Thread by @xpvit

We moved our projects from #Java 11 to #Java 17 almost right after the LTS release. Here is a list of the Top 5 features that I have used and enjoyed for more than a year that may convince you to upgrade your projects. 🧵👇

`
record Point(int x, int y) {}
`

- this all you need to create POJO. No, constructors, getters, setters, etc. Just removed verbosity, which was disliked and criticized by many community members. 📓

Text blocks:
`String text = """
Long
formated
text.
""";
`
My SQL queries and JSON blocks in tests don't look like graveyards with all those `+.` ➕❌

Switch exceptions:
`
boolean isWeekend = switch (day) {
case SATURDAY, SUNDAY -> true;
default -> throw IllegalStateException("I's not weekend.");
};
`
More readable and less error-prone, and you won't forget to write a `break` at the end of the block. 💼

Pattern Matching for instanceof:
`if (x instanceOf String s) {
int length = s.length();
}
`

No more (casting) inside the block. The code is less messy.🚯

Helpful NullPointerExceptions:
`
person.wife.name = "Lidia";
`
throws:
Cannot assign field "name" because "person.wife" is null
java.lang.NPE: Cannot assign field "name" because "person.wife" is null

Finally, NPE describes exactly which variable was null.🥳

Sealed classes:
`
public abstract sealed class Event
permits Start, Launch, Stop {}
`
If you ever wanted more power over who is allowed to extend your classes.🛂

That's it. Thanks for reading.
If you are convinced to migrate to #Java 17 now, then like, retweet, and follow me for more content like this.
Happy Upgrade!🆙