Fix javadoc warnings

Author: gmfeinberg

driver/src/main/java/oracle/nosql/driver/ops/Request.java

@@ -84,6 +84,7 @@ public int getTimeoutInternal() {
     /**
      * @hidden
      * this is public to allow access from Client during refresh
+     * @param timeoutMs timeout in milliseconds
      */
     public void setTimeoutInternal(int timeoutMs) {
         if (timeoutMs <= 0) {
@@ -454,6 +455,7 @@ public boolean getIsRefresh() {
     /**
      * @hidden
      * Copy internal fields to another Request object.
+     * @param other the request to copy
      */
     public void copyTo(Request other) {
         other.setTimeoutInternal(this.timeoutMs);

driver/src/main/java/oracle/nosql/driver/ops/RetryStats.java

@@ -125,6 +125,7 @@ public Map<Class<? extends Throwable>, Integer> getExceptionMap() {
      * @hidden
      * Internal use only.
      * Adds stats to the current object.
+     * @param rs the stats to add
      */
     public void addStats(RetryStats rs) {
         if (rs == null) {