Roll cacheinvalidation to 20150720

third_party/cacheinvalidation/src/java/com/google/ipc/invalidation/ticl/RunState.java

 /*
  * Copyright 2011 Google Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 
 package com.google.ipc.invalidation.ticl;
 
 import com.google.ipc.invalidation.ticl.proto.Client.RunStateP;
 import com.google.ipc.invalidation.util.Marshallable;
 
 /**
  * An abstraction that keeps track of whether the caller is started or stopped and only allows
  * the following transitions NOT_STARTED -> STARTED -> STOPPED. This class is thread-safe.
  *
  */
 public class RunState implements Marshallable<RunStateP> {
   /** Current run state ({@link RunStateP}). */
   private Integer currentState;
-  private Object lock = new Object();
+  private final Object lock = new Object();
 
   /** Constructs a new instance in the {@code NOT_STARTED} state. */
   public RunState() {
     currentState = RunStateP.State.NOT_STARTED;
   }
 
   /** Constructs a new instance with the state given in {@code runState}. */
   RunState(RunStateP runState) {
     this.currentState = runState.getState();
   }
@@ skipping 45 matching lines @@
   @Override
   public RunStateP marshal() {
     return RunStateP.create(currentState);
   }
 
   @Override
   public String toString() {
     return "<RunState: " + currentState + ">";
   }
 }