I develop the heroku add-on for all Jetbrains IDE's and ran into issues with the latest update, the GitRepositoryManager changed from a class into an interface and is now implemented in GitRepositoryManagerImpl.
By now I could retrieve it with GitRepositoryManager.getInstance(project), now I tried project.getComponent(GitRepositoryManager.class) and project.getComponent(GitRepositoryManagerImpl.class) but both return null. (Btw. they worked while I still had the old libary from IDEA11 (pre 117) in the plugin classpath.)
The dependencies of my plugin are these: