question: public static void register ( Class < ? extends ResourceResolverSpi > className , boolean start ) { JavaUtils . checkRegisterPermission ( ) ; try { ResourceResolverSpi resourceResolverSpi = className . newInstance ( ) ; register ( resourceResolverSpi , start ) ; } catch ( IllegalAccessException e ) { log . log ( java . util . logging . Level . WARNING , "Error loading resolver " + className + " disabling it" ) ; } catch ( InstantiationException e ) { log . log ( java . util . logging . Level . WARNING , "Error loading resolver " + className + " disabling it" ) ; } }
target:  Registers a ResourceResolverSpi class. This method logs a warning if the class cannot be registered.