Problemas com XML,[Resolvido]

Front-end
#1

Ae galera!
estou com um problema!
esse mapeamento simples está dando um erro: The markup in the document following the root element must be well-formed.
Mas eu estou copiando exatamente como esta na apostila da caelum e não adianta…

alguem consegue enxergar o erro??

obrigado!!

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="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/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>fj21-agenda</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
</web-app>

<servlet>
	<servlet-name>OiMundo</servlet-name>
	<servlet-class>br.com.caelum.servlet.OiMundo</servlet-class>
</servlet>

<servlet-mapping>
	<servlet-name>OiMundo</servlet-name>
	<url-pattern>/oi</url-pattern>
</servlet-mapping>
#2

Tenta assim:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="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/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>fj21-agenda</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>


<servlet>
	<servlet-name>OiMundo</servlet-name>
	<servlet-class>br.com.caelum.servlet.OiMundo</servlet-class>
</servlet>

<servlet-mapping>
	<servlet-name>OiMundo</servlet-name>
	<url-pattern>/oi</url-pattern>
</servlet-mapping>
</web-app>
#3

Opa! q simples! =D

muito obrigado pela ajuda!!

#4