Split function not being recognised

I'm trying to randomly shuffle an input retrieved from database. So far I'm able to add the retrieved value to the list. Because i want to the shuffle them, I'm trying to split the word into individual letters..Like ['l','i','s','t'] for eg. But the split function doesn't work. Where am I going wrong?

<%@page contentType="text/html" pageEncoding="UTF-8" %>
<%@page import="java.sql.*"%>
<%@page import="java.util.*"%>
<%@page import="java.lang.*"%>
<%
String vlemail=request.getParameter("lemail");
try
{
String str="jdbc:mysql://localhost:3306/user";
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection con=null;
con=DriverManager.getConnection(str,"root","");
Statement st=con.createStatement(); 
ResultSet rs =st.executeQuery("select pwd from utable where email='"+vlemail+"'");
ArrayList<String> list=new ArrayList();
while(rs.next())
{

list.add(rs.getString("pwd"));
out.println(list);
List splitlist=list.split("(?!^)");
Collections.shuffle(splitlist);
out.println(splitlist);
}
out.println("Retrieved" );
}
catch(Exception e)
{
out.println(e);
out.println("Not retrieved");
}
%>