<-> syntax breaking in component diagram

Question

Using <-> in a simple component diagram yields weird results. Using the long arrow version <--> or longer does work as intended.

Tested using PlantUML Web Server [PlantUML Server 20130918 / version 1201719]

Example 1 - Basic

For instance, this code :

@startuml [Component 1] <-> bar_interface @enduml

results in :

Whereas the long arrow version :

@startuml [Component 1] <--> bar_interface @enduml

Works correctly :

---

Example 2 - with a grouping component

The behavior differs a bit with grouping components.

@startuml node "foo" [Component 1] <-> bar_interface @enduml

Results in :

The long arrow version also works as intended

Answer 1

Many thanks for the report.

There are some bugs in GraphViz and PlantUML tries to turn arround those...

This should work better in last beta http://beta.plantuml.net/plantuml.jar

BTW we are looking for someone that could help us to report those bugs to GraphViz team. If you want to help, please send us a mail!