java - Allocate exception for servlet in jBoss -

i have index.jsp

<form method="post" action="addentry">  </form> 

submits addentry.java (servlet)

mapping in web.xml

  <servlet>     <servlet-name>addentry</servlet-name>     <servlet-class>com.test.addentry</servlet-class>   </servlet>   <servlet-mapping>     <servlet-name>addentry</servlet-name>     <url-pattern>/addentry/*</url-pattern>   </servlet-mapping> 

using jboss 7 when submit form,

servlet com.test.addentry unavailable.

allocate exception servlet.

i have added dependencies servlet jars in pom.xml as

<dependency>         <groupid>javax.servlet</groupid>         <artifactid>servlet-api</artifactid>         <version>2.5</version>         <scope>provided</scope>     </dependency>     <dependency>         <groupid>javax.servlet</groupid>         <artifactid>javax.servlet-api</artifactid>         <version>3.1.0</version>         <scope>provided</scope>    </dependency> 

error logs