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 ...

Anyone here successfully install the pure-Java Cloudscape RDBMS? Anyone here familiar with setting the CLASSPATH under OSX? Anyone here familiar with setting an environment variable under OSX?

There’s nothing worse than installing your favorite Java-based application — such as Minecraft, Maven, Jenkins or Apache Pig — only to run into a JAVA_HOME is ...

The initial $ {CLASSPATH} is to preserve the previous contents of the classpath variable, in case it was already set. This is generally a good idea when amending path-ish environmental variables.