//get all jars associated with this addon
URL[] addOnURLs = getURLList(addOnsManifestsMap.get(addOnName));
logFine(" addon: " + addOnName + " urls: " + addOnURLs);
//create a URLClassLoader for this addon - parent set to shared classloader
ASURLClassLoader addonClassLoader = new ASURLClassLoader(addOnURLs, _sharedClassLoader);
//keep a map so that we can remove it during uninstall-addon
addonsMap.put(addOnName, addonClassLoader);
//add it to the AddOns chain
_addOnsChain.addToList(addonClassLoader);