Complied class missing in jar file in Eclipse + Maven

It was surprise for me when I ran the jar file I got class not found exception , in case if you are facing the problem in scala IDE, then this post might help.

ok, How to check your compiled class is part or not 

$ jar tf <jar file>

this lists items resides in the jar file 

in case your class is missing, then probably you need to plugin in pom.xml

<plugin>

<groupId>net.alchim31.maven</groupId>

<artifactId>scala-maven-plugin</artifactId>

<version>3.1.3</version>

<executions>

<execution>

<goals>

<goal>compile</goal>

<goal>testCompile</goal>

</goals>

</execution>

</executions>

</plugin>

Thats all, build your jar file again 

and run the above command