public static InstanceService getInstanceService ( ) { if ( instanceService == null ) { try { Class clazz = Class . forName ( INSTANCE_SERVICE ) ; instanceService = ( InstanceService ) clazz . newInstance ( ) ; } catch ( ClassNotFoundException | InstantiationException | IllegalAccessException e ) { LOGGER . warn ( "Cannot instanciate util: {}" , e . getMessage ( ) ) ; throw new IllegalStateException ( e ) ; } } return instanceService ; }
Retrieve InstanceService implementation