1Z0-819-J done

Hi all.
I've today taken and passed the 1Z0-819-J exam with a score of 85%.
I was actually preparing for the 817 exam since I already have the OCPJP8, but at my workplace we decided to give it a try since it costed only 25$, so I had to prepare all the rest in kind of 2 days.
I used the book from Boyarsky & Selikoff and I didn't find it so precise like when I took the Java 8 exam.
For example, in the security chapter is completely missing a part on own to use the AccessController and in the NIO chapter the channels are missing (yes, I got one question about channels).
Therefore, it has not been easy like in the past, but it went through anyway

Congratulations Cosimo !

It's sometimes hard to spot all topics/classes in the scope of exam because objectives not very detailed.

For this reason Scott wrote a supplemental article on the security topics which are not in the book - https://www.selikoff.net/2020/11/05/819-security/

Mikalai Zaikin wrote:Congratulations Cosimo !

It's sometimes hard to spot all topics/classes in the scope of exam because objectives not very detailed.

For this reason Scott wrote a supplemental article on the security topics which are not in the book - https://www.selikoff.net/2020/11/05/819-security/

Oh, that's good to know it although it's a bit too late

That said, since I got some of those questions in the mocks from Enthuware, I ended up reading the official documentation, which is quite clear on the topic. In particular:

https://docs.oracle.com/javase/8/docs/technotes/guides/security/doprivileged.html

https://www.oracle.com/java/technologies/javase/seccodeguide.html

Do you know if it's possible to communicate to Oracle that one question was wrong? (I mean, all the answers)