Github user yew1eb commented on the issue:
https://github.com/apache/flink/pull/4712
thx @zentol, I will add the `maven-dependency-plugin` to flink-parent
pom.xml file.
```
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>3.0.2</version>
<executions>
<execution>
<id>analyze</id>
<goals>
<goal>analyze-only</goal>
</goals>
<configuration>
<failOnWarning>true</failOnWarning>
<!-- ignore annotations for "unused but
declared" warnings -->
<ignoredUnusedDeclaredDependencies>
<!-- ignore inherited from the root
pom.xml -->
<ignoredUnusedDeclaredDependency>org.apache.flink:force-shading</ignoredUnusedDeclaredDependency>
<ignoredUnusedDeclaredDependency>org.slf4j:slf4j-api</ignoredUnusedDeclaredDependency>
<ignoredUnusedDeclaredDependency>com.google.code.findbugs:jsr305</ignoredUnusedDeclaredDependency>
<ignoredUnusedDeclaredDependency>junit:junit:jar</ignoredUnusedDeclaredDependency>
<ignoredUnusedDeclaredDependency>org.mockito:mockito-all</ignoredUnusedDeclaredDependency>
<ignoredUnusedDeclaredDependency>org.powermock:powermock-module-junit4</ignoredUnusedDeclaredDependency>
<ignoredUnusedDeclaredDependency>org.powermock:powermock-api-mockito</ignoredUnusedDeclaredDependency>
<ignoredUnusedDeclaredDependency>org.hamcrest:hamcrest-all</ignoredUnusedDeclaredDependency>
<ignoredUnusedDeclaredDependency>org.slf4j:slf4j-log4j12</ignoredUnusedDeclaredDependency>
<ignoredUnusedDeclaredDependency>log4j:log4j:jar</ignoredUnusedDeclaredDependency>
</ignoredUnusedDeclaredDependencies>
</configuration>
</execution>
</executions>
</plugin>
```
And then one by one for each module to fix (used but undeclared / unused
but declared) dependency issues.
Is this the right way?
---
