Ball thrown to oneself off backboard - legal?

[BillyMac]

Originally Posted by Nevadaref

If a player doesn't cause the released ball to contact the floor, then the action doesn't qualify as a proper dribble. That is precisely why it is illegal.

Which illegal act has the player accomplished (see below)?

9-5: Illegal Dribble: A player shall not dribble a second time after his/her first dribble has ended,
unless it is after he/she has lost control because of:
ART. 1 A try for field goal.
ART. 2 A touch by an opponent.
ART. 3 A pass or fumble which has then touched, or been touched by,
another player.

Let's make this as simple as possible and leave the backboard, and the throw out of it.

Play: A1 ends his dribble, intentionally throws the ball in the air, runs several feet, and catches the ball that hasn't touched the floor.

Travel, or illegal dribble?

4-44-3: Travel: The pivot foot may be lifted, but not returned to the floor, before the ball is released on a pass or try for goal.

It's not a try, nor a pass, nor a fumble.

I don't believe that it's even a dribble, illegal, or otherwise.

4-15: Dribble: ART. 1 A dribble is ball movement caused by a player in control who bats
(intentionally strikes the ball with the hand(s)) or pushes the ball to the floor once
or several times. It is not a part of a dribble when the ball touches a player’s own
backboard.
ART. 2 During a dribble the ball may be batted into the air provided it is
permitted to strike the floor before the ball is touched again with the hand(s).
ART. 3 The dribble may be started by pushing, throwing or batting the ball
to the floor before the pivot foot is lifted.

The ball is thrown into the air, not batted in into the air.

It's not a legal dribble. It's not an illegal dribble. It's not a dribble. It's a travel.