I am trying to run a java project from the command line in linux :
$ java -jar target/my-app.jar -csv test.csv
and got this error
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/cli/ParseException
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2531)
at java.lang.Class.getMethod0(Class.java:2774)
at java.lang.Class.getMethod(Class.java:1663)
at sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:494)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:486)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.cli.ParseException
I'm using maven-3, here my build maven configuration :
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<encoding>${project.build.sourceEncoding}</encoding>
<sourceEncoding>${project.build.sourceEncoding}</sourceEncoding>
<showDeprecation>true</showDeprecation>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.6</version>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<mainClass>${appClass}</mainClass>
<classpathPrefix>lib/</classpathPrefix>
<useUniqueVersions>false</useUniqueVersions>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>
And my commons-cli dependency declaration
<!-- CLI -->
<dependency>
<groupId>commons-cli</groupId>
<artifactId>commons-cli</artifactId>
<version>1.2</version>
</dependency>
If I remove code & dependencies into my class I get no more error.
Thank you !
You are using maven but you are running the application from command line so you need to provide all the required jars to your application:
Approach 1: You can provide into your classpath like below:
$ java -jar -cp "list-of-jars" target/my-app.jar -csv test.csv
If you are on Windows the path will be semi colon separated and on Linux it will colon separated. You can use wild cards also like /*.jar
to include all the jars(java6+).
Approach 2: You can use one fat/uber/one jar to combine all the jars into on jar run it like you want.
Below is using one-jar:
Using Maven: you need to update the plugins section pom.xml:
<plugin>
<groupId>org.dstovall</groupId>
<artifactId>onejar-maven-plugin</artifactId>
<version>1.4.4</version>
<executions>
<execution>
<goals>
<goal>one-jar</goal>
</goals>
</execution>
</executions>
</plugin>
And update pluginRepositories section in pom.xml
<pluginRepository>
<id>onejar-maven-plugin.googlecode.com</id>
<url>http://onejar-maven-plugin.googlecode.com/svn/mavenrepo</url>
</pluginRepository>
When you will execute the mvn package
you will get yourappname-one-jar.jar
and you can run it java -jar yourappname-one-jar.jar
Approach 3: To use the maven shade plugin (as Robert suggested):
Add this into the plugins section of pom.xml:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.4.1</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>org.sonatype.haven.HavenCli</mainClass>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
Upon execution on mvn package
the uber jar will be generated.