Scala 2 BeanProperties are set twice when used in output type

[MateuszKubuszok]

When we create Java Beans in Scala 2 using @BeanProperty it will have 2 setters for each @BeanProperty val foo: Foo property:

def setFoo(foo: Foo): Unit
def foo_=(foo: Foo): Unit

Both of them will be called when setting up things in derived type class.

Find a reasonable way to avoid issues with this case e.g.

• preferring only calling foo_= when both methods can be proven(?) to be generated by annotation
• ditto but preferring setFoo
• calling both of them BUT ensuring that pipe converting value to output type will be only called once (limiting side effects and computations in converter but ensuring that both fields are called)
• using a flag to decide between behaviors above and selecting one of them as the default