// using an array

arrayFeeder(new Map[] {

  Collections.singletonMap("foo", "foo1"),

  Collections.singletonMap("foo", "foo2"),

  Collections.singletonMap("foo", "foo3")

}).random();

​

// using a List

listFeeder(Arrays.asList(

  Collections.singletonMap("foo", "foo1"),

  Collections.singletonMap("foo", "foo2"),

  Collections.singletonMap("foo", "foo3")

)).random();