System.out.printf("%s", new int[]{1, 2, 3})
).
Such a primitive-array argument may be confusing, as it will be wrapped as a single-element array, rather than each individual
element being boxed, as might be expected.
Example:
String.format("%s", new int[]{1, 2, 3});
After the quick-fix is applied:
String.format("%s", (Object) new int[]{1, 2, 3});