Merge branch 'stable-3.4' into stable-3.5

* stable-3.4:
  Set version to v3.4.4.2
  Set source/target release based on Gerrit v3.4 specs

Change-Id: Ie57948bc695925590719797a4370c51bb50d17f6
diff --git a/pom.xml b/pom.xml
index 5dfaa93..dec7697 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
     <groupId>com.gerritforge</groupId>
     <artifactId>global-refdb</artifactId>
-    <version>3.4.4.2</version>
+    <version>3.5.1.1</version>
     <packaging>jar</packaging>
 
     <name>global-refdb</name>
@@ -38,7 +38,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <gerrit.version>3.4.4</gerrit.version>
+        <gerrit.version>3.5.1</gerrit.version>
     </properties>
 
     <dependencies>
diff --git a/src/main/java/com/gerritforge/gerrit/globalrefdb/validation/SharedRefDbGitRepositoryManager.java b/src/main/java/com/gerritforge/gerrit/globalrefdb/validation/SharedRefDbGitRepositoryManager.java
index 4f13d6e..9d942ce 100644
--- a/src/main/java/com/gerritforge/gerrit/globalrefdb/validation/SharedRefDbGitRepositoryManager.java
+++ b/src/main/java/com/gerritforge/gerrit/globalrefdb/validation/SharedRefDbGitRepositoryManager.java
@@ -16,6 +16,7 @@
 
 import com.google.common.collect.ImmutableSet;
 import com.google.gerrit.entities.Project;
+import com.google.gerrit.entities.Project.NameKey;
 import com.google.gerrit.server.git.GitRepositoryManager;
 import com.google.gerrit.server.git.LocalDiskRepositoryManager;
 import com.google.gerrit.server.git.RepositoryCaseMismatchException;
@@ -108,6 +109,16 @@
     return gitRepositoryManager.list();
   }
 
+  @Override
+  public Boolean canPerformGC() {
+    return gitRepositoryManager.canPerformGC();
+  }
+
+  @Override
+  public Status getRepositoryStatus(NameKey name) {
+    return gitRepositoryManager.getRepositoryStatus(name);
+  }
+
   private Repository wrap(Project.NameKey projectName, Repository projectRepo) {
     return sharedRefDbRepoFactory.create(projectName.get(), projectRepo, ignoredRefs);
   }