I need to create an array that contains the values of the attributes of an object, but Object.values(obj) does not work [closed]

I need to create an arraylist, that contains an array of objects to act as the rows of a table, like this:

ArrayList<Object[]> rows = new ArrayList<>();

each of these Object[] arrays will contain the values of the attributes of my Publisher class, like this example:

["123", "McGraw hill", "abc street uncanny valley"]

I know I can do this with either Object.values(p) or Object.keys(p). Since I have all my publishers in an arraylist I tried looping through it to fill the rows ArrayList:

for(Publisher p : publishers){ rows.add(Object.values(p)); } 

but the ide (Netbeans) says it cannot find the values or key method for the publisher class. The exact error message says:

cannot find symbol symbol: method values(Publisher) location class Object 

Why can't I use .value() ? Is there another way I can do this? All help is appreciated. Thanks!