The [getAssociatedToEntities] action in [X] accepts a parameter of type [java.util.List]

Question

Context

I have a project in Grails 2.4.4 using Spring Security Rest Plugin 1.5.4 for Grails along with Spring Security Core 2.0.0 and I'm getting this warning:

Warning |
The [getAssociatedToEntities] action in [security.UserController] accepts a parameter of type [java.util.List].  Interface types and abstract class types are not supported as command objects.  This parameter will be ignored.

       @Secured("hasAnyRole('READ__USER', 'READ__PROFILE')")
       ^

This is the code...

BuildConfig

//...
compile "org.grails.plugins:spring-security-core:2.0.0"
compile "org.grails.plugins:spring-security-rest:1.5.4"
//...

UserController (the code where the warning comes from!)

@Secured("hasAnyRole('READ__USER', 'READ__PROFILE')")
def getAssociatedToEntities(List<Long> e, SearchCommand cmd){
    //code omitted
}

Question:

How can I get rid of that warning?

Thanks in advance!

Answer 1

java.util.List is an Interface which cannot be used as a Command Object, try this instead:

Create a Command Object with the list inside

import grails.validation.Validateable

@Validateable
class SearchListCommand extends SearchCommand {
  List values
}

and replace the declaration of the List with the Command Object in the getAssociatedToEntities action

def getAssociatedToEntities(SearchListCommand listCommand) { 
     //code omitted...
}