Classpath isolation is part of the JEE (and now Jakarta EE) specification for application servers. This guarantees that the application servers can host multip

Classpath isolation is part of the JEE (and now Jakarta EE) specification for application servers. This guarantees that the application servers can host multiple applications without the classes in one application bring used in another. More concretely, if one application packages log4j 1.2 and another packages log4j 2, the application servers guarantees that the two log4j libraries are isolated and do not interfere with each other.