revert import order

Author: caroliney14

hbase-server/src/main/java/org/apache/hadoop/hbase/master/RegionStates.java

@@ -17,6 +17,7 @@
  */
 package org.apache.hadoop.hbase.master;
 
+import com.google.common.base.Preconditions;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collection;
@@ -31,9 +32,6 @@
 import java.util.SortedSet;
 import java.util.TreeMap;
 import java.util.TreeSet;
-
-import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.Preconditions;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;

hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestAssignmentManagerMetrics.java

@@ -22,8 +22,8 @@
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hbase.CompatibilityFactory;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
-import org.apache.hadoop.hbase.HColumnDescriptor;
 import org.apache.hadoop.hbase.HConstants;
+import org.apache.hadoop.hbase.HColumnDescriptor;
 import org.apache.hadoop.hbase.HTableDescriptor;
 import org.apache.hadoop.hbase.MiniHBaseCluster;
 import org.apache.hadoop.hbase.TableName;