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Bug 255786 - The IDE's vertical scrollbar thumbs disappear when the window is resized to > ~25% [using Nimbus Dark]
Summary: The IDE's vertical scrollbar thumbs disappear when the window is resized to >...
Status: RESOLVED WONTFIX
Alias: None
Product: platform
Classification: Unclassified
Component: Window System (show other bugs)
Version: 8.1
Hardware: PC Windows 8
: P3 normal with 1 vote (vote)
Assignee: Stanislav Aubrecht
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-10-07 20:12 UTC by bdschubert
Modified: 2016-05-16 07:38 UTC (History)
1 user (show)

See Also:
Issue Type: DEFECT
Exception Reporter:

Attachments
IDE log (69.21 KB, text/plain)
2015-10-07 20:12 UTC, bdschubert 		Details
Scrollbar missing in Navigator (192.68 KB, image/png)
2015-10-08 12:55 UTC, bdschubert 		Details
Navigator scrollbar reappears when window is enlarged. (199.96 KB, image/png)
2015-10-08 12:59 UTC, bdschubert 		Details
Scrollbars missing on Projects and Editor windows (198.06 KB, image/png)
2015-10-08 13:02 UTC, bdschubert 		Details
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Description bdschubert 2015-10-07 20:12:04 UTC 
Product Version = NetBeans IDE 8.1 RC (Build 201510012201)
Operating System = Windows 8.1 version 6.3 running on amd64
Java; VM; Vendor = 1.8.0_60
Runtime = Java HotSpot(TM) 64-Bit Server VM 25.60-b23

Reproducibility: Happens every time

Appearance Settings:
Look and Feel = Nimbus Dark
Maximize use of native look and feel = Enabled

STEPS:
  * Open any window
  * Resize the window vertically

ACTUAL:
  The vertical scrollbar thumb grows and shrinks proportionally to the window size, but it appears that it does not have a minimum size constraint, so it is allowed to shrink to "zero".

EXPECTED:
  The thumb should shrink to a defined minimum size and no smaller
Comment 1 bdschubert 2015-10-07 20:12:08 UTC 
Created attachment 156605 [details]
IDE log
Comment 2 Jiri Kovalsky 2015-10-08 10:51:22 UTC 
Reassigned for further evaluation. BTW, I cannot reproduce it or I didn't understand the description correctly. Can you attach a screenshot? Thanks!
Comment 3 bdschubert 2015-10-08 12:55:34 UTC 
Created attachment 156620 [details]
Scrollbar missing in Navigator

The Navigator contains a long list of entries.
Comment 4 bdschubert 2015-10-08 12:59:45 UTC 
Created attachment 156621 [details]
Navigator scrollbar reappears when window is enlarged.

The Navigator window was enlarged enough that the scrollbar reappeared. 
The Project window and Editor windows have been reduced in size so that the scrollbar thumbs are are at their minimum size.
Comment 5 bdschubert 2015-10-08 13:02:41 UTC 
Created attachment 156622 [details]
Scrollbars missing on Projects and Editor windows

The Projects and Editor windows have been reduced in size slightly and the  vertical scrollbars disappeared.
Comment 6 bdschubert 2015-10-08 13:07:43 UTC 
Clarification: In my screenshots, I said the scrollbar is missing, when I meant to say the vertical scrollbar's "thumb" is missing.
Comment 7 bdschubert 2015-10-08 13:16:56 UTC 
The problem is that the scrollbar "thumb" disappears when it reaches its minimum size. The scrollbar is still functional, just the thumb is missing.  Surprisingly, you can drag the "phantom" thumb.

Note: The problem occurs in both Nimbus and Nimbus Dark L&Fs.  The problem did not replicate in the Windows L&F.
Comment 8 bdschubert 2015-10-08 13:37:38 UTC 
I cannot replicate the problem using the Dark Metal L&F.
The issue appears to be isolated to the Nimbus and Nimbus Dark L&Fs.
Comment 9 homberghp 2015-12-10 06:57:44 UTC 
Same effect on Linux.
with nimbus there the scrollbar thumb is also missing.

$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 14.04.3 LTS
Release:	14.04
Codename:	trusty
hom@hom-ebook: ~/sebi/pro1/trunk/30_practical/yahtzee2/solution/evaluatortest
$ java -version
java version "1.8.0_66"
Java(TM) SE Runtime Environment (build 1.8.0_66-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.66-b17, mixed mode)
hom@hom-ebook: ~/sebi/pro1/trunk/30_practical/yahtzee2/solution/evaluatortest
$
Comment 10 Martin Entlicher 2016-05-16 07:38:44 UTC 
This is a Nimbus L&F bug:
https://bugs.openjdk.java.net/browse/JDK-8134828