Hi,
I tried using the 'null' property type as mentioned in the TOSCA simple YAML 1.0 specification. I get the validation issue saying that the datatype specified in the service template is an unknown datatype. I just surfed through the code and found that 'null' is considered as one of the primitive datatypes. But when it is validated if its a primitive datatype, a class object of Null() is passed as a value. The validation fails as it expects a string value of 'null'. Is this a known issue? Do we have a JIRA item opened for this? Thanks, /Vaish