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Content Assist Lag when typing a new object. [message #1848188]

Wed, 24 November 2021 13:47

Christian Arcadio

Messages: 5
Registered: December 2020

Junior Member

Hi. On my installation, Eclipse lags every time I try to code a new object using Content Assist. I couldn't get any info regarding this, so I figured I would post something in here.

I posted a video file below to demonstrate this.

Attachment: Screencast from 11-24-2021 09:26:16 PM.webm
(Size: 356.34KB, Downloaded 83 times)

[Updated on: Thu, 25 November 2021 04:58]

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Re: Content Assist Lag when typing a new object with [message #1848192 is a reply to message #1848188]

Wed, 24 November 2021 14:56

Ed Willink

Messages: 7670
Registered: July 2009

Senior Member

Hi

I regularly see something similar though I haven't yet deviated from my development to extract a repro.

It seems to occur after after I've done some kind of refactor that introduces tens of errors. Each select/paste to correct one of the errors sends JDT off into lala land. I suspect that the errors cause quadratic or worse parsing problems. This latter theory is perhaps confirmed by the failure of context assist at "$" for "x.get$" until it is changed to "x.get$;" so that the ";" gives the parsing a chance to recover. I'm sure this was not a problem 5 years ago.

Regards

Ed Willink

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Re: Content Assist Lag when typing a new object with [message #1848208 is a reply to message #1848192]

Thu, 25 November 2021 04:51

Christian Arcadio

Messages: 5
Registered: December 2020

Junior Member

Hi.

It occurs on my install even after a fresh Eclipse installation with a new workspace.

Additionally, it seems that the lag kind of depends on the JRE used. I say this because between fresh projects using a different JRE on creation, content assist is noticeably slower on a project using Java8 JRE than on a project using Java16 JRE. Although, content assist still takes about ~10secs minimum when typing a new object with `new ...ObjectName`.

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