在类文件javax / faces / webapp / FacesServlet中的非本机或抽象方法中的Absent Code属性

Question

I am building a PoC for using JSF and am using Tomcat 7.0.59 as my server. My pom.xml looks like :

<repositories>
        <repository>
            <id>Java.Net</id>
            <url>http://download.java.net/maven/2/</url>
        </repository>
    </repositories>
    <dependencies>
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-api</artifactId>
            <version>6.0</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>javax.faces</groupId>
            <artifactId>jsf-api</artifactId>
            <version>2.1</version>
        </dependency>
        <dependency>
            <groupId>com.sun.faces</groupId>
            <artifactId>jsf-impl</artifactId>
            <version>2.1.7</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.0.1</version>
        </dependency>
    </dependencies>

I looked up for the error and found out that it is caused due to the javaee-api but looks like even after adding that particular dependency the issue isn't resolving. There is a different thread but it is on different servers like glassfish, jboss and doesn't seem to be working on my case.

EDIT : After suggestions from Samuel and Tiny, I have reached to this pom.xml :

<dependencies>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>3.8.1</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>javax.faces</groupId>
        <artifactId>jsf-api</artifactId>
        <version>2.1</version>
    </dependency>
    <dependency>
        <groupId>com.sun.faces</groupId>
        <artifactId>jsf-impl</artifactId>
        <version>2.1.7</version>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.0</version>
        <scope>provided</scope>
    </dependency>
</dependencies>

And maven dependency tree looks like :

 com.Sourabh:SourabhTest:war:0.1
[INFO] +- junit:junit:jar:3.8.1:test
[INFO] +- javax.faces:jsf-api:jar:2.1:compile
[INFO] \- com.sun.faces:jsf-impl:jar:2.1.7:compile

Answer 1

Servlet-api must be flagged with <scope>provided</scope> , as the jar in provided by tomcat. If you don't you might encounter class loader issues.

To ensure that you don't have several time the same dependency (through transitive dep.) you can run mvn dependency:tree or go in the dependency hierarchy plugin in eclipse