Util XSS escape test

EscapeUtils.java

package your.package.name;
// 2.6
//import org.apache.commons.lang.StringEscapeUtils;
// 3 +
import org.apache.commons.lang3.StringEscapeUtils;

/**
 *
 * @author croucha
 */
public class EscapeUtils {
    
    /**
     * Escapes the characters in a string using HTML entities.
     * For example: 
     * "bread" & "butter"
     * becomes:
     * "bread" & "butter".
     * 
     * @param input, the raw object to escape.
     * @return the raw string with all HTML characters replaced with entity values.
     */
    public static String escape(Object input) {
        if (input == null || "".equals(input)) {
            return "";
        } else {
            return StringEscapeUtils.escapeHtml4(input.toString());
        }
    }
    
    /**
     * @example
     *  import static your.package.name.EscapeUtils.test;
     *  // Returns the bird’s are singing
     *  test();
     */
    public static String test() {
        String result = StringEscapeUtils.escapeHtml4("<script>alert('hackie')</script>");
        result = StringEscapeUtils.escapeHtml4("the bird's are singing");
        //String result = StringEscapeUtils.escapeHtml("<script>alert('hackie')</script>");
        //result = StringEscapeUtils.escapeHtml("the bird's are singing");
        return result;
    }
}