Composition with Jointable

I have a case where my entity A has 2 oneToMany relations with an entity B. both of them are compositions (B cannot exist without A)

Can this be modeled by using both oneToMany, Composition and JoinTable?

The docs state

JoinTable Defines a join table on the owning side of ManyToMany relationship.

In hindsight,

decided to just go for an association class ListOfBs that has a oneToMany to B. now i can have multiple OneToOne relations from A to ListOfBs.