@thomasnield What about this cousin?! 🙂 Does he have administrator rights here on Slack? 😂

Hello @archivebot, are you human?

Where is Alan when you need him?!

@edvin haha I keed. I make an Italian mobster joke

Well played.

Question to everybody: I am now investigating strange memory leaks out of JavaFX bindings. I think they appeared after I added background threads, but I might be wrong. Do you know any good/simple guide for troubleshooting those things?

I just tried an elaborate joke myself with the Alan thing.

You referring to the gopher? Haha I loved that

#turingtest for the @archivebot

Haha, I remember that guy. But I was talking about Alan Turing

Haha I tangented far on that didn't I?

Really. Good that I had seen that gopher thing 🙂 I remember my wife laughed for days of that thing 😂

@archivebot this statement is false

Haha, I just started playing the video and my wife instantly started laughing from the sofa

@voddan I use jvisualvm to detect memory leaks. you can search through the objects for specific classes you think might not be getting reclaimed

Thanks! I'll try it out!

Have you met something specific on bindings? I was hoping for a book ala "rx untipatterns"

bindings and listeners in general can have memory problems

There is a construct called WeakReference which doesn't get enough usage in Java programs. It's important in other languages to avoid circular references. One side is strong and that can use a normal declaration. The other side is of type WeakReference. This can sometimes help untangle things in cases where two objects hold references to each other.

Sometimes, you'll also need to remove listeners. I haven't had to unbind() my javafx code because of a memory leak.

just a quick one:

@User uploaded a file: Untitled

I use this a lot when I have a treetable (in this case, but can work with a normal treeview too) to open all the kids, Is this the normal way or am I missing something?

@edvin you mentioned an eventBus but I was in the understanding that currently tornadofx 🌪️ does not have one?

@carlw You're absolutely right. I have thought about using WeakReference in some places in TornadoFX, but I don't want to optimize before it's needed, because using it adds a lot of ugly boilerplate. Some time we might need to though.

@ron You can specify the

itemFactory

parameter to

populate

and set

isExpanded = true

directly when it's created 🙂

@ron TornadoFX doesn't need an event bus, because JavaFX already has one. We might need one or two convenience functions, that's all.

We could actually couple the event bus with scopes...