Meaning of the phrase "it is worth noting that" [closed]

I'm a little bit confused with the following phrase. I was reading an article about concurrency in Java and there was a sentence saying:

It is worth noting that both unlockRead() and unlockWrite() calls notifyAll() rather than notify().

This phrase seemed quite strange to me. What does it mean?

Solution 1:

"It is worth noting that"

simply means

• "here's something, which you should remember:" or

• "here's something you should pay attention to:" or

• "here's something that is worth reading and remembering:"

It's that simple.

Regarding (1), there is no connection at all to "apropos" or "besides..."

Regarding (2), it always means exactly the same thing. It simply means "Here's an interesting point:"

(There is utterly no connection in any way to "useless" or "costs nothing".)

It is worth noting that, the ELL site exists for basic questions about the meanings of phrases.