The keywords you refer to in your link are all "classic" keywords. The last one that was added was "assert" with Java 1.4, which broke a lot of code. And made p

The keywords you refer to in your link are all "classic" keywords. The last one that was added was "assert" with Java 1.4, which broke a lot of code. And made people realize that adding new "classic" keywords was a bad idea. Now, Java only adds contextual keywords. Which are basically a sequence of Java letters that are tokenized as a keyword in certain contexts but as an identifier in all other contexts. var, record, inline, module, ect. are examples hereof. You can read more about it in this JEP Draft about "keyword management for the Java Language": https://openjdk.java.net/jeps/8223002 https://openjdk.java.net/jeps/8223002