How to throw an exception because the issue has no components in ScriptRunner postfunction

[Mouna Hammoudi]

I am using Scriptrunner and I would like to throw an exception because the issue has no components as shown below: 

How can I do that? 

I am using the following code and I am checking if the components are empty but the error is not thrown. How can I fix this?

package SuperFeature

import com.opensymphony.workflow.WorkflowException

def components = issue.components

log.warn("MOUNA COMPONENTS "+components)

if(components.empty) {

         log.warn("MOUNA EMPTY")

          throw new WorkflowException("Issue does not have components")

}

[Heiko Gerlach]

Hi All, 

even if Nic assumes that this is running in a validator, I recommend thinking about adding your business logic to a validator instead of a post function, this way you have a better control and can better communicate with the end user. I just evaluated this issue for myself and for me this is the better option.

BR

HEIKO

[Nic Brough -Adaptavist-]

Try simply

if (issue.components.empty) {
throw new InvalidInputException("You must enter at least one component.")
}

I am assuming this is being run as a validator, and you are on a recent-ish version of Scriptrunner (v 7.11 or above)