In this tip, I'd like to show a simple technique that allows switching between multiple versions of the code at runtime. Often, when I'm testing a new solution, I'd like to run an old version and make ...

Alicia Dwyer Cianciolo overviews NASA's plans to land the first woman and person of color on the Moon, describes the complexity planned with each mission, and how that complexity is being managed. In ...

Java 18's Simple Web Server lets you use a command-line tool or API to host files and more. Here's how it works. One of the handiest new features included in the Java 18 release (March 2022) was the ...

Developers who have used Tomcat in any significant way are likely already familiar with using the environment variable JAVA_OPTS to specify how much memory should be allocated for an instance of ...

For Java-based programs such as Maven, Jenkins, Gradle or Tomcat to run, they need to know that Java's JDK is installed. That's the purpose of the JAVA_HOME environment variable. It tells programs ...