Update plugin to support Gerrit 2.14.1

Change-Id: I9abb8b02da4f40871f356f492dd4418181536517

pom.xml

diff --git a/pom.xml b/pom.xml
index 39e9f48..8e7626b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -26,14 +26,14 @@
 
   <properties>
     <Gerrit-ApiType>plugin</Gerrit-ApiType>
-    <Gerrit-ApiVersion>2.12.3</Gerrit-ApiVersion>
+    <Gerrit-ApiVersion>2.14.1</Gerrit-ApiVersion>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <jaxb2-basics-runtime.version>0.6.4</jaxb2-basics-runtime.version>
     <jacoco.version>0.7.5.201505241946</jacoco.version>
     <gitdescribe-maven-plugin.version>3.0</gitdescribe-maven-plugin.version>
     <maven-jaxb2-plugin.version>0.7.0</maven-jaxb2-plugin.version>
     <truth.version>0.27</truth.version>
-    <jgit.junit.version>4.1.1.201511131810-r</jgit.junit.version>
+    <jgit.junit.version>4.7.0.201704051617-r</jgit.junit.version>
   </properties>
 
   <build>

src/main/java/com/amd/gerrit/plugins/manifestsubscription/ProjectBranchKey.java

diff --git a/src/main/java/com/amd/gerrit/plugins/manifestsubscription/ProjectBranchKey.java b/src/main/java/com/amd/gerrit/plugins/manifestsubscription/ProjectBranchKey.java
index 899e340..ea8842d 100644
--- a/src/main/java/com/amd/gerrit/plugins/manifestsubscription/ProjectBranchKey.java
+++ b/src/main/java/com/amd/gerrit/plugins/manifestsubscription/ProjectBranchKey.java
@@ -50,7 +50,7 @@
 
   @Override
   public String toString() {
-    return com.google.common.base.Objects.toStringHelper(this)
+    return com.google.common.base.MoreObjects.toStringHelper(this)
         .add("project", project)
         .add("branch", branch)
         .toString();

src/main/java/com/amd/gerrit/plugins/manifestsubscription/Utilities.java

diff --git a/src/main/java/com/amd/gerrit/plugins/manifestsubscription/Utilities.java b/src/main/java/com/amd/gerrit/plugins/manifestsubscription/Utilities.java
index 3ff0ee5..2a85b37 100644
--- a/src/main/java/com/amd/gerrit/plugins/manifestsubscription/Utilities.java
+++ b/src/main/java/com/amd/gerrit/plugins/manifestsubscription/Utilities.java
@@ -30,8 +30,10 @@
 import org.eclipse.jgit.api.errors.GitAPIException;
 import org.eclipse.jgit.errors.ConfigInvalidException;
 import org.eclipse.jgit.lib.ObjectId;
+import org.eclipse.jgit.lib.RefUpdate;
 import org.eclipse.jgit.lib.Repository;
 import org.eclipse.jgit.revwalk.RevCommit;
+import org.eclipse.jgit.transport.ReceiveCommand;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -125,12 +127,9 @@
     // https://gerrit-review.googlesource.com/55540
     if (commit != null) {
       if (!commit.equals(commitId)) {
-        ObjectId parent = ObjectId.zeroId();
-
-        if (commit.getParents().length > 0) {
-          parent = commit.getParent(0).getId();
-        }
-        gitRefUpdated.fire(p, refName, parent, commit.getId() );
+        RefUpdate refUpdate = repo.updateRef(refName);
+        refUpdate.setNewObjectId(commit.getId());
+        gitRefUpdated.fire(p, refUpdate,null);
       }
       return commit.getId();
     } else {

src/main/java/com/amd/gerrit/plugins/manifestsubscription/VersionedManifests.java

diff --git a/src/main/java/com/amd/gerrit/plugins/manifestsubscription/VersionedManifests.java b/src/main/java/com/amd/gerrit/plugins/manifestsubscription/VersionedManifests.java
index 196a945..d8787b5 100644
--- a/src/main/java/com/amd/gerrit/plugins/manifestsubscription/VersionedManifests.java
+++ b/src/main/java/com/amd/gerrit/plugins/manifestsubscription/VersionedManifests.java
@@ -28,11 +28,7 @@
 import org.eclipse.jgit.api.Git;
 import org.eclipse.jgit.api.errors.GitAPIException;
 import org.eclipse.jgit.errors.ConfigInvalidException;
-import org.eclipse.jgit.lib.CommitBuilder;
-import org.eclipse.jgit.lib.ObjectId;
-import org.eclipse.jgit.lib.PersonIdent;
-import org.eclipse.jgit.lib.Ref;
-import org.eclipse.jgit.lib.Repository;
+import org.eclipse.jgit.lib.*;
 import org.eclipse.jgit.revwalk.RevCommit;
 import org.eclipse.jgit.revwalk.RevWalk;
 import org.eclipse.jgit.treewalk.TreeWalk;
@@ -279,7 +275,9 @@
              Git git = new Git(db)) {
           try {
             Ref r = git.branchCreate().setName(branch).setStartPoint(hash).call();
-            gitReferenceUpdated.fire(p, branch, ObjectId.zeroId(), r.getObjectId());
+            RefUpdate refUpdate = db.updateRef(branch);
+            refUpdate.setNewObjectId(r.getObjectId());
+            gitReferenceUpdated.fire(p, refUpdate, null);
           } catch (Exception e) {
 
           }

src/main/resources/Documentation/about.md

diff --git a/src/main/resources/Documentation/about.md b/src/main/resources/Documentation/about.md
index 2060215..f62b4a0 100644
--- a/src/main/resources/Documentation/about.md
+++ b/src/main/resources/Documentation/about.md
@@ -2,7 +2,7 @@
 and generate rev-specific manifests (similar to "repo manifest -o") and store
 them to a separate git repository (configurable.)
 
-> **Warning: this plugin is currently under development and is targeting 2.12.3**
+> **Warning: this plugin is currently under development and is targeting 2.14.1**
 
 The rev-specific manifest of each source manifest is stored in its own branch
 with the following naming convention: