allow_mixing doesn't work with sequence diagram

Question

The output of below script is failing with

If i remove allow_mixing it works fine. I need to mix sequence diagrams with component diagrams or class diagrams . Can you please let me know how to mix the diagrams for the same plantuml script.

@startuml
allow_mixing
actor User
participant "First Class" as A
participant "Second Class" as B
participant "Last Class" as C

User -> A: DoWork
activate A

A -> B: Create Request
activate B

B -> C: DoWork
activate C
C --> B: WorkDone
destroy C

B --> A: Request Created
deactivate B

A --> User: Done
deactivate A
@enduml

Answer 1

It does not really make sense to mix up sequence and class diagram.

Could you post here an image of what you are looking for ? This will help us to understand your need.

Thanks!

Comments

Here is an example showing my requirement.
Basically i wanted to show at which stage of sequence what all members of a class are filled.
Just arranged rectangles to mimic sequence diagram for visualization in this example.

@startuml
allow_mixing
rectangle "Actor A" as TopActorA
rectangle "Actor A" as BottomActorA
rectangle "Initialization" as InitA
rectangle "Run" as RunA
rectangle "Close" as CloseA
TopActorA -down[#black]- InitA
InitA -down[#black]- RunA
RunA -down[#black]- CloseA
CloseA -down[#black]- BottomActorA

rectangle "Actor B" as TopActorB
rectangle "Actor B" as BottomActorB
rectangle "RunB" as RunB
TopActorB -down[#black]- RunB
RunB -down[#black]- BottomActorB

rectangle "Actor C" as TopActorC
rectangle "Actor C" as BottomActorC
rectangle "RunC" as RunC
TopActorC -down[#black]- RunC
RunC -down[#black]- BottomActorC

RunA -right-> RunB
RunB -> RunB
RunB -right-> RunC

class ProgramData{
Data1
Data2
Data3
Data4
}
RunA -[#blue]right-> ProgramData::Data1
RunB -[#blue]right-> ProgramData::Data2
RunB -[#blue]right-> ProgramData::Data3
RunC -[#blue]right-> ProgramData::Data4
@enduml

Or you can look at the image by using the link below:
http://www.plantuml.com/plantuml/png/ZP2zJyCm4CLt_nLMcJEGTkg0ceI53I4sLA4ZjOA5Fv1zKH68_vtwOaMsewWipn_lvtTtFdW4XwDM39IovrSjlwGPc1CzWXcKu9kcH-jui-7W-RFzf6Ep1hGMqUebys0aIb3o6r1QGsYuofYdSJ8kQtRVAUi5ERHhsDm5hqxsR5vktXJq7ySgHfAM5eK6AOsOIKjfvkCiPswpJsbNW3IbBGQUWB1XSqpP1Bb1IYFBNHRlikww5I1DwOhk9Y1is1nJDa5kaCB8S-FNEpcyOtMNZ9GUCl_ofbVWFNzqTd2Wxm7XXmMz9Qr9jwGxzXiBXFAZECQSzEr-Js-fq7Mk_YUtfT6lSpjs4EOqQlK7

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Any updates to this issue ?