question: public static boolean isPrimitiveOrWrapper ( Class clazz ) { Assert . notNull ( clazz , "Class must not be null" ) ; return ( clazz . isPrimitive ( ) || isPrimitiveWrapper ( clazz ) ) ; }
target:  Check if the given class represents a primitive (i.e. boolean, byte, char, short, int, long, float, or double) or a primitive wrapper (i.e. Boolean, Byte, Character, Short, Integer, Long, Float, or Double).