Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/5071#discussion_r153923624
--- Diff: docs/monitoring/metrics.md ---
@@ -94,8 +94,8 @@ Alternatively you can also use your own `Counter`
implementation:
<div data-lang="java" markdown="1">
{% highlight java %}
-public class MyMapper extends RichMapFunction<String, String> {
- private Counter counter;
+RichMapFunction<String, String> {
--- End diff --
looks like you removed more than intended?---
