Given no arguments, the Collections.toArray method returns an Object [], which will cause a
ClassCastException at runtime if you try to cast it to an array of the proper class. Instead, pass an array of the correct type in to the
call.
public String [] getStringArray(List<String> strings) {
return (String []) strings.toArray(); // Noncompliant; ClassCastException thrown
}
public String [] getStringArray(List<String> strings) {
return strings.toArray(new String[0]);
}