No validation when the osp-system-structure contains more than one output connected to the same input

[cesarcarc]

Setup:

• Configuration with two models (Damper and Mass, from tutorial example).
• Two outputs from the model Damper (df_0 and df_1) connected to the input from the model mass (in_f_u), as in the file attached (see next message).

Action 1:

• run the osp-validator on the configuration
  java -jar osp-cli.jar osp-system-structure -file "OspSystemStructure.xml"

Result 1:
No error!

Action 2:

• run the cosim-cli
  .\cosim.exe run "OspSystemStructure.xml"

Result 2:
Error message is shown:
error: Invalid system structure: Cannot establish connection between variables Damper1:df_1 and Mass1:in_f_u: Target variable is already connected to Damper1:df_0

I believe the osp-validator should be able to detect this type of error (multiple outputs connected to the same input), as this configuration would not run.

[cesarcarc]

Config.zip