Add documentation

CHANGELOG.md

@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 - Extension point to add links to the repository cards from plug ins ([#1041](https://github.com/scm-manager/scm-manager/pull/1041))
 - Libc based restart strategy for posix operating systems ([#1079](https://github.com/scm-manager/scm-manager/pull/1079))
+- Simple restart strategy with System.exit ([#1079](https://github.com/scm-manager/scm-manager/pull/1079))
 - Notification if restart is not supported on the underlying platform ([#1079](https://github.com/scm-manager/scm-manager/pull/1079))
 
 ### Changed

scm-core/src/main/java/sonia/scm/lifecycle/Restarter.java

@@ -43,6 +43,7 @@ public interface Restarter {
    *
    * @param cause cause of the restart. This should be the class which calls this method.
    * @param reason reason for the required restart.
+   * @throws RestartNotSupportedException if restarting is not supported by the underlying platform.
    */
   void restart(Class<?> cause, String reason);
 }