Nonzero-length arrays are mutable. Declaring one public static final indicates
that the developer expects it to be a constant, which is not the case. Making it
public is especially dangerous since clients of this code can modify the
contents of the array.
There are two ways to fix this problem:
ImmutableList.private and add a public method that returns a copy of
the private array.See Effective Java 3rd Edition ยง15 for more details.
Suppress false positives by adding the suppression annotation @SuppressWarnings("MutablePublicArray") to the enclosing element.