-- Remove raw type usage, add type check parameter.

-- Remove unused variable and unused imports.

webgoat-container/src/main/java/org/owasp/webgoat/session/ParameterParser.java

@@ -467,7 +467,7 @@ public class ParameterParser {
      *
      * @return The parameterNames value
      */
-    public Enumeration getParameterNames() {
+    public Enumeration<String> getParameterNames() {
         if (request == null) {
             return (null);
         }