyCompletionProposal to cause a NPE from appearing (See Bug 425005). Maybe we can solve this in a general fashion.
Comment 2 Roman Dawydkin CLA 2014-01-18 15:18:41 EST 
I installed plugin from "Head" update site (version 2.0.5.v20140116-1301) and after a while got exactly the same exception.
Comment 3 Andreas Sewe CLA 2014-01-21 08:11:12 EST 
Thanks for testing with the current head.

I was able to reproduce this problem. The proposed fix is in Gerrit [1].

[1] <https://git.eclipse.org/r/#/c/20866/1>
Comment 4 Andreas Sewe CLA 2014-01-21 10:51:32 EST 
Fix is deployed on the head update site.

Please close as fixed (or re-open).
Comment 5 Andreas Sewe CLA 2014-01-27 06:21:47 EST 
Closing for now.
Comment 6 Roman Dawydkin CLA 2014-01-27 06:24:11 EST 
A little late, but... Running latest version for serveral days, no exception happened so far. I guess, it's closed.
Comment 7 Andreas Sewe CLA 2014-01-27 06:36:24 EST 
(In reply to Roman Dawydkin from comment #6)
> A little late, but... Running latest version for serveral days, no exception
> happened so far. I guess, it's closed.

No problem. Glad that this solves your problem. Will release the fix as part of 2.0.5 tomorrow.