incompatible types, expected hashmap found String
<pre><code>public class Readparam
{
    private static String method_name;
    public static HashMap&lt;String, Vector&lt;String&gt;&gt; getParameters(String file_name)
    {
        HashMap temp_map = new HashMap();

        String current_dir = System.getProperty("user.dir");

        File new_file = new File(current_dir + "\\parameters\\" + file_name);

        StringTokenizer stringtok = null;
        StringBuffer temp_contents = new StringBuffer();

        BufferedReader input = null;
        try
        {
            input = new BufferedReader(new FileReader(new_file));
            String current_line = null;

            while (((current_line = input.readLine()) != null) &amp;&amp; (current_line.length() &gt; 0))
            {
                stringtok = new StringTokenizer(current_line, "(");

                method_name = stringtok.nextToken();

                String parsed_parameters = current_line.subSequence(current_line.indexOf("(") + 1, current_line.indexOf(")")).toString();

                StringTokenizer paramtok = new StringTokenizer(parsed_parameters, ",");

                String[] parsed_string = parsed_parameters.split(", ");
                String parsing = method_name + "(";

                for (int i = 0; i &lt; parsed_string.length; i++)
                {
                    String[] temp_parse = parsed_string[i].split(" ");
                    if (i &lt; parsed_string.length - 1)
                    parsing = parsing + temp_parse[0] + ", ";
                else {
                parsing = parsing + temp_parse[0];
                }
            }
                parsing = parsing + ")";

                Vector temp_vector = new Vector();
                for (String s : parsed_string) {
                temp_vector.add(s);
            }
                temp_map.put(parsing, temp_vector);
        }
    }
        catch (FileNotFoundException ex)
        {
        System.out.println("File not found: " + file_name);
        String method_name = null;
        return method_name;
    }
</code></pre>

<p>any help on this is aprreciated
I have the last line "return method_name that does not compile
i recieve an error incompatible types, expected java.util.hashmap found java.lang.String
the last line return method_name does not compile</p>
