How to convert a List<String> list to csv string
<p>I have a <code>List</code> of <em>Strings</em>. Is there a <em>Java</em> convenience method to convert this <code>List</code> to a <em>CSV</em> <code>String</code>? So "test1, test2, test3" is the result of a conversion of a List 3 String elements which contains "test1" "test2" "test3"</p>

<p>I could write the method myself to convert the <code>String</code> but maybe this is implemented by the <em>API</em> already ?</p>
