Issues with my Maven project

[henry joe]

Hello guys, 

Please, I was trying to build a simple maven project but ran into some difficulty. I was checking out the instructions from this site-> `http://www.mkyong.com/hibernate/quick-start-maven-hibernate-mysql-example/`

but when I took a look at the structure, I discovered in my project structure, I couldn't find the .project and the .classpath  files. I only found the pom.xml. When I ran the project, I hit an eror:

    Exception in thread "main" java.lang.NoClassDefFoundError: com/henry/directory/App

    Caused by: java.lang.ClassNotFoundException: com.henry.directory.App

    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)

    at java.security.AccessController.doPrivileged(Native Method)

    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

Here is my pom.xml file:

    <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/maven-v4_0_0.xsd">

      <modelVersion>4.0.0</modelVersion>

      <groupId>com.henry.directory</groupId>

      <artifactId>FirstMaven</artifactId>

      <packaging>jar</packaging>

      <version>1.0-SNAPSHOT</version>

      <name>FirstMaven</name>

      <url>http://maven.apache.org</url>

      <dependencies>

        <dependency>

          <groupId>junit</groupId>

          <artifactId>junit</artifactId>

          <version>3.8.1</version>

          <scope>test</scope>

        </dependency>

        

          <!-- MySQL database driver -->

    <dependency>

    <groupId>mysql</groupId>

    <artifactId>mysql-connector-java</artifactId>

    <version>5.1.9</version>

    </dependency>

     

    <!-- Hibernate framework -->

    <dependency>

    <groupId>hibernate</groupId>

    <artifactId>hibernate3</artifactId>

    <version>3.2.3.GA</version>

    </dependency>

     

     

    <!-- Hibernate library dependecy start -->

    <dependency>

    <groupId>dom4j</groupId>

    <artifactId>dom4j</artifactId>

    <version>1.6.1</version>

    </dependency>

     

    <dependency>

    <groupId>commons-logging</groupId>

    <artifactId>commons-logging</artifactId>

    <version>1.1.1</version>

    </dependency>

     

    <dependency>

    <groupId>commons-collections</groupId>

    <artifactId>commons-collections</artifactId>

    <version>3.2.1</version>

    </dependency>

     

    <dependency>

    <groupId>cglib</groupId>

    <artifactId>cglib</artifactId>

    <version>2.2</version>

    </dependency>

    <!-- Hibernate library dependecy end -->

     

    <dependency>

    <groupId>javax.transaction</groupId>

    <artifactId>jta</artifactId>

    <version>1.1</version>

    </dependency>   

      </dependencies>

    </project>

I hope someone could help me out at why the class could not be found. Thanks

 

[Sang Shin]

On 3/9/2013 1:10 PM, henry joe wrote:

Hello guys, 

Please, I was trying to build a simple maven project but ran into some difficulty. I was checking out the instructions from this site-> `http://www.mkyong.com/hibernate/quick-start-maven-hibernate-mysql-example/`

but when I took a look at the structure, I discovered in my project structure, I couldn't find the .project and the .classpath  files. I only found the pom.xml. When I ran the project, I hit an eror:

You don't need .project and .classpath files unless you want them to get built
as Eclipse projects as well.

    Exception in thread "main" java.lang.NoClassDefFoundError: com/henry/directory/App

    Caused by: java.lang.ClassNotFoundException: com.henry.directory.App

It is looking for com/henry/directory/App.class in the classpath but cannot find it.
I strongly recommend you to study the "Maven Basics 1" under "Java development tools" course
along with 8623_tools_build_maven1.zip.

-S

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