POM dependencies not working (Eclipse, Maven, POM)

I have a project in Eclipse (Helios), with Maven pom.xml. My project is a web app that will use Hibernate, MySQL.

But i have endless woes in getting pom.xml right. I am new to maven, and can't believe setting up dependencies is so tough(do others have similar expierience / or am i dumb).

My pom.xml is here:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>MyProj1</groupId> <artifactId>MyProj1</artifactId> <version>0.0.1-SNAPSHOT</version> <repositories> <repository> <id>jboss-public-repository-group</id> <name>JBoss Public Repository Group</name> <url>http://repository.jboss.org/nexus/content/groups/public/</url> <layout>default</layout> <releases> <enabled>true</enabled> <updatePolicy>never</updatePolicy> </releases> <snapshots> <enabled>true</enabled> <updatePolicy>never</updatePolicy> </snapshots> </repository> <repository> <id>Scala Tools</id> <name>Scala Tools</name> <url>http://scala-tools.org/repo-releases/</url> <layout>default</layout> <releases> <enabled>true</enabled> <updatePolicy>never</updatePolicy> </releases> <snapshots> <enabled>true</enabled> <updatePolicy>never</updatePolicy> </snapshots> </repository> </repositories> <dependencies> <dependency> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> <version>1.1.1</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager</artifactId> <version>3.6.4.Final</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> <version>3.6.4.Final</version> </dependency> <!-- <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-annotations</artifactId> <version>3.6.4.Final</version> </dependency> --> <dependency> <groupId>antlr</groupId> <artifactId>antlr</artifactId> <version>2.7.6-brew</version> </dependency> <dependency> <groupId>dom4j</groupId> <artifactId>dom4j</artifactId> <version>1.6.1-jboss</version> </dependency> <dependency> <groupId>asm</groupId> <artifactId>asm</artifactId> <version>1.4.3</version> </dependency> <dependency> <groupId>cglib</groupId> <artifactId>cglib</artifactId> <version>2.1.1</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.16</version> </dependency> </dependencies> </project> 

The error i get is:

Missing artifact commons-logging:commons-logging:jar:1.1.1:compile Missing artifact org.hibernate:hibernate-entitymanager:jar:3.6.4.Final:compile Missing artifact javassist:javassist:jar:3.12.0.GA:compile Missing artifact org.hibernate.javax.persistence:hibernate-jpa-2.0-api:jar:1.0.0.Final:compile Missing artifact org.slf4j:slf4j-api:jar:1.6.1:compile Missing artifact org.hibernate:hibernate-core:jar:3.6.4.Final:compile Missing artifact commons-collections:commons-collections:jar:3.1:compile Missing artifact org.hibernate:hibernate-commons-annotations:jar:3.2.0.Final:compile Missing artifact javax.transaction:jta:jar:1.1:compile Missing artifact antlr:antlr:jar:2.7.6-brew:compile Missing artifact dom4j:dom4j:jar:1.6.1-jboss:compile Missing artifact xml-apis:xml-apis:jar:1.0.b2:compile Missing artifact asm:asm:jar:1.4.3:compile Missing artifact cglib:cglib:jar:2.1.1:compile --- 

All the above errors go away, if i remove the mysql dependency from the pom.xml file. I am totally confused why mysql should have dependency on these.

Isn't Maven supposed to resolve these dependencies automatically? Afterall isn't that the whole idea of using Maven.

Experts please guide me in the right direction.