/*
 * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
 * (the "License"). You may not use this work except in compliance with the License, which is
 * available at www.apache.org/licenses/LICENSE-2.0
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied, as more fully set forth in the License.
 *
 * See the NOTICE file distributed with this work for information regarding copyright ownership.
 */

package alluxio.underfs;

import javax.annotation.concurrent.ThreadSafe;

/**
 * A class manages the UFS used by different services.
 */
@ThreadSafe
public final class MasterUfsManager extends AbstractUfsManager {

  /**
   * Constructs the instance of {@link MasterUfsManager}.
   */
  public MasterUfsManager() {}

}

@@ -596,16 +596,21 @@
 A class 
+that 
 manages 
@@ -621,33 +621,25 @@
 UFS 
-used by different
+for master
  serv
-ic
 e
+r
 s.%0A 

Update MasterUfsManager.java