Fix problems found by EmptyBlockTag bug pattern

See https://errorprone.info/bugpattern/EmptyBlockTag for details.

Change-Id: I7566d04c2cf960a7c45393c824b76961c76c3b50
diff --git a/src/main/java/com/googlesource/gerrit/plugins/replication/Nfs.java b/src/main/java/com/googlesource/gerrit/plugins/replication/Nfs.java
index a347f3a..09a632d 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/replication/Nfs.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/replication/Nfs.java
@@ -22,7 +22,6 @@
   /**
    * Determine if a throwable or a cause in its causal chain is a Stale NFS File Handle
    *
-   * @param throwable
    * @return a boolean true if the throwable or a cause in its causal chain is a Stale NFS File
    *     Handle
    */
@@ -39,7 +38,6 @@
   /**
    * Determine if an IOException is a Stale NFS File Handle
    *
-   * @param ioe
    * @return a boolean true if the IOException is a Stale NFS FIle Handle
    */
   public static boolean isStaleFileHandle(IOException ioe) {
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 5450dd5..4f33937 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/replication/PushResultProcessing.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/replication/PushResultProcessing.java
@@ -30,15 +30,7 @@
 public interface PushResultProcessing {
   public static final PushResultProcessing NO_OP = new PushResultProcessing() {};
 
-  /**
-   * Invoked when a ref has been replicated to one node.
-   *
-   * @param project
-   * @param ref
-   * @param uri
-   * @param status
-   * @param refStatus
-   */
+  /** Invoked when a ref has been replicated to one node. */
   default void onRefReplicatedToOneNode(
       String project,
       String ref,
@@ -46,20 +38,10 @@
       RefPushResult status,
       RemoteRefUpdate.Status refStatus) {}
 
-  /**
-   * Invoked when a ref has been replicated to all nodes.
-   *
-   * @param project
-   * @param ref
-   * @param nodesCount
-   */
+  /** Invoked when a ref has been replicated to all nodes */
   default void onRefReplicatedToAllNodes(String project, String ref, int nodesCount) {}
 
-  /**
-   * Invoked when all refs have been replicated to all nodes.
-   *
-   * @param totalPushTasksCount
-   */
+  /** Invoked when all refs have been replicated to all nodes */
   default void onAllRefsReplicatedToAllNodes(int totalPushTasksCount) {}
 
   /**