I'm reading effective java and at some point it mentions WeakReferences which got me to searching if it exists in Kotlin as well. I've been using kotlin for about 2 years, but never had a need to use it. Is

WeakReference

something that's popular? Should I be using it in some typical situations of development? I understand that I won't be using the entire std-lib, but references are everywhere and so it seems like I should have come across a valid use of WeakReference by now (I mostly build android apps if it helps)

weakreferences are useful in some situations where you care about memory management, but in most other situations they are better avoided i think