Github user alopresto commented on the issue:
https://github.com/apache/nifi/pull/933
I encountered some checkstyle violations building this:
```
[INFO] --- maven-checkstyle-plugin:2.15:check (check-style) @ nifi-web-api
---
[WARNING]
src/main/java/org/apache/nifi/web/api/ApplicationResource.java[919:9]
(whitespace) FileTabCharacter: Line contains a tab character.
[WARNING]
src/main/java/org/apache/nifi/web/api/ControllerResource.java[351] (sizes)
LineLength: Line is longer than 200 characters (found 204).
[WARNING]
src/main/java/org/apache/nifi/web/api/ProcessGroupResource.java[1315] (sizes)
LineLength: Line is longer than 200 characters (found 207).
[WARNING]
src/main/java/org/apache/nifi/web/api/ProcessGroupResource.java[2103] (sizes)
LineLength: Line is longer than 200 characters (found 204).
```
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