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Answer 1

+1 A:

There might be the conflicts in version. compare it with this

org.life.java 2010-08-09 12:51:14

That seems to have fixed it alright (Still not 100% sure which dependency is at issue, but I'll post my revised pom.xml once I've reduced it to it's bare essentials.)ThanksBarry

barryred 2010-08-09 13:19:13

you are welcomed

org.life.java 2010-08-09 13:22:12

you can always upvote to say thanks :)

org.life.java 2010-08-09 13:36:35

This tutorial is making things overcomplicated, just declare a dependency on `hibernate-entitymanager`.

Pascal Thivent 2010-08-09 13:58:54

How Pascal, will please you elaborate,I will take care next time,but let me know what is wrong here?

org.life.java 2010-08-09 14:00:19

There is no need to declare all hibernate dependencies, this tutorial is misusing Maven (and from what I've seen so far, I can't say that I consider mkyong.com as a trustable reference).

Pascal Thivent 2010-08-09 14:06:04

ok Thanks Pascal for your information, i will take care next time

org.life.java 2010-08-09 14:11:48

Answer 2

+1 A:

You're indeed using incompatible versions of Hibernate artifacts as this can be verified using the official Hibernate Compatibility Matrix. Don't rely on some random tutorial found around the net for that.

But since you're using Maven, you actually don't need to declare all Hibernate artifacts, just leverage the transitive dependencies. So just declare a dependency in the hibernate-entitymanager (especially if you're not sure of what you're doing):

<dependency>
  <groupId>org.hibernate</groupId>
  <artifactId>hibernate-entitymanager</artifactId>
  <version>3.4.0.GA</version><!-- for JPA 1.0 -->
</dependency>

And remove these hibernate, hibernate-core, hibernate-annotations, persistence-api, slf4j dependencies.

And if you want to change the version of the sfl4j-api artifact that you get transitively, you should do that in the dependency management section:

<dependencyManagement>
  <dependencies>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.6.1</version>
    </dependency>
  </dependencies>
</dependencyManagement>

Actually (and I'm sorry to say so) your whole pom is a big mess, try to spend some time cleaning it. Use mvn dependency:tree (or some visual fronted offered by your IDE) to do so.

And let me insist, don't rely on some random (and wrong) tutorial found around the net, leverage Maven transitive dependency mechanism.

PS: As of Hibernate 3.5, the various projects (Hibernate Annotation, Hibernate EntityManager) have been merged back to Hibernate Core and their versions are synchronized which simplifies a lot version management, even for Maven users.

Pascal Thivent 2010-08-09 13:58:32

Thanks Pascal :)

org.life.java 2010-08-09 14:27:18

Yes, thank you.I've posted my revised (working) pom as an answer below.

barryred 2010-08-09 14:29:41

Answer 3

+1 A:

This is now working, and my pom.xml looks like this:

<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>com.company.hibernate.tutorial</groupId>
    <artifactId>hibernate-tutorial</artifactId>
    <version>1.0.0-SNAPSHOT</version>
    <name>Hibernate Tutorial</name>

     <repositories>
        <repository>
          <id>JBoss repository</id>
          <url>http://repository.jboss.com/maven2/&lt;/url>
        </repository>
      </repositories>

    <dependencies>

        <!-- Hibernate framework -->
        <dependency>
          <groupId>org.hibernate</groupId>
          <artifactId>hibernate-entitymanager</artifactId>
          <version>3.4.0.GA</version><!-- for JPA 1.0 -->

        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.13</version>
            <type>jar</type>
        </dependency>

        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.16</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-jdk14</artifactId>
            <version>1.6.1</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
    </dependencies>

    <build>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <configuration>
                        <source>1.6</source>
                        <target>1.6</target>
                    </configuration>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-api</artifactId>
                <version>1.6.1</version>
                <type>jar</type>
                <scope>compile</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

</project>

barryred 2010-08-09 14:29:04

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