Broken diagram with nested rectangles and remove @unlinked

Question

Hello - 

I have a large diagram with several nested rectangles.   I then added the ability to only link certain sections of the diagram and use "remove @unlinked" to trim down what is rendered.  When using this, I get an error when attempting to render the diagram with version 1.2021.4 (via Kroki).

I've simplified the diagram down to a base case to reproduce this issue:

@startuml Broken

rectangle "==Outer 1" as o1 {

rectangle "==Outer 2" as o2 {

rectangle "==Inner" as inner

}

}

rectangle "a" as a

rectangle "b" as b

a -> b

remove @unlinked

@enduml

Comments

Hello A.,

See similar defect here:

• https://forum.plantuml.net/11415/remove-@unlinked-cannot-find-color-some-sub-elements-linked
• https://forum.plantuml.net/11414/remove-@unlinked-illegalstateexception-some-groups-empty
• https://forum.plantuml.net/11052/remove-unlinked-components?show=11133#c11133

Then, a workaround is to add dummy void element, as:

@startuml
rectangle "==Outer 1" as o1 {
[void]
remove void
rectangle "==Outer 2" as o2 {
rectangle "==Inner" as inner
}
}

rectangle "a" as a
rectangle "b" as b
a -> b

remove @unlinked
@enduml

If that can help,
Regards,
Th.

Answer 1

Many thanks for the report.
This is fixed in last beta http://beta.plantuml.net/plantuml.jar and on the online server.

Tell us if it's not working for you!

Regards,

http://www.plantuml.com/plantuml/uml/ut8eBaaiAYdDpU7YAafDBadCIyz9LL2ojVKlBKajKZ1KKaWiLiWtLAZcuiGYRGIHDW99eyfxvkMb5e5bCq4iBivQhbfa2nB1Sed8GabWeIIkH0LTEo05bChDBqjLS2ZDoydCoqvDuU9oICrB0ReK0000