diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/pom.xml b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/pom.xml
index 4bd8ca970e525..b54e96d213a01 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/pom.xml
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/pom.xml
@@ -168,6 +168,11 @@
       <artifactId>junit-platform-launcher</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.junit.vintage</groupId>
+      <artifactId>junit-vintage-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <build>
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/webapp/TestAMWebServices.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/webapp/TestAMWebServices.java
index 2cc59ed664266..560bc75156099 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/webapp/TestAMWebServices.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/webapp/TestAMWebServices.java
@@ -28,13 +28,14 @@
 import java.util.Set;
 
 import javax.ws.rs.core.MediaType;
+import javax.ws.rs.NotAcceptableException;
 import javax.ws.rs.NotFoundException;
-import javax.ws.rs.ServiceUnavailableException;
 import javax.ws.rs.client.WebTarget;
 import javax.ws.rs.core.Application;
 import javax.ws.rs.core.Response;
+
+import static javax.ws.rs.core.Response.Status.NOT_ACCEPTABLE;
 import static javax.ws.rs.core.Response.Status.NOT_FOUND;
-import static javax.ws.rs.core.Response.Status.SERVICE_UNAVAILABLE;
 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
 
@@ -231,15 +232,15 @@ public void testInvalidUri2() throws JSONException, Exception {
 
   @Test
   public void testInvalidAccept() throws JSONException, Exception {
-    WebTarget r = target();
+    WebTarget r = targetWithJsonObject();
     String responseStr = "";
     try {
       responseStr = r.path("ws").path("v1").path("mapreduce")
           .request(MediaType.TEXT_PLAIN).get(String.class);
       fail("should have thrown exception on invalid uri");
-    } catch (ServiceUnavailableException sue) {
+    } catch (NotAcceptableException sue) {
       Response response = sue.getResponse();
-      assertResponseStatusCode(SERVICE_UNAVAILABLE, response.getStatusInfo());
+      assertResponseStatusCode(NOT_ACCEPTABLE, response.getStatusInfo());
       WebServicesTestUtils.checkStringMatch(
           "error string exists and shouldn't", "", responseStr);
     }
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/pom.xml b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/pom.xml
index ef424e3e992ee..81457e6845ec3 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/pom.xml
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/pom.xml
@@ -92,6 +92,11 @@
       <artifactId>junit-platform-launcher</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.junit.vintage</groupId>
+      <artifactId>junit-vintage-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <build>
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/pom.xml b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/pom.xml
index d8c9eaf19bb20..57f954ecd3841 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/pom.xml
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/pom.xml
@@ -115,6 +115,11 @@
           <artifactId>junit-platform-launcher</artifactId>
           <scope>test</scope>
       </dependency>
+      <dependency>
+          <groupId>org.junit.vintage</groupId>
+          <artifactId>junit-vintage-engine</artifactId>
+          <scope>test</scope>
+      </dependency>
   </dependencies>
 
   <build>
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/webapp/TestHsWebServices.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/webapp/TestHsWebServices.java
index c34df08b7ff7c..b320868242e29 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/webapp/TestHsWebServices.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/webapp/TestHsWebServices.java
@@ -20,13 +20,14 @@
 
 import static org.apache.hadoop.yarn.webapp.WebServicesTestUtils.assertResponseStatusCode;
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.fail;
 import static org.mockito.Mockito.mock;
 
 import java.io.StringReader;
 
 import javax.servlet.http.HttpServletResponse;
+import javax.ws.rs.NotAcceptableException;
 import javax.ws.rs.NotFoundException;
-import javax.ws.rs.ServiceUnavailableException;
 import javax.ws.rs.client.WebTarget;
 import javax.ws.rs.core.Application;
 import javax.ws.rs.core.MediaType;
@@ -232,12 +233,12 @@ public void testInvalidAccept() throws JSONException, Exception {
     WebTarget r = target();
     String responseStr = "";
     try {
-      Response response =
-          r.path("ws").path("v1").path("history").request(MediaType.TEXT_PLAIN).get();
-      throw new ServiceUnavailableException(response);
-    } catch (ServiceUnavailableException ue) {
+      responseStr = r.path("ws").path("v1").path("history").
+          request(MediaType.TEXT_PLAIN).get(String.class);
+      fail("should have thrown exception on invalid uri");
+    } catch (NotAcceptableException ue) {
       Response response = ue.getResponse();
-      assertResponseStatusCode(Response.Status.SERVICE_UNAVAILABLE,
+      assertResponseStatusCode(Response.Status.NOT_ACCEPTABLE,
           response.getStatusInfo());
       WebServicesTestUtils.checkStringMatch(
           "error string exists and shouldn't", "", responseStr);
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/pom.xml b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/pom.xml
index 8305867ba0827..b5deed6231e32 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/pom.xml
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/pom.xml
@@ -148,6 +148,11 @@
       <artifactId>junit-platform-launcher</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.junit.vintage</groupId>
+      <artifactId>junit-vintage-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
 
   </dependencies>
 
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/pom.xml b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/pom.xml
index 5ffa4f52b3080..f162b7037ee59 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/pom.xml
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/pom.xml
@@ -80,6 +80,11 @@
       <artifactId>junit-platform-launcher</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.junit.vintage</groupId>
+      <artifactId>junit-vintage-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <build>
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-shuffle/pom.xml b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-shuffle/pom.xml
index fee97311ee589..b1c1b51c81fc9 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-shuffle/pom.xml
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-shuffle/pom.xml
@@ -66,6 +66,11 @@
       <artifactId>junit-platform-launcher</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.junit.vintage</groupId>
+      <artifactId>junit-vintage-engine</artifactId>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <build>
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/timelineservice/ApplicationEntity.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/timelineservice/ApplicationEntity.java
index 20226aa8e9c68..87f3d2e9328f5 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/timelineservice/ApplicationEntity.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/timelineservice/ApplicationEntity.java
@@ -17,6 +17,7 @@
  */
 package org.apache.hadoop.yarn.api.records.timelineservice;
 
+import com.fasterxml.jackson.annotation.JsonInclude;
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.classification.InterfaceStability;
 
@@ -42,8 +43,12 @@ public ApplicationEntity(TimelineEntity entity) {
     }
   }
 
+  @JsonInclude(JsonInclude.Include.NON_NULL)
   public String getQueue() {
-    return getInfo().get(QUEUE_INFO_KEY).toString();
+    if (getInfo() != null && getInfo().containsKey(QUEUE_INFO_KEY)) {
+      return getInfo().get(QUEUE_INFO_KEY).toString();
+    }
+    return null;
   }
 
   public void setQueue(String queue) {