HDFS-10970. Update jackson from 1.9.13 to 2.x in hadoop-hdfs.

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

@@ -111,6 +111,10 @@ http://maven.apache.org/xsd/maven-4.0.0.xsd">
           <groupId>com.fasterxml.jackson.core</groupId>
           <artifactId>jackson-annotations</artifactId>
       </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-databind</artifactId>
+    </dependency>
   </dependencies>
 
   <build>

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

@@ -20,11 +20,11 @@
 package org.apache.hadoop.hdfs.server.datanode;
 
 import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectReader;
 import com.google.common.base.Preconditions;
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.classification.InterfaceStability;
-import org.codehaus.jackson.map.ObjectMapper;
-import org.codehaus.jackson.map.ObjectReader;
 
 import java.io.IOException;
 

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

@@ -20,19 +20,19 @@
 package org.apache.hadoop.hdfs.server.datanode;
 
 
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectReader;
+import com.fasterxml.jackson.databind.SerializationFeature;
 import com.google.common.base.Preconditions;
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.classification.InterfaceStability;
-import org.codehaus.jackson.map.ObjectMapper;
-import org.codehaus.jackson.map.ObjectReader;
-import org.codehaus.jackson.map.SerializationConfig;
-
-import static org.codehaus.jackson.map.type.TypeFactory.defaultInstance;
 
 import java.io.IOException;
 import java.util.List;
 import java.util.LinkedList;
 
+import static com.fasterxml.jackson.databind.type.TypeFactory.defaultInstance;
+
 /**
  * Helper class that reports how much work has has been done by the node.
  */
@@ -41,8 +41,7 @@ import java.util.LinkedList;
 public class DiskBalancerWorkStatus {
   private static final ObjectMapper MAPPER = new ObjectMapper();
   private static final ObjectMapper MAPPER_WITH_INDENT_OUTPUT =
-      new ObjectMapper().enable(
-          SerializationConfig.Feature.INDENT_OUTPUT);
+      new ObjectMapper().enable(SerializationFeature.INDENT_OUTPUT);
   private static final ObjectReader READER_WORKSTATUS =
       new ObjectMapper().reader(DiskBalancerWorkStatus.class);
   private static final ObjectReader READER_WORKENTRY = new ObjectMapper()

hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/util/CombinedHostsFileReader.java

@@ -18,6 +18,9 @@
 
 package org.apache.hadoop.hdfs.util;
 
+import com.fasterxml.jackson.core.JsonFactory;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectReader;
 import java.io.FileInputStream;
 import java.io.InputStreamReader;
 import java.io.IOException;
@@ -28,9 +31,6 @@ import java.util.HashSet;
 
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.classification.InterfaceStability;
-import org.codehaus.jackson.JsonFactory;
-import org.codehaus.jackson.map.ObjectMapper;
-import org.codehaus.jackson.map.ObjectReader;
 import org.apache.hadoop.hdfs.protocol.DatanodeAdminProperties;
 
 /**
@@ -66,7 +66,7 @@ public final class CombinedHostsFileReader {
     try (Reader input =
          new InputStreamReader(new FileInputStream(hostsFile), "UTF-8")) {
       Iterator<DatanodeAdminProperties> iterator =
-          READER.readValues(JSON_FACTORY.createJsonParser(input));
+          READER.readValues(JSON_FACTORY.createParser(input));
       while (iterator.hasNext()) {
         DatanodeAdminProperties properties = iterator.next();
         allDNs.add(properties);

hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/util/CombinedHostsFileWriter.java

@@ -25,9 +25,9 @@ import java.io.Writer;
 
 import java.util.Set;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.classification.InterfaceStability;
-import org.codehaus.jackson.map.ObjectMapper;
 
 import org.apache.hadoop.hdfs.protocol.DatanodeAdminProperties;
 

hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/web/JsonUtilClient.java

@@ -17,6 +17,8 @@
  */
 package org.apache.hadoop.hdfs.web;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectReader;
 import com.google.common.base.Preconditions;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
@@ -48,8 +50,6 @@ import org.apache.hadoop.security.token.Token;
 import org.apache.hadoop.security.token.TokenIdentifier;
 import org.apache.hadoop.util.DataChecksum;
 import org.apache.hadoop.util.StringUtils;
-import org.codehaus.jackson.map.ObjectMapper;
-import org.codehaus.jackson.map.ObjectReader;
 
 import java.io.ByteArrayInputStream;
 import java.io.DataInputStream;

hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/web/WebHdfsFileSystem.java

@@ -49,6 +49,8 @@ import java.util.StringTokenizer;
 import javax.ws.rs.core.HttpHeaders;
 import javax.ws.rs.core.MediaType;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectReader;
 import org.apache.commons.io.IOUtils;
 import org.apache.commons.io.input.BoundedInputStream;
 import org.apache.hadoop.conf.Configuration;
@@ -103,8 +105,6 @@ import org.apache.hadoop.security.token.TokenSelector;
 import org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSelector;
 import org.apache.hadoop.util.Progressable;
 import org.apache.hadoop.util.StringUtils;
-import org.codehaus.jackson.map.ObjectMapper;
-import org.codehaus.jackson.map.ObjectReader;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/web/oauth2/ConfRefreshTokenBasedAccessTokenProvider.java

@@ -18,6 +18,8 @@
  */
 package org.apache.hadoop.hdfs.web.oauth2;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectReader;
 import com.squareup.okhttp.OkHttpClient;
 import com.squareup.okhttp.Request;
 import com.squareup.okhttp.RequestBody;
@@ -28,8 +30,6 @@ import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hdfs.web.URLConnectionFactory;
 import org.apache.hadoop.util.Timer;
 import org.apache.http.HttpStatus;
-import org.codehaus.jackson.map.ObjectMapper;
-import org.codehaus.jackson.map.ObjectReader;
 
 import java.io.IOException;
 import java.util.Map;

hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/web/oauth2/CredentialBasedAccessTokenProvider.java

@@ -18,6 +18,8 @@
  */
 package org.apache.hadoop.hdfs.web.oauth2;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectReader;
 import com.squareup.okhttp.OkHttpClient;
 import com.squareup.okhttp.Request;
 import com.squareup.okhttp.RequestBody;
@@ -28,8 +30,6 @@ import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hdfs.web.URLConnectionFactory;
 import org.apache.hadoop.util.Timer;
 import org.apache.http.HttpStatus;
-import org.codehaus.jackson.map.ObjectMapper;
-import org.codehaus.jackson.map.ObjectReader;
 
 import java.io.IOException;
 import java.util.Map;

hadoop-hdfs-project/hadoop-hdfs-client/src/test/java/org/apache/hadoop/hdfs/web/TestWebHDFSOAuth2.java

@@ -18,6 +18,7 @@
  */
 package org.apache.hadoop.hdfs.web;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.FileSystem;
@@ -27,7 +28,6 @@ import org.apache.hadoop.hdfs.web.oauth2.ConfCredentialBasedAccessTokenProvider;
 import org.apache.hadoop.hdfs.web.oauth2.CredentialBasedAccessTokenProvider;
 import org.apache.hadoop.hdfs.web.oauth2.OAuth2ConnectionConfigurator;
 import org.apache.http.HttpStatus;
-import org.codehaus.jackson.map.ObjectMapper;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;

hadoop-hdfs-project/hadoop-hdfs-client/src/test/java/org/apache/hadoop/hdfs/web/oauth2/TestClientCredentialTimeBasedTokenRefresher.java

@@ -18,11 +18,11 @@
  */
 package org.apache.hadoop.hdfs.web.oauth2;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.net.ServerSocketUtil;
 import org.apache.hadoop.util.Timer;
 import org.apache.http.HttpStatus;
-import org.codehaus.jackson.map.ObjectMapper;
 import org.junit.Test;
 import org.mockserver.client.server.MockServerClient;
 import org.mockserver.integration.ClientAndServer;

hadoop-hdfs-project/hadoop-hdfs-client/src/test/java/org/apache/hadoop/hdfs/web/oauth2/TestRefreshTokenTimeBasedTokenRefresher.java

@@ -18,10 +18,10 @@
  */
 package org.apache.hadoop.hdfs.web.oauth2;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.util.Timer;
 import org.apache.http.HttpStatus;
-import org.codehaus.jackson.map.ObjectMapper;
 import org.junit.Test;
 import org.mockserver.client.server.MockServerClient;
 import org.mockserver.integration.ClientAndServer;

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

@@ -164,16 +164,6 @@ http://maven.apache.org/xsd/maven-4.0.0.xsd">
       <artifactId>slf4j-log4j12</artifactId>
       <scope>provided</scope>
     </dependency>
-    <dependency>
-      <groupId>org.codehaus.jackson</groupId>
-      <artifactId>jackson-core-asl</artifactId>
-      <scope>compile</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.codehaus.jackson</groupId>
-      <artifactId>jackson-mapper-asl</artifactId>
-      <scope>compile</scope>
-    </dependency>
     <dependency>
       <groupId>xmlenc</groupId>
       <artifactId>xmlenc</artifactId>

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

@@ -164,16 +164,6 @@ http://maven.apache.org/xsd/maven-4.0.0.xsd">
       <artifactId>slf4j-log4j12</artifactId>
       <scope>provided</scope>
     </dependency>
-    <dependency>
-      <groupId>org.codehaus.jackson</groupId>
-      <artifactId>jackson-core-asl</artifactId>
-      <scope>compile</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.codehaus.jackson</groupId>
-      <artifactId>jackson-mapper-asl</artifactId>
-      <scope>compile</scope>
-    </dependency>
     <dependency>
       <groupId>xmlenc</groupId>
       <artifactId>xmlenc</artifactId>
@@ -227,6 +217,10 @@ http://maven.apache.org/xsd/maven-4.0.0.xsd">
       <artifactId>bcprov-jdk16</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-databind</artifactId>
+    </dependency>
   </dependencies>
 
   <build>

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsVolumeImpl.java

@@ -77,13 +77,13 @@ import org.apache.hadoop.util.DiskChecker.DiskErrorException;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.util.Time;
 import org.apache.hadoop.util.Timer;
-import org.codehaus.jackson.annotate.JsonProperty;
-import org.codehaus.jackson.map.ObjectMapper;
-import org.codehaus.jackson.map.ObjectReader;
-import org.codehaus.jackson.map.ObjectWriter;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectReader;
+import com.fasterxml.jackson.databind.ObjectWriter;
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Joiner;
 import com.google.common.base.Preconditions;

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/diskbalancer/command/Command.java

@@ -18,6 +18,8 @@
 
 package org.apache.hadoop.hdfs.server.diskbalancer.command;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectReader;
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Preconditions;
 import com.google.common.collect.Lists;
@@ -47,8 +49,6 @@ import org.apache.hadoop.hdfs.server.diskbalancer.datamodel.DiskBalancerVolumeSe
 import org.apache.hadoop.hdfs.tools.DiskBalancerCLI;
 import org.apache.hadoop.net.NetUtils;
 import org.apache.hadoop.security.UserGroupInformation;
-import org.codehaus.jackson.map.ObjectMapper;
-import org.codehaus.jackson.map.ObjectReader;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/diskbalancer/connectors/JsonNodeConnector.java

@@ -17,6 +17,8 @@
 
 package org.apache.hadoop.hdfs.server.diskbalancer.connectors;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectReader;
 import com.google.common.base.Preconditions;
 
 import org.slf4j.Logger;
@@ -24,8 +26,6 @@ import org.slf4j.LoggerFactory;
 import org.apache.hadoop.hdfs.server.diskbalancer.datamodel.DiskBalancerCluster;
 import org.apache.hadoop.hdfs.server.diskbalancer.datamodel
     .DiskBalancerDataNode;
-import org.codehaus.jackson.map.ObjectMapper;
-import org.codehaus.jackson.map.ObjectReader;
 
 import java.io.File;
 import java.net.URL;

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/diskbalancer/datamodel/DiskBalancerCluster.java

@@ -17,6 +17,10 @@
 
 package org.apache.hadoop.hdfs.server.diskbalancer.datamodel;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectReader;
 import com.google.common.base.Preconditions;
 
 import org.apache.commons.io.FileUtils;
@@ -27,10 +31,6 @@ import org.apache.hadoop.hdfs.server.diskbalancer.planner.NodePlan;
 import org.apache.hadoop.hdfs.server.diskbalancer.planner.Planner;
 import org.apache.hadoop.hdfs.server.diskbalancer.planner.PlannerFactory;
 import org.apache.hadoop.hdfs.web.JsonUtil;
-import org.codehaus.jackson.annotate.JsonIgnore;
-import org.codehaus.jackson.annotate.JsonIgnoreProperties;
-import org.codehaus.jackson.map.ObjectMapper;
-import org.codehaus.jackson.map.ObjectReader;
 
 import java.io.File;
 import java.io.IOException;

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/diskbalancer/datamodel/DiskBalancerVolume.java

@@ -17,13 +17,13 @@
 
 package org.apache.hadoop.hdfs.server.diskbalancer.datamodel;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectReader;
 import com.google.common.base.Preconditions;
 
 import org.apache.hadoop.hdfs.web.JsonUtil;
-import org.codehaus.jackson.annotate.JsonIgnore;
-import org.codehaus.jackson.annotate.JsonIgnoreProperties;
-import org.codehaus.jackson.map.ObjectMapper;
-import org.codehaus.jackson.map.ObjectReader;
 
 import java.io.IOException;
 

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/diskbalancer/datamodel/DiskBalancerVolumeSet.java

@@ -18,12 +18,12 @@
 
 package org.apache.hadoop.hdfs.server.diskbalancer.datamodel;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
 import com.google.common.base.Preconditions;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.codehaus.jackson.annotate.JsonIgnore;
-import org.codehaus.jackson.annotate.JsonProperty;
-import org.codehaus.jackson.annotate.JsonIgnoreProperties;
 
 import java.io.Serializable;
 import java.util.ArrayList;

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

@@ -17,10 +17,10 @@
 
 package org.apache.hadoop.hdfs.server.diskbalancer.planner;
 
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.databind.JavaType;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import com.google.common.base.Preconditions;
-import org.codehaus.jackson.annotate.JsonTypeInfo;
-import org.codehaus.jackson.map.ObjectMapper;
-import org.codehaus.jackson.type.JavaType;
 
 import java.io.IOException;
 import java.util.LinkedList;

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/StartupProgressServlet.java

@@ -21,14 +21,14 @@ import java.io.IOException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
+import com.fasterxml.jackson.core.JsonFactory;
+import com.fasterxml.jackson.core.JsonGenerator;
 import org.apache.hadoop.hdfs.server.namenode.startupprogress.Phase;
 import org.apache.hadoop.hdfs.server.namenode.startupprogress.StartupProgress;
 import org.apache.hadoop.hdfs.server.namenode.startupprogress.StartupProgressView;
 import org.apache.hadoop.hdfs.server.namenode.startupprogress.Step;
 import org.apache.hadoop.hdfs.server.namenode.startupprogress.StepType;
 import org.apache.hadoop.io.IOUtils;
-import org.codehaus.jackson.JsonFactory;
-import org.codehaus.jackson.JsonGenerator;
 
 import org.apache.hadoop.classification.InterfaceAudience;
 
@@ -61,7 +61,7 @@ public class StartupProgressServlet extends DfsServlet {
     StartupProgress prog = NameNodeHttpServer.getStartupProgressFromContext(
       getServletContext());
     StartupProgressView view = prog.createView();
-    JsonGenerator json = new JsonFactory().createJsonGenerator(resp.getWriter());
+    JsonGenerator json = new JsonFactory().createGenerator(resp.getWriter());
     try {
       json.writeStartObject();
       json.writeNumberField(ELAPSED_TIME, view.getElapsedTime());

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/JsonUtil.java

@@ -27,8 +27,8 @@ import org.apache.hadoop.ipc.RemoteException;
 import org.apache.hadoop.security.token.Token;
 import org.apache.hadoop.security.token.TokenIdentifier;
 import org.apache.hadoop.util.StringUtils;
-import org.codehaus.jackson.map.ObjectMapper;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
 import com.google.common.collect.Lists;
 
 import java.io.IOException;

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDataNodeMXBean.java

@@ -26,6 +26,8 @@ import java.util.Map;
 import javax.management.MBeanServer;
 import javax.management.ObjectName;
 
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import com.google.common.base.Supplier;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
@@ -36,8 +38,6 @@ import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.hdfs.DFSTestUtil;
 import org.apache.hadoop.hdfs.MiniDFSCluster;
 import org.apache.hadoop.test.GenericTestUtils;
-import org.codehaus.jackson.map.ObjectMapper;
-import org.codehaus.jackson.type.TypeReference;
 import org.junit.Assert;
 import org.junit.Test;
 import org.eclipse.jetty.util.ajax.JSON;

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/diskbalancer/TestDiskBalancerRPC.java

@@ -17,6 +17,7 @@
 
 package org.apache.hadoop.hdfs.server.diskbalancer;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
 import org.apache.commons.codec.digest.DigestUtils;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileSystem;
@@ -36,7 +37,6 @@ import org.apache.hadoop.hdfs.server.diskbalancer.datamodel.DiskBalancerCluster;
 import org.apache.hadoop.hdfs.server.diskbalancer.datamodel.DiskBalancerDataNode;
 import org.apache.hadoop.hdfs.server.diskbalancer.planner.GreedyPlanner;
 import org.apache.hadoop.hdfs.server.diskbalancer.planner.NodePlan;
-import org.codehaus.jackson.map.ObjectMapper;
 import org.junit.After;
 import org.junit.Assert;
 import org.junit.Before;

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeMXBean.java

@@ -17,6 +17,7 @@
  */
 package org.apache.hadoop.hdfs.server.namenode;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
 import com.google.common.base.Supplier;
 import com.google.common.util.concurrent.Uninterruptibles;
 import org.apache.commons.io.FileUtils;
@@ -50,7 +51,6 @@ import org.apache.hadoop.io.nativeio.NativeIO.POSIX.NoMlockCacheManipulator;
 import org.apache.hadoop.net.ServerSocketUtil;
 import org.apache.hadoop.test.GenericTestUtils;
 import org.apache.hadoop.util.VersionInfo;
-import org.codehaus.jackson.map.ObjectMapper;
 import org.junit.Assert;
 import org.junit.Test;
 import org.eclipse.jetty.util.ajax.JSON;

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/TestJsonUtil.java

@@ -42,11 +42,11 @@ import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
 import org.apache.hadoop.hdfs.protocol.HdfsConstants;
 import org.apache.hadoop.hdfs.protocol.HdfsFileStatus;
 import org.apache.hadoop.util.Time;
-import org.codehaus.jackson.map.ObjectMapper;
-import org.codehaus.jackson.map.ObjectReader;
 import org.junit.Assert;
 import org.junit.Test;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectReader;
 import com.google.common.collect.Lists;
 
 public class TestJsonUtil {