1. Vulnerability Description

• In Scala’s convention, methods without parentheses must ensure that there are no side-effects, but side-effects may exist if they return Unit.

2. Vulnerability Countermeasure

• Define the method by generating empty parentheses.

3. Sample Code

• Vulnerable Code

object Test {
   def paramless: Unit = ()
}

• Safe Code

object Test {
   def params(): Unit = ()
}