CODEWITHSUNDEEP
javamaven
reza ramezani matin
reza ramezani matin

Reputation: 1474

How to add a dependency into a jar file in java

I have an application that is packaged as jar file by maven tools. There is a dependency in the Pom.xml. It is built by clean package command. When I want to run the application by java -cp target/app.jar; org.impl.MainClass the following exception is raised.

Exception in thread "main" java.lang.NoClassDefFoundError: freemarker/template/Configuration at org.baharan.migrationXmlToAnnotation.impl.MainClass.generateTemplate(MainClass.java:80) at org.baharan.migrationXmlToAnnotation.impl.MainClass.processHbm(MainClass.java:149) at org.baharan.migrationXmlToAnnotation.impl.MainClass.getAllHbmFile(MainClass.java:161) at org.baharan.migrationXmlToAnnotation.impl.MainClass.getAllHbmFile(MainClass.java:166) at org.baharan.migrationXmlToAnnotation.impl.MainClass.getAllHbmFile(MainClass.java:166) at org.baharan.migrationXmlToAnnotation.impl.MainClass.start(MainClass.java:172) at org.baharan.migrationXmlToAnnotation.impl.MainClass.main(MainClass.java:183) Caused by: java.lang.ClassNotFoundException: freemarker.template.Configuration at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source)

How is it fixed?

EDIT1:

<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>FreeMarker</groupId>
    <artifactId>FreeMarker</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>
    <name>FreeMarker</name>
    <description>FreeMarker</description>
    <dependencies>
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>2.3.23</version>
        </dependency>
    </dependencies>
    <build>
        <finalName>convertorXmlToAnnotation</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

Upvotes: 2

Views: 243

Answers (1)

Martin Baumgartner
Martin Baumgartner

Reputation: 3652

Libs are not part of a Jar. You can use the maven assembly plugin to create a "fat-jar". 

<plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-assembly-plugin</artifactId>
            <version>3.1.0</version>
            <configuration>
                <descriptorRefs>
                    <descriptorRef>jar-with-dependencies</descriptorRef>
                </descriptorRefs>
            </configuration>
            <executions>
              <execution>
                <id>make-assembly</id>
                <phase>package</phase>
                <goals>
                    <goal>single</goal>
                </goals>
              </execution>
            </executions>
        </plugin>

Description: https://maven.apache.org/plugins/maven-assembly-plugin/descriptor-refs.html

Upvotes: 3

Related Questions