Input Validation #6

Hello,

Thank you for your work on this extended validation. This is very helpful.

I am using graphql-java-kickstart with a very basic schema, and noticed that input used as arguments of a mutation would not be validated unless in an array with its own rule.

Example:

input UserInput {
  name: String @Size( min : 2, max : 255)
}

mutation {
  #does not trigger validation
  createUser(userInput: UserInput): User 
  #does not trigger validation
  createUser(userInputs: [UserInput]): [User]
  #trigger validation on both arguments and inputs
  createUser(userInputs: [UserInput] @Size( min : 0, max : 1)): User
}

Am I missing something? Is it the intended behavior or a restriction of graphql-java-tools (if so, it should be documented)?