Official announcement of project transfer - https://groups.google.com/d/topic/sonarqube/HXXxOWS_sOs/discussion
This plugin provides coding rules from Checkstyle.
Compatibility matrix from Sonar team: https://docs.sonarqube.org/latest/instance-administration/plugin-version-matrix/
Compatibility matrix from checkstyle team:
| Checkstyle Plugin | Sonar min | Sonar max | Checkstyle | Jdk |
|---|---|---|---|---|
| 10.0 | 8.9 | 8.9+ | 10.0 | 11 |
| 9.3 | 8.9 | 8.9+ | 9.3 | 1.8 |
| 9.2.1 | 8.9 | 8.9+ | 9.2.1 | 1.8 |
| 9.2 | 8.9 | 8.9+ | 9.2 | 1.8 |
| 9.1 | 8.9 | 8.9+ | 9.1 | 1.8 |
| 9.0.1 | 8.9 | 8.9+ | 9.0.1 | 1.8 |
| 8.45.1 | 7.9 | 7.9+ | 8.45.1 | 1.8 |
| 8.42 | 7.9 | 7.9+ | 8.42 | 1.8 |
| 8.41.1 | 7.9 | 7.9+ | 8.41.1 | 1.8 |
| 8.40 | 7.9 | 7.9+ | 8.40 | 1.8 |
| 8.39 | 7.9 | 7.9+ | 8.39 | 1.8 |
| 8.38 | 7.9 | 7.9+ | 8.38 | 1.8 |
| 8.37 | 7.9 | 7.9+ | 8.37 | 1.8 |
| 8.35 | 7.9 | 7.9+ | 8.35 | 1.8 |
| 4.34 | 7.9 | 7.9+ | 8.34 | 1.8 |
| 4.33 | 7.9 | 7.9+ | 8.33 | 1.8 |
| 4.32 | 7.9 | 7.9+ | 8.32 | 1.8 |
| 4.31 | 7.9 | 7.9+ | 8.31 | 1.8 |
| 4.30 | 7.9 | 7.9+ | 8.30 | 1.8 |
| 4.29 | 7.9 | 7.9+ | 8.29 | 1.8 |
| 4.28 | 7.9 | 7.9+ | 8.28 | 11 |
| 4.27 | 6.7 | 7.7+ | 8.27 | 1.8 |
| 4.26 | 6.7 | 7.7+ | 8.26 | 1.8 |
| 4.25 | 6.7 | 7.7+ | 8.25 | 1.8 |
| 4.24 | 6.7 | 7.7+ | 8.24 | 1.8 |
| 4.23 | 6.7 | 7.7+ | 8.23 | 1.8 |
| 4.22 | 6.7 | 7.7+ | 8.22 | 1.8 |
| 4.21 | 6.7 | 7.7+ | 8.21 | 1.8 |
| 4.20 | 6.7 | 7.7+ | 8.20 | 1.8 |
| 4.19 | 6.7 | 7.7+ | 8.19 | 1.8 |
| 4.18 | 6.7 | 7.7+ | 8.18 | 1.8 |
| 4.17 | 6.7 | 7.5 | 8.17 | 1.8 |
| 4.16 | 5.6.6 | 7.2 | 8.16 | 1.8 |
| 4.15 | 5.6.6 | 7.2 | 8.15 | 1.8 |
| 4.14 | 5.6.6 | 7.2 | 8.14 | 1.8 |
| 4.13 | 5.6.6 | 7.2 | 8.13 | 1.8 |
| 4.12 | 5.6.6 | 7.2 | 8.12 | 1.8 |
| 4.11 | 5.6.6 | 7.2 | 8.11 | 1.8 |
| 4.10.1 | 5.6.6 | 7.2 | 8.10.1 | 1.8 |
| 4.10 | 5.6.6 | 7.2 | 8.10 | 1.8 |
| 4.9 | 5.6.6 | 7.2 | 8.9 | 1.8 |
| 4.8 | 5.6.6 | 7.2 | 8.8 | 1.8 |
| 4.7 | 5.6.6 | 7.2 | 8.7 | 1.8 |
| 4.6 | 5.6.6 | 7.2 | 8.6 | 1.8 |
| 4.5 | 5.6.6 | 7.2 | 8.5 | 1.8 |
| 4.4 | 5.6.6 | 7.2 | 8.4 | 1.8 |
| 4.3 | 5.6.6 | 7.2 | 8.3 | 1.8 |
| 4.2 | 5.6.6 | 7.2 | 8.2 | 1.8 |
| 4.1 | 5.6.6 | 7.2 | 8.1 | 1.8 |
| 4.0 | 5.6.6 | 7.2 | 8.0 | 1.8 |
| 3.8 | 5.6.6 | 7.2 | 7.8.2 | 1.8 |
| 3.7 | 5.6.6 | 7.2 | 7.7 | 1.8 |
| 3.6.1 | 5.6.6 | 7.2 | 7.6.1 | 1.8 |
| 3.6 | 5.6.4 | 7.2 | 7.6 | 1.8 |
| 3.5.1 | 5.6.4 | 7.2 | 7.5.1 | 1.8 |
| 3.5 | 5.6.4 | 7.2 | 7.5 | 1.8 |
| 3.4 | 5.6.4 | 7.2 | 7.4 | 1.8 |
| 3.3 | 5.6.4 | 7.2 | 7.3 | 1.8 |
| 3.2 | 5.6.4 | 7.2 | 7.2 | 1.8 |
| 3.1.2 | 5.6.4 | 7.2 | 7.1.2 | 1.8 |
| 3.1.1 | 5.6.4 | 7.2 | 7.1.1 | 1.8 |
| 3.1 | 5.6.4 | -- | 7.1 | 1.8 |
| 2.4 | 4.5.2 | -- | 6.12.1 | 1.7 |
| 2.3 | 4.5.1 | -- | 6.4.1 | 1.7 |
| 2.2 | 4.5.1 | -- | 6.1 | 1.6 |
| 2.1.1 | 3.6 | -- | 5.6 | 1.6 |
| 2 | 3.6 | -- | 5.6 | 1.6 |
Jdk version depends on checkstyle's and sonar's jdk version:
checkstyle:6.0 use jdk6, checkstyle:6.2 use jdk7, checkstyle:7.0 use jdk8.
sonar:3.6 used jdk6, sonar:4.5 use jdk6, sonar:5.6-7.8 use jdk8, sonar:7.9-latest use jdk11.
Install it from Sonar Update Center:

or do it manually: Dowload latest or required version from https://github.com/checkstyle/sonar-checkstyle/releases . Place jar file to your sonar instance to "[YOUR_SONAR_PATH]/extensions/plugins", restart Sonar.
In the quality profile, activate some rules from Checkstyle and run an analysis on your project.
