Throw when AddonRegistry().getServices(Class) finds nothing ----------------------------------------------------------- Key: FURNACE-105 URL: https://issues.jboss.org/browse/FURNACE-105 Project: Forge: Furnace Issue Type: Feature Request Components: Addon Manager Affects Versions: 2.20.1.Final Reporter: Ondrej Zizka This is just a suggestion to strenghten the contract of getServices(Class). Often, the code looks like this: {code} furnace.getAddonRegistry().getServices(GraphApiCompositeClassLoaderProvider.class).get(); {code} And all works until something goes wrong with the addons setup. In that case, getServices() returns null and it may end up with user seeing a NullPointerException with a nasty stacktrace. For the sake of better usability, I suggest that there could be 2 methods, getServices() which would throw an informative exception if no such services are found, and findServices() which would return null, as the current getServices() does.