Sorry for the no-context stacktrace paste...

Here are the steps

1. git clone https://github.com/nguyenq/tess4j.git
2. cd tess4j
3. mvn clean package (it will create both shaded and normal jar)
4. Install the normal jar into local repository mvn install:install-file -Dfile=target/tess4j-2.0.0-SNAPSHOT.jar -DpomFile=pom.xml

Now git clone https://github.com/brucardoso2/tess4jtest.git mvn clean package (it will create both shaded and normal jar)

Now run the shaded jar: java -jar target/ShadedMaven-1.0-SNAPSHOT-shaded.jar <imagefile>