} else if (schemaClass instanceof String ){
} else if (schemaClass instanceof Vector ){
    protected boolean isValidClass (Object schemaClass, Object foundClassToValidate)       throws java.lang.ClassNotFoundException, SmartFrogException {        if (schemaClass instanceof String ) {           return isValidClass ((String) schemaClass, foundClassToValidate);        } else if (schemaClass instanceof String ){            Vector schemaClassV = (Vector) schemaClass;            for (Enumeration keys = schemaClassV.elements(); keys.hasMoreElements(); ) {               if (isValidClass(keys.nextElement().toString(),foundClassToValidate)){                   return true;               }            }        } else{            throw new SmartFrogException (                      " wrong type in Class schema attribute. Only String or Vector [String,..] are allowed");        }        return false;    }