All logs supposed to be in gc_log file were ending up in main log instead when deploying Gerrit in a web container. gc_log was setup only when running Gerrit as a daemon. Rework GarbageCollectionFile class to be able to get sitePaths as a dependency and create a module to load it in WebAppInitializer. Change-Id: Iee58a1ca36d62060d8f844c00254012db16705e2