HDFS-10871. DiskBalancerWorkItem should not import jackson relocated by htrace. Contributed by Manoj Govindassamy.

hadoop-hdfs-project/hadoop-hdfs-client/pom.xml

@@ -107,6 +107,10 @@ http://maven.apache.org/xsd/maven-4.0.0.xsd">
       <scope>test</scope>
       <type>test-jar</type>
     </dependency>
+      <dependency>
+          <groupId>com.fasterxml.jackson.core</groupId>
+          <artifactId>jackson-annotations</artifactId>
+      </dependency>
   </dependencies>
 
   <build>

hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/server/datanode/DiskBalancerWorkItem.java

@@ -19,10 +19,10 @@
 
 package org.apache.hadoop.hdfs.server.datanode;
 
+import com.fasterxml.jackson.annotation.JsonInclude;
 import com.google.common.base.Preconditions;
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.classification.InterfaceStability;
-import org.apache.htrace.fasterxml.jackson.annotation.JsonInclude;
 import org.codehaus.jackson.map.ObjectMapper;
 import org.codehaus.jackson.map.ObjectReader;
 

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/diskbalancer/planner/MoveStep.java

@@ -17,13 +17,9 @@
 
 package org.apache.hadoop.hdfs.server.diskbalancer.planner;
 
+import com.fasterxml.jackson.annotation.JsonInclude;
 import org.apache.hadoop.hdfs.server.diskbalancer.datamodel.DiskBalancerVolume;
 import org.apache.hadoop.util.StringUtils;
-import org.apache.htrace.fasterxml.jackson.annotation.JsonInclude;
-
-
-
-
 
 /**
  * Ignore fields with default values. In most cases Throughtput, diskErrors