Crash when scrolling windows on screen

Technical Support & Bugs
1

I am reliably able to cause multiple Vassal mods to crash by clicking to scroll in windows. This does not seem to happen in the “main” window, but many others, such as other displays, or chart images for instance.

macOS v10.15.5 Beta (19F72f)

Model Identifier: MacBookPro16,1
Processor Name: 8-Core Intel Core i9
Processor Speed: 2.3 GHz
Number of Processors: 1
Total Number of Cores: 8
L2 Cache (per Core): 256 KB
L3 Cache: 16 MB
Hyper-Threading Technology: Enabled
Memory: 16 GB

Appears likely to have started with latest macOS beta.

Best regards,
MM

2

Thus spake imikem:

I am reliably able to cause multiple Vassal mods to crash by clicking to
scroll in windows. This does not seem to happen in the “main” window,
but many others, such as other displays, or chart images for instance.

macOS v10.15.5 Beta (19F72f)

Model Identifier: MacBookPro16,1
Processor Name: 8-Core Intel Core i9
Processor Speed: 2.3 GHz
Number of Processors: 1
Total Number of Cores: 8
L2 Cache (per Core): 256 KB
L3 Cache: 16 MB
Hyper-Threading Technology: Enabled
Memory: 16 GB

Appears likely to have started with latest macOS beta.

Which version of Java is this? Which version of VASSAL?

–
J.

3

Java (build 1.8.0_251-b08)

Tried with Vassal v3.2.17, and v3.3.0b2.

MM

4

Thus spake imikem:

Java (build 1.8.0_251-b08)

Tried with Vassal v3.2.17, and v3.3.0b2.

MM

Does it happen with test build 3.3.0-svn9383? Test builds are here:

vassalengine.org/~uckelman/tmp/

All of the 3.3.0 builds bundle Java for Macs. 3.3.0-beta2 had Java 13.
svn9383 has Java 14. It’s possible that will make a difference.

The sort of error output you posted is either due to a bug in Java or
a bug in something in your OS. Given that you said you’re running a
beta version of Mac OS, my guess is that it’s the latter. There’s not
much we can do about that.

–
J.

5

Same behavior with the svn9383 build. It does appear to be some bug or aggressive security action in the macOS beta here. I also narrowed it down to specifically clicking in scroll bar areas. Trackpad gesture scrolling works fine.

6

Thus spake imikem:

Same behavior with the svn9383 build. It does appear to be some bug or
aggressive security action in the macOS beta here. I also narrowed it
down to specifically clicking in scroll bar areas. Trackpad gesture
scrolling works fine.

Is there a place where you can report bugs against the Mac OS beta you’re
using? They’re going to be better positioned to say whether the bug is
theirs or in Java.

–
J.

7

Fyi, yes, multiple crash reports were submitted to Apple as well.

8

Thus spake imikem:

Fyi, yes, multiple crash reports were submitted to Apple as well.

If you get any replies from them, I’d like to know what they say.

–
J.

9

No reply or specific info received. However, with latest MacOS 10.15.5 the crashing issue in scrollbar areas is no longer reproducible. Thanks to whomever fixed that, presumably at Apple.

So this is resolved.
MM