Github user mjsax commented on the pull request:
https://github.com/apache/flink/pull/880#issuecomment-118047809
I see. But changing the scope to "provided" is the wrong way to go. You
need to exclude unnecessary sub-module dependencies:
```
<dependency>
<groupId>org.apache.flink</groupId>
<artifactId>flink-contrib</artifactId>
<version>${project.version}</version>
<exclusions>
<exclusion>
<groupId>flink-storm-compatiblitly-parent</groupId>
<version>${project.version}</version>
</exclusion>
<exclusion>
<groupId>flink-streaming-contrib</groupId>
<version>${project.version}</version>
</exclusion>
<exclusion>
<groupId>flink-tweet-inputformat</groupId>
<version>${project.version}</version>
</exclusion>
</exclusions>
</dependency>
```
However, I am wondering if the statistics collection code is placed
correctly into flink-contrib. I thought flink-contrib is a "parent" project
only containing sub-modules. For this case, statistic collection would be an
own sub-module and you could just include this sub-module into your
dependencies (this resolves the problem naturally)
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