Insert special characters in java.util.Date type
<p>In this <code>invprbm.setFollowUpDate()</code> is <code>java.util.Date</code> type.<br>
If the given value is empty, I have to set <code>followUpDate</code> as special characters <code>- -</code>, e.g.:</p>

<pre><code>SimpleDateFormat formatter = new SimpleDateFormat("- -");
invprbm.setFollowUpDate(formatter.parse("- -"));
</code></pre>

<p>In this scenario I am getting a value like <code>Thu Jan 01 00:00:00 IST 1970</code> instead of the expected <code>- -</code>.</p>
