question: public static Class needClass ( String property ) throws NoSuchPropertyException { String value = needProperty ( property ) ; Class c = null ; try { c = Class . forName ( value ) ; } catch ( ClassNotFoundException e ) { throw new NoSuchPropertyException ( "Cannot find class `" + value + "'. Check property `" + property + "' in configuration files" ) ; } return c ; }
target:  Get a Class property from the underlying properties, throwing an exception if it is not defined.