I have no idea what this test is looking for

Question

assertEquals(Modifier.STATIC | Modifier.PRIVATE, d.getClass().getDeclaredField("TYPES").getModifiers());

I have a fixed array that I wrote as a field like this: private String[] TYPES;

and I initialized it like this:

   TYPES= new String[3];
   TYPES[0]="surveillance";
   TYPES[1]="missile";
   TYPES[2]="bombing";

Am i doing something wrong?