Stencyl freezes when entering a long game attribute / behaviour name

[dtishin]

When I'm creating a new game attribute or a new actor behaviour, and enter a long game attribute name (especially if I erase and re-type while entering the name), the engine freezes at some point, which requires shutting down Stencyl from the Task Manager (and any unsaved progress is lost).  If there is a length limit for names of classes, the engine shouldn't allow to violate it.
See a sample screenshot from Stencyl engine console attached: https://drive.google.com/open?id=1LATVBxeArcUFtpsqyGwiufYA18sdtLIf

• Tags added: swing

[Justin]

There's no length limit or anything, at least within reasonable limits (30 or so characters is probably still reasonable, but that might end up hitting some other limits elsewhere down the line). I can type as many characters as I want there and not run into any lag. The logic we're running doesn't seem to be something that should cause any serious delay, either. Perhaps a Swing bug?

[dtishin]

What's Swing? I've got a swing in my backyard but that's not it I guess!
How do I help you debug this? What should happen if I hit the 30 character limit in the correct scenario? This can be pretty annoying, as the game freezes and any unsaved progress lost.

[Justin]

Swing is the UI framework built in to Java (the window, buttons, text fields, labels, etc, and even design mode and the scene designer, all built on top of Swing). In the correct scenario, nothing happens at all. Nothing slows down and nothing crashes.

Although now that I take another look, you didn't mention any slowdown. You simply said that it freezes at some point. Is there any perceivable lag before that happens, or does it just occur suddenly?

[dtishin]

I manage to reliably reproduce the bug when I type the name really fast.
At some point Stencyl freezes and the CPU goes crazy.
Please see the GIF here: https://drive.google.com/open?id=1R8dAtP8ASm3YRgy9JD5UvFMZqfMH8p2S

• Tags added: 4.0.3
• Tags removed: swing

[Justin]

Fixed in private b10553. Will be available in public release 4.0.3.

• Issue Assigned from (none) to Justin
• Status changed from New to Resolved

• 4.0.3