ClassLoaders

Class Loader Types
  JVM Classloader [ bootstrap, extentions, classpath ]
  Extensions ClassLoader
  lib\app Classloader
  Server Classloader
  Application Classloader
  Module Classloader

Classloader Mode
   PARENT_FIRST
   PARENT_LAST

Classloader Policy
   SINGLE
   MULTIPLE

WAR Classloader Policy
   APPLICATION
   MODULE