During Devoxx Morocco I’ve spent some time coding a little new tool where the main reason was to have a widget on my MacOS desktop that shows the days until the next release/update of OpenJDK. Because this alone was not enough to get it into the Mac App Store, I needed to add more functionality and so I’ve decided to …

As Java developers, we all have it installed on our computer: the Java Development Kit, also known as the JDK. I remember putting the first version on a few floppy disks back in 1995. Since then it has grown multiple times. In this article, we’ll explore the files of the JDK. For this article, Eclipse Temurin JDK 21 for Windows …

Debugging is one of the most common tasks in software development, so one would assume that all features of debuggers have ample coverage in tutorials and guides. Yet there are three hidden gems of the Java Debugging (JDWP) agent that allow you to delay the start of the debugging session until… you gave orders via jcmd (onjcmd=y option) the program …