JDK 25 is an LTS release, the second on Oracle’s new two-year LTS cadence (after 21), and it lands with meaningful language ...
But how many developers understand how HashMap works internally? A few days ago, I read a lot of the source code for java.util.HashMap (Java 7 followed by Java 8) to gain a deeper understanding of ...
Make sure you have Java 8+ and a compatible Docker environment installed. If you are going to use Maven build tool then make sure Java 17+ is installed. For example: $ java -version openjdk version ...