Another throw in question

[k2explorer]

Hi all,

I had a situation where A1 had the ball for a spot throw-in on the side. She wanted to throw the ball up the court, so she threw the ball, it landed on the out of bounds line before going to A2. I blew the whistle for a violation and awarded the ball to B. The coach questioned me and I said it hit the line. He was puzzled. The other ref, who is a veteran, also questioned me and said I was wrong to do that.

I couldn't find anything in the rules but it says the ball has to be thrown directly into the court. This was NOT directly into the court.

How wrong was I???