Github user fhueske commented on the issue:
https://github.com/apache/flink/pull/5704
Since we are not shading anything we could also use the Maven JAR plugin:
```
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.0.2</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>jar</goal>
</goals>
<configuration>
<classifier>sql-jar</classifier>
</configuration>
</execution>
</executions>
</plugin>
```---
