RBF Module: Fixed any issues where comments and actual throws did not match.

Author: xiaojunxiang2023

hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/store/StateStoreService.java

@@ -138,7 +138,7 @@ public StateStoreService() {
    * Initialize the State Store and the connection to the back-end.
    *
    * @param config Configuration for the State Store.
-   * @throws IOException Cannot create driver for the State Store.
+   * @throws Exception Cannot create driver for the State Store.
    */
   @Override
   protected void serviceInit(Configuration config) throws Exception {
@@ -239,7 +239,6 @@ protected void serviceStop() throws Exception {
    *
    * @param <T> Type of the records stored.
    * @param clazz Class of the record store to track.
-   * @return New record store.
    * @throws ReflectiveOperationException
    */
   private <T extends RecordStore<?>> void addRecordStore(

hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/store/impl/MountTableStoreImpl.java

@@ -70,7 +70,7 @@ public MountTableStoreImpl(StateStoreDriver driver) {
    *
    * @param src mount entry being accessed
    * @param action type of action being performed on the mount entry
-   * @throws AccessControlException if mount table cannot be accessed
+   * @throws IOException if mount table cannot be accessed
    */
   private void checkMountTableEntryPermission(String src, FsAction action)
       throws IOException {
@@ -90,7 +90,7 @@ private void checkMountTableEntryPermission(String src, FsAction action)
    * Check parent path permission recursively. It needs WRITE permission
    * of the nearest parent entry and other EXECUTE permission.
    * @param src mount entry being checked
-   * @throws AccessControlException if mount table cannot be accessed
+   * @throws IOException if mount table cannot be accessed
    */
   private void checkMountTablePermission(final String src) throws IOException {
     String parent = src.substring(0, src.lastIndexOf(Path.SEPARATOR));