This API documentation:

http://java.sun.com/products/jdk/1.2/docs/api/java/util/Collection.html#toArray(java.lang.Object[])

contains this text and code:

Suppose l is a List known to contain only strings. The following code can be used to dump the list into a newly allocated array of
       String:

            String[] x = (String[]) v.toArray(new String[0]);

Note that the List is called l in the prose and v in the code. The variable names should match.