Java APIs

Hello all,

I am trying to comply with some check style errors that i am getting and i cannot seem to figure out what is going on. I have set all non-data members to private, except for call point public static void main(string[] args) and i am still getting this error. "Utility classes should not have a public or default constructor." I cannot figure out what is going on, any help would be greatly welcomed. My code is posted below.

public final class Main
{
    /**
     * Constant Data Member: RECTANGLE
     * Purpose: contains the constant string representing a rectangle.
     * @deprecated RECTANGLE Representitive string value for a rectangle.
     */ 
    public static final String RECTANGLE = "rectangle";
    /**
     * Constant Data Member: TRIANGLE
     * Purpose: contains the constant string representing a triangle.
     * @deprecated TRIANGLE Representitive string value for a triangle. 
     */
    public static final String TRIANGLE = "triangle";
    /**
     * Constant Data Member: REGEX_NUMBER_TEST
     * Purpose: contains the constant for numerical test within regex method.
     * @deprecated REGEX_NUMBER_TEST regex string for digit comparison. 
     */
    public static final String REGEX_NUMBER_TEST = "^[0-9]+$";
    /**
     * Constant Data Member: MAX_ARGUMENTS_RECTANGLE
     * Purpose: contains the constant for the maximum number of allowed 
     *          arguments coming in from the command line.
     * @deprecated MAX_ARGUMENTS_RECTANGLE constant for rectangle argument.
     *                                      limit.
     */
    public static final int MAX_ARGUMENTS_RECTANGLE = 3;
    /**
     * Constant Data Member: MAX_ARGUMENTS_TRIANGLE
     * Purpose: contains the constant for the maximum number of allowed 
     *          arguments coming in from the command line, in the case of a
     *          triangle object. 
     * @deprecated MAX_ARGUMENTS_TRIANGLE constant for triangle argument limit.
     */
    public static final int MAX_ARGUMENTS_TRIANGLE = 2;
    /**
     * Method: main
     * Purpose: Is the execution point for the program. It is in charge of
     *          initiating validation and the creation and application of
     *          objects and their related draw methods.
     * @param args input from the user.
     */
    public static void main(final String[] args)
    {
        String objectType = null;
        int width = 0;
        int height = 0;
        
        if(args.length > MAX_ARGUMENTS_RECTANGLE || args.length < 
            MAX_ARGUMENTS_TRIANGLE || (args.length == MAX_ARGUMENTS_TRIANGLE &&
            !isTriangle(args[0])))
        {
             // fails
            outputErrorMessage();
        } 
        else
        {
            if ((isTriangle(args[0]) && args.length > MAX_ARGUMENTS_TRIANGLE) ||
                (!isTriangle(args[0]) && args.length > MAX_ARGUMENTS_RECTANGLE))
            {
                // fails becuase triangle should only have one argument
                outputErrorMessage();
            } 
            else
            {
                // passes and proceed
                objectType = args[0];
                if (validNumber(args[1]))
                {
                    width = Integer.parseInt(args[1]);
                    if(width == 0)
                    {
                        outputErrorMessage();
                    } 
                    else
                    {
....