First Step

[Ivan paterno]

Hi all, I am new in the Java community and i need some help to get 
started in the right way.
First of all, my goal is to implement a "new" type of annotation in the 
OpenJDK. Which repository i need to clone to perform this task?

Following the steps of this link 
(http://openjdk.java.net/guide/repositories.html) i configure mercurial 
but i don't know which repository clone 
(http://hg.openjdk.java.net/jdk9). I think the "dev" one but i want to 
be sure of this.

Thanks

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Ivan <castor91> Paterno
ivan.paterno at studenti.unimi.it