java.lang.NoClassDefFoundError: org/apache/poi/ss/usermodel/Row

Question

I\'ve made a small application that reads from an excel (xls file) and displays the contents to a JTable. Everything is working fine in eclipse, yet when I create the jar file a

Answer 1

Probably you are getting this only when you are running your jar because the dependencies are not available/packaged inside of it.

Try generating a "fat jar" (also known as uber-jar), it will package all your dependencies inside the jar:

    
        
            org.apache.maven.plugins
            maven-shade-plugin
            
                
                    package
                    
                        shade
                    
                
            
            
                YOUR_JAR_FINAL_NAME
            
        
    

Documentation related to the maven-shade-plugin can be found in here

UPDATE: Since you are using a runnable jar file, you can follow this section of the documentation related to Executable Jars