Erro: Web.xml

Front-end
#1

[code] Ola, pessoal. To quebrando cabeça para tentar resolver os erros no arquivo web.xml abaixo. Aparece o erro abaixo na frente da tag javaee:listener-classprincipal.Sessao</javaee:listener-class> e de todos os javaee:param-name</javaee:param-name>:
O que estou fazendo de errado??

ERRO
cvc-complex-type.2.4.a: Invalid content was found starting with element ‘javaee:listener-class’. Onde of ‘{“http://java.sun.com/xml/ns/j2ee”:description, “http://java.sun.com/xml/ns/j2ee”:display-name, “http://java.sun.com/xml/ns/j2ee”:icon, “http://java.sun.com/xml/ns/j2ee”:listener-class}’ is expected.

WEB.XML

<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns="http://java.sun.com/xml/ns/j2ee"  version="2.4">
xmlns:javaee="http://java.sun.com/xml/ns/javaee" 
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4">
  <listener>
    <javaee:listener-class>principal.Sessao</javaee:listener-class>
  </listener>
  <context-param>
    <javaee:param-name>param_status_aplicacao</javaee:param-name>
    <javaee:param-value>desenvolvimento</javaee:param-value>
  </context-param>
  <context-param>
    <javaee:param-name>param_ambiente</javaee:param-name>
    <javaee:param-value>desenvolvimento</javaee:param-value>
  </context-param>
  <context-param>
    <javaee:param-name>param_url</javaee:param-name>
    <javaee:param-value>jdbc:oracle:thin:@10.0.0.1:1500:administrador</javaee:param-value>
  </context-param>
  <context-param>
    <javaee:param-name>param_internet</javaee:param-name>
    <javaee:param-value>nao</javaee:param-value>
  </context-param>
  <context-param>
    <javaee:param-name>param_driver</javaee:param-name>
    <javaee:param-value>oracle.jdbc.OracleDriver</javaee:param-value>
  </context-param>
  <servlet>
    <servlet-name>Vendas</servlet-name>
    <servlet-class>principal.Controle</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>Vendas</servlet-name>
    <url-pattern>/go</url-pattern>
  </servlet-mapping>
  <session-config>
    <session-timeout>30</session-timeout>
  </session-config>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

Alguem sabe a soluçao???

#2

Onde você viu que a tag tem q ser assim?
javaee:param-nameparam_status_aplicacao</javaee:param-name>

Eu já vi assim:

param_status_aplicacao

#3