Clean up various Eclipse warnings

Change-Id: I68a9e8af7b3e7aac6b2dda2971a0f106af5d866c
diff --git a/src/main/java/com/googlesource/gerrit/plugins/replication/PushOne.java b/src/main/java/com/googlesource/gerrit/plugins/replication/PushOne.java
index 53393e8..e9ce3d4 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/replication/PushOne.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/replication/PushOne.java
@@ -617,5 +617,5 @@
     public LockFailureException(URIish uri, String message) {
       super(uri, message);
     }
-  };
+  }
 }
diff --git a/src/main/java/com/googlesource/gerrit/plugins/replication/PushResultProcessing.java b/src/main/java/com/googlesource/gerrit/plugins/replication/PushResultProcessing.java
index 56c5d39..954a175 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/replication/PushResultProcessing.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/replication/PushResultProcessing.java
@@ -41,10 +41,20 @@
 
   abstract void onAllRefsReplicatedToAllNodes(int totalPushTasksCount);
 
+  /**
+   * Write message to standard out.
+   *
+   * @param message message text.
+   */
   void writeStdOut(final String message) {
     // Default doing nothing
   }
 
+  /**
+   * Write message to standard error.
+   *
+   * @param message message text.
+   */
   void writeStdErr(final String message) {
     // Default doing nothing
   }
diff --git a/src/main/java/com/googlesource/gerrit/plugins/replication/ReplicationFileBasedConfig.java b/src/main/java/com/googlesource/gerrit/plugins/replication/ReplicationFileBasedConfig.java
index 57d07b8..574778e 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/replication/ReplicationFileBasedConfig.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/replication/ReplicationFileBasedConfig.java
@@ -184,6 +184,7 @@
     return cfgPath;
   }
 
+  @Override
   public int shutdown() {
     int discarded = 0;
     for (Destination cfg : destinations) {
diff --git a/src/main/java/com/googlesource/gerrit/plugins/replication/ReplicationQueue.java b/src/main/java/com/googlesource/gerrit/plugins/replication/ReplicationQueue.java
index a976d74..003b8a9 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/replication/ReplicationQueue.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/replication/ReplicationQueue.java
@@ -30,7 +30,6 @@
 
 import com.googlesource.gerrit.plugins.replication.PushResultProcessing.GitUpdateProcessing;
 
-import org.eclipse.jgit.errors.ConfigInvalidException;
 import org.eclipse.jgit.errors.TransportException;
 import org.eclipse.jgit.internal.storage.file.FileRepository;
 import org.eclipse.jgit.lib.Constants;
@@ -85,8 +84,7 @@
 
   @Inject
   ReplicationQueue(final WorkQueue wq, final ReplicationConfig rc,
-      final SchemaFactory<ReviewDb> db, final ChangeHooks ch)
-      throws ConfigInvalidException, IOException {
+      final SchemaFactory<ReviewDb> db, final ChangeHooks ch) {
     workQueue = wq;
     database = db;
     changeHooks = ch;
diff --git a/src/main/java/com/googlesource/gerrit/plugins/replication/SecureCredentialsFactory.java b/src/main/java/com/googlesource/gerrit/plugins/replication/SecureCredentialsFactory.java
index 68433f1..32d3905 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/replication/SecureCredentialsFactory.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/replication/SecureCredentialsFactory.java
@@ -51,6 +51,7 @@
     return cfg;
   }
 
+  @Override
   public SecureCredentialsProvider create(String remoteName) {
     String user = config.getString("remote", remoteName, "username");
     String pass = config.getString("remote", remoteName, "password");
diff --git a/src/test/java/com/googlesource/gerrit/plugins/replication/GitUpdateProcessingTest.java b/src/test/java/com/googlesource/gerrit/plugins/replication/GitUpdateProcessingTest.java
index 6b6e616..52362fd 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/replication/GitUpdateProcessingTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/replication/GitUpdateProcessingTest.java
@@ -53,6 +53,7 @@
   private ChangeAccess changeAccessMock;
   private GitUpdateProcessing gitUpdateProcessing;
 
+  @Override
   protected void setUp() throws Exception {
     super.setUp();
     changeHooksMock = createMock(ChangeHooks.class);
@@ -105,7 +106,7 @@
     verify(changeHooksMock);
   }
 
-  public void testOnAllNodesReplicated() throws URISyntaxException {
+  public void testOnAllNodesReplicated() {
     reset(changeHooksMock);
     RefReplicationDoneEvent expectedDoneEvent =
         new RefReplicationDoneEvent("someProject", "refs/heads/master", 5);