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Posted to commits@druid.apache.org by ni...@apache.org on 2019/07/08 08:03:07 UTC

[incubator-druid] branch master updated: Making StatusResponseHandler singleton and fixing all its instantiation invocations (#7969)

This is an automated email from the ASF dual-hosted git repository.

nishant pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-druid.git


The following commit(s) were added to refs/heads/master by this push:
     new 6701dc0  Making StatusResponseHandler singleton and fixing all its instantiation invocations (#7969)
6701dc0 is described below

commit 6701dc08fe96e32edf49645a8f07cb17ee6038a3
Author: Sashidhar Thallam <t....@gmail.com>
AuthorDate: Mon Jul 8 13:33:00 2019 +0530

    Making StatusResponseHandler singleton and fixing all its instantiation invocations (#7969)
    
    * Making StatusResponseHandler singleton and fixing all its instantiation invocations
    
    * Using StatusResponseHandler.getInstance() where applicable
---
 .../http/client/response/StatusResponseHandler.java     | 17 +++++++++++------
 .../java/util/http/client/FriendlyServersTest.java      | 14 +++++++-------
 .../druid/java/util/http/client/JankyServersTest.java   | 15 +++++++--------
 .../druid/indexing/overlord/RemoteTaskRunner.java       |  4 +---
 .../indexing/overlord/WorkerTaskRunnerQueryAdapter.java |  3 +--
 .../druid/indexing/overlord/hrtr/WorkerHolder.java      |  6 ++----
 .../clients/AbstractQueryResourceTestClient.java        |  3 +--
 .../testing/clients/ClientInfoResourceTestClient.java   |  3 +--
 .../testing/clients/CoordinatorResourceTestClient.java  |  3 +--
 .../clients/EventReceiverFirehoseTestClient.java        |  4 +---
 .../testing/clients/OverlordResourceTestClient.java     | 11 ++++-------
 .../main/java/org/testng/DruidTestRunnerFactory.java    |  4 +---
 .../apache/druid/tests/indexer/ITUnionQueryTest.java    |  4 +---
 .../tests/security/ITBasicAuthConfigurationTest.java    |  4 +---
 .../java/org/apache/druid/tests/security/ITTLSTest.java |  4 +---
 .../java/org/apache/druid/client/DirectDruidClient.java |  3 +--
 .../druid/server/initialization/JettyQosTest.java       |  5 ++---
 .../apache/druid/server/initialization/JettyTest.java   |  2 +-
 18 files changed, 45 insertions(+), 64 deletions(-)

diff --git a/core/src/main/java/org/apache/druid/java/util/http/client/response/StatusResponseHandler.java b/core/src/main/java/org/apache/druid/java/util/http/client/response/StatusResponseHandler.java
index 594acd2..03eb3cd 100644
--- a/core/src/main/java/org/apache/druid/java/util/http/client/response/StatusResponseHandler.java
+++ b/core/src/main/java/org/apache/druid/java/util/http/client/response/StatusResponseHandler.java
@@ -22,17 +22,22 @@ package org.apache.druid.java.util.http.client.response;
 import org.jboss.netty.handler.codec.http.HttpChunk;
 import org.jboss.netty.handler.codec.http.HttpResponse;
 
-import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
 
 /**
  */
 public class StatusResponseHandler implements HttpResponseHandler<StatusResponseHolder, StatusResponseHolder>
 {
-  private final Charset charset;
 
-  public StatusResponseHandler(Charset charset)
+  private static final StatusResponseHandler INSTANCE = new StatusResponseHandler();
+
+  private StatusResponseHandler()
+  {
+  }
+
+  public static StatusResponseHandler getInstance()
   {
-    this.charset = charset;
+    return INSTANCE;
   }
 
   @Override
@@ -41,7 +46,7 @@ public class StatusResponseHandler implements HttpResponseHandler<StatusResponse
     return ClientResponse.unfinished(
         new StatusResponseHolder(
             response.getStatus(),
-            new StringBuilder(response.getContent().toString(charset))
+            new StringBuilder(response.getContent().toString(StandardCharsets.UTF_8))
         )
     );
   }
@@ -59,7 +64,7 @@ public class StatusResponseHandler implements HttpResponseHandler<StatusResponse
       return ClientResponse.finished(null);
     }
 
-    builder.append(chunk.getContent().toString(charset));
+    builder.append(chunk.getContent().toString(StandardCharsets.UTF_8));
     return response;
   }
 
diff --git a/core/src/test/java/org/apache/druid/java/util/http/client/FriendlyServersTest.java b/core/src/test/java/org/apache/druid/java/util/http/client/FriendlyServersTest.java
index bad0350..c6c9350 100644
--- a/core/src/test/java/org/apache/druid/java/util/http/client/FriendlyServersTest.java
+++ b/core/src/test/java/org/apache/druid/java/util/http/client/FriendlyServersTest.java
@@ -97,7 +97,7 @@ public class FriendlyServersTest
       final StatusResponseHolder response = client
           .go(
               new Request(HttpMethod.GET, new URL(StringUtils.format("http://localhost:%d/", serverSocket.getLocalPort()))),
-              new StatusResponseHandler(StandardCharsets.UTF_8)
+              StatusResponseHandler.getInstance()
           ).get();
 
       Assert.assertEquals(200, response.getStatus().getCode());
@@ -156,7 +156,7 @@ public class FriendlyServersTest
       final StatusResponseHolder response = client
           .go(
               new Request(HttpMethod.GET, new URL(StringUtils.format("http://localhost:%d/", serverSocket.getLocalPort()))),
-              new StatusResponseHandler(StandardCharsets.UTF_8)
+              StatusResponseHandler.getInstance()
           ).get();
 
       Assert.assertEquals(200, response.getStatus().getCode());
@@ -213,7 +213,7 @@ public class FriendlyServersTest
                     HttpMethod.GET,
                     new URL(StringUtils.format("https://localhost:%d/", sslConnector.getLocalPort()))
                 ),
-                new StatusResponseHandler(StandardCharsets.UTF_8)
+                StatusResponseHandler.getInstance()
             ).get().getStatus();
         Assert.assertEquals(404, status.getCode());
       }
@@ -226,7 +226,7 @@ public class FriendlyServersTest
                     HttpMethod.GET,
                     new URL(StringUtils.format("https://127.0.0.1:%d/", sslConnector.getLocalPort()))
                 ),
-                new StatusResponseHandler(StandardCharsets.UTF_8)
+                StatusResponseHandler.getInstance()
             );
 
         Throwable ea = null;
@@ -249,7 +249,7 @@ public class FriendlyServersTest
                     HttpMethod.GET,
                     new URL(StringUtils.format("https://localhost:%d/", sslConnector.getLocalPort()))
                 ),
-                new StatusResponseHandler(StandardCharsets.UTF_8)
+                StatusResponseHandler.getInstance()
             );
 
         Throwable eb = null;
@@ -285,7 +285,7 @@ public class FriendlyServersTest
         final HttpResponseStatus status = client
             .go(
                 new Request(HttpMethod.GET, new URL("https://httpbin.org/get")),
-                new StatusResponseHandler(StandardCharsets.UTF_8)
+                StatusResponseHandler.getInstance()
             ).get().getStatus();
 
         Assert.assertEquals(200, status.getCode());
@@ -296,7 +296,7 @@ public class FriendlyServersTest
             .go(
                 new Request(HttpMethod.POST, new URL("https://httpbin.org/post"))
                     .setContent(new byte[]{'a', 'b', 'c', 1, 2, 3}),
-                new StatusResponseHandler(StandardCharsets.UTF_8)
+                StatusResponseHandler.getInstance()
             ).get().getStatus();
 
         Assert.assertEquals(200, status.getCode());
diff --git a/core/src/test/java/org/apache/druid/java/util/http/client/JankyServersTest.java b/core/src/test/java/org/apache/druid/java/util/http/client/JankyServersTest.java
index 77ca8e3..69ded27 100644
--- a/core/src/test/java/org/apache/druid/java/util/http/client/JankyServersTest.java
+++ b/core/src/test/java/org/apache/druid/java/util/http/client/JankyServersTest.java
@@ -42,7 +42,6 @@ import java.io.OutputStream;
 import java.net.ServerSocket;
 import java.net.Socket;
 import java.net.URL;
-import java.nio.charset.StandardCharsets;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
@@ -158,7 +157,7 @@ public class JankyServersTest
       final ListenableFuture<StatusResponseHolder> future = client
           .go(
               new Request(HttpMethod.GET, new URL(StringUtils.format("http://localhost:%d/", silentServerSocket.getLocalPort()))),
-              new StatusResponseHandler(StandardCharsets.UTF_8)
+              StatusResponseHandler.getInstance()
           );
 
       Throwable e = null;
@@ -186,7 +185,7 @@ public class JankyServersTest
       final ListenableFuture<StatusResponseHolder> future = client
           .go(
               new Request(HttpMethod.GET, new URL(StringUtils.format("http://localhost:%d/", silentServerSocket.getLocalPort()))),
-              new StatusResponseHandler(StandardCharsets.UTF_8),
+              StatusResponseHandler.getInstance(),
               new Duration(100L)
           );
 
@@ -219,7 +218,7 @@ public class JankyServersTest
       final ListenableFuture<StatusResponseHolder> response = client
           .go(
               new Request(HttpMethod.GET, new URL(StringUtils.format("https://localhost:%d/", silentServerSocket.getLocalPort()))),
-              new StatusResponseHandler(StandardCharsets.UTF_8)
+              StatusResponseHandler.getInstance()
           );
 
       Throwable e = null;
@@ -247,7 +246,7 @@ public class JankyServersTest
       final ListenableFuture<StatusResponseHolder> response = client
           .go(
               new Request(HttpMethod.GET, new URL(StringUtils.format("http://localhost:%d/", closingServerSocket.getLocalPort()))),
-              new StatusResponseHandler(StandardCharsets.UTF_8)
+              StatusResponseHandler.getInstance()
           );
       Throwable e = null;
       try {
@@ -276,7 +275,7 @@ public class JankyServersTest
       final ListenableFuture<StatusResponseHolder> response = client
           .go(
               new Request(HttpMethod.GET, new URL(StringUtils.format("https://localhost:%d/", closingServerSocket.getLocalPort()))),
-              new StatusResponseHandler(StandardCharsets.UTF_8)
+              StatusResponseHandler.getInstance()
           );
 
       Throwable e = null;
@@ -311,7 +310,7 @@ public class JankyServersTest
       final ListenableFuture<StatusResponseHolder> response = client
           .go(
               new Request(HttpMethod.GET, new URL(StringUtils.format("http://localhost:%d/", echoServerSocket.getLocalPort()))),
-              new StatusResponseHandler(StandardCharsets.UTF_8)
+              StatusResponseHandler.getInstance()
           );
 
       expectedException.expect(ExecutionException.class);
@@ -335,7 +334,7 @@ public class JankyServersTest
       final ListenableFuture<StatusResponseHolder> response = client
           .go(
               new Request(HttpMethod.GET, new URL(StringUtils.format("https://localhost:%d/", echoServerSocket.getLocalPort()))),
-              new StatusResponseHandler(StandardCharsets.UTF_8)
+              StatusResponseHandler.getInstance()
           );
 
       expectedException.expect(ExecutionException.class);
diff --git a/indexing-service/src/main/java/org/apache/druid/indexing/overlord/RemoteTaskRunner.java b/indexing-service/src/main/java/org/apache/druid/indexing/overlord/RemoteTaskRunner.java
index 927f03e..65ffba7 100644
--- a/indexing-service/src/main/java/org/apache/druid/indexing/overlord/RemoteTaskRunner.java
+++ b/indexing-service/src/main/java/org/apache/druid/indexing/overlord/RemoteTaskRunner.java
@@ -92,7 +92,6 @@ import javax.annotation.Nullable;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.URL;
-import java.nio.charset.StandardCharsets;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Comparator;
@@ -129,7 +128,6 @@ import java.util.concurrent.TimeUnit;
 public class RemoteTaskRunner implements WorkerTaskRunner, TaskLogStreamer
 {
   private static final EmittingLogger log = new EmittingLogger(RemoteTaskRunner.class);
-  private static final StatusResponseHandler RESPONSE_HANDLER = new StatusResponseHandler(StandardCharsets.UTF_8);
   private static final Joiner JOINER = Joiner.on("/");
 
   private final ObjectMapper jsonMapper;
@@ -564,7 +562,7 @@ public class RemoteTaskRunner implements WorkerTaskRunner, TaskLogStreamer
         url = TaskRunnerUtils.makeWorkerURL(zkWorker.getWorker(), "/druid/worker/v1/task/%s/shutdown", taskId);
         final StatusResponseHolder response = httpClient.go(
             new Request(HttpMethod.POST, url),
-            RESPONSE_HANDLER,
+            StatusResponseHandler.getInstance(),
             shutdownTimeout
         ).get();
 
diff --git a/indexing-service/src/main/java/org/apache/druid/indexing/overlord/WorkerTaskRunnerQueryAdapter.java b/indexing-service/src/main/java/org/apache/druid/indexing/overlord/WorkerTaskRunnerQueryAdapter.java
index 7656761..362a832 100644
--- a/indexing-service/src/main/java/org/apache/druid/indexing/overlord/WorkerTaskRunnerQueryAdapter.java
+++ b/indexing-service/src/main/java/org/apache/druid/indexing/overlord/WorkerTaskRunnerQueryAdapter.java
@@ -36,7 +36,6 @@ import org.jboss.netty.handler.codec.http.HttpResponseStatus;
 
 import javax.inject.Inject;
 import java.net.URL;
-import java.nio.charset.StandardCharsets;
 import java.util.concurrent.ExecutionException;
 
 public class WorkerTaskRunnerQueryAdapter
@@ -95,7 +94,7 @@ public class WorkerTaskRunnerQueryAdapter
     try {
       final StatusResponseHolder response = httpClient.go(
           new Request(HttpMethod.POST, workerUrl),
-          new StatusResponseHandler(StandardCharsets.UTF_8)
+          StatusResponseHandler.getInstance()
       ).get();
 
       log.info(
diff --git a/indexing-service/src/main/java/org/apache/druid/indexing/overlord/hrtr/WorkerHolder.java b/indexing-service/src/main/java/org/apache/druid/indexing/overlord/hrtr/WorkerHolder.java
index caee057..b324120 100644
--- a/indexing-service/src/main/java/org/apache/druid/indexing/overlord/hrtr/WorkerHolder.java
+++ b/indexing-service/src/main/java/org/apache/druid/indexing/overlord/hrtr/WorkerHolder.java
@@ -45,7 +45,6 @@ import org.jboss.netty.handler.codec.http.HttpMethod;
 import org.joda.time.DateTime;
 
 import java.net.URL;
-import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.List;
@@ -71,7 +70,6 @@ public class WorkerHolder
   {
   };
 
-  private static final StatusResponseHandler RESPONSE_HANDLER = new StatusResponseHandler(StandardCharsets.UTF_8);
 
   private final Worker worker;
   private Worker disabledWorker;
@@ -231,7 +229,7 @@ public class WorkerHolder
                   new Request(HttpMethod.POST, url)
                       .addHeader(HttpHeaders.Names.CONTENT_TYPE, SmileMediaTypes.APPLICATION_JACKSON_SMILE)
                       .setContent(smileMapper.writeValueAsBytes(task)),
-                  RESPONSE_HANDLER,
+                  StatusResponseHandler.getInstance(),
                   config.getAssignRequestHttpTimeout().toStandardDuration()
               ).get();
 
@@ -276,7 +274,7 @@ public class WorkerHolder
             try {
               final StatusResponseHolder response = httpClient.go(
                   new Request(HttpMethod.POST, url),
-                  RESPONSE_HANDLER,
+                  StatusResponseHandler.getInstance(),
                   config.getShutdownRequestHttpTimeout().toStandardDuration()
               ).get();
 
diff --git a/integration-tests/src/main/java/org/apache/druid/testing/clients/AbstractQueryResourceTestClient.java b/integration-tests/src/main/java/org/apache/druid/testing/clients/AbstractQueryResourceTestClient.java
index c120244..3babf3e 100644
--- a/integration-tests/src/main/java/org/apache/druid/testing/clients/AbstractQueryResourceTestClient.java
+++ b/integration-tests/src/main/java/org/apache/druid/testing/clients/AbstractQueryResourceTestClient.java
@@ -33,7 +33,6 @@ import org.jboss.netty.handler.codec.http.HttpMethod;
 import org.jboss.netty.handler.codec.http.HttpResponseStatus;
 
 import java.net.URL;
-import java.nio.charset.StandardCharsets;
 import java.util.List;
 import java.util.Map;
 
@@ -54,7 +53,7 @@ public abstract class AbstractQueryResourceTestClient<QueryType>
     this.jsonMapper = jsonMapper;
     this.httpClient = httpClient;
     this.routerUrl = config.getRouterUrl();
-    this.responseHandler = new StatusResponseHandler(StandardCharsets.UTF_8);
+    this.responseHandler = StatusResponseHandler.getInstance();
   }
 
   public abstract String getBrokerURL();
diff --git a/integration-tests/src/main/java/org/apache/druid/testing/clients/ClientInfoResourceTestClient.java b/integration-tests/src/main/java/org/apache/druid/testing/clients/ClientInfoResourceTestClient.java
index 0b9252e..09dfff0 100644
--- a/integration-tests/src/main/java/org/apache/druid/testing/clients/ClientInfoResourceTestClient.java
+++ b/integration-tests/src/main/java/org/apache/druid/testing/clients/ClientInfoResourceTestClient.java
@@ -34,7 +34,6 @@ import org.jboss.netty.handler.codec.http.HttpMethod;
 import org.jboss.netty.handler.codec.http.HttpResponseStatus;
 
 import java.net.URL;
-import java.nio.charset.StandardCharsets;
 import java.util.List;
 
 public class ClientInfoResourceTestClient
@@ -54,7 +53,7 @@ public class ClientInfoResourceTestClient
     this.jsonMapper = jsonMapper;
     this.httpClient = httpClient;
     this.brokerUrl = config.getBrokerUrl();
-    this.responseHandler = new StatusResponseHandler(StandardCharsets.UTF_8);
+    this.responseHandler = StatusResponseHandler.getInstance();
   }
 
   private String getBrokerURL()
diff --git a/integration-tests/src/main/java/org/apache/druid/testing/clients/CoordinatorResourceTestClient.java b/integration-tests/src/main/java/org/apache/druid/testing/clients/CoordinatorResourceTestClient.java
index 678169a..9aafd65 100644
--- a/integration-tests/src/main/java/org/apache/druid/testing/clients/CoordinatorResourceTestClient.java
+++ b/integration-tests/src/main/java/org/apache/druid/testing/clients/CoordinatorResourceTestClient.java
@@ -41,7 +41,6 @@ import org.jboss.netty.handler.codec.http.HttpResponseStatus;
 import org.joda.time.Interval;
 
 import java.net.URL;
-import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
@@ -65,7 +64,7 @@ public class CoordinatorResourceTestClient
     this.jsonMapper = jsonMapper;
     this.httpClient = httpClient;
     this.coordinator = config.getCoordinatorUrl();
-    this.responseHandler = new StatusResponseHandler(StandardCharsets.UTF_8);
+    this.responseHandler = StatusResponseHandler.getInstance();
   }
 
   private String getCoordinatorURL()
diff --git a/integration-tests/src/main/java/org/apache/druid/testing/clients/EventReceiverFirehoseTestClient.java b/integration-tests/src/main/java/org/apache/druid/testing/clients/EventReceiverFirehoseTestClient.java
index 2bd7d14..9ab6636 100644
--- a/integration-tests/src/main/java/org/apache/druid/testing/clients/EventReceiverFirehoseTestClient.java
+++ b/integration-tests/src/main/java/org/apache/druid/testing/clients/EventReceiverFirehoseTestClient.java
@@ -45,7 +45,6 @@ import java.util.Map;
 public class EventReceiverFirehoseTestClient
 {
   private final String host;
-  private final StatusResponseHandler responseHandler;
   private final ObjectMapper jsonMapper;
   private final HttpClient httpClient;
   private final String chatID;
@@ -61,7 +60,6 @@ public class EventReceiverFirehoseTestClient
   {
     this.host = host;
     this.jsonMapper = jsonMapper;
-    this.responseHandler = new StatusResponseHandler(StandardCharsets.UTF_8);
     this.httpClient = httpClient;
     this.chatID = chatID;
     this.smileMapper = smileMapper;
@@ -89,7 +87,7 @@ public class EventReceiverFirehoseTestClient
       StatusResponseHolder response = httpClient.go(
           new Request(HttpMethod.POST, new URL(getURL()))
               .setContent(mediaType, objectMapper.writeValueAsBytes(events)),
-          responseHandler
+          StatusResponseHandler.getInstance()
       ).get();
 
       if (!response.getStatus().equals(HttpResponseStatus.OK)) {
diff --git a/integration-tests/src/main/java/org/apache/druid/testing/clients/OverlordResourceTestClient.java b/integration-tests/src/main/java/org/apache/druid/testing/clients/OverlordResourceTestClient.java
index 578f8c5..1f24236 100644
--- a/integration-tests/src/main/java/org/apache/druid/testing/clients/OverlordResourceTestClient.java
+++ b/integration-tests/src/main/java/org/apache/druid/testing/clients/OverlordResourceTestClient.java
@@ -41,7 +41,6 @@ import org.jboss.netty.handler.codec.http.HttpMethod;
 import org.jboss.netty.handler.codec.http.HttpResponseStatus;
 
 import java.net.URL;
-import java.nio.charset.StandardCharsets;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.Callable;
@@ -52,7 +51,6 @@ public class OverlordResourceTestClient
   private final ObjectMapper jsonMapper;
   private final HttpClient httpClient;
   private final String indexer;
-  private final StatusResponseHandler responseHandler;
 
   @Inject
   OverlordResourceTestClient(
@@ -64,7 +62,6 @@ public class OverlordResourceTestClient
     this.jsonMapper = jsonMapper;
     this.httpClient = httpClient;
     this.indexer = config.getIndexerUrl();
-    this.responseHandler = new StatusResponseHandler(StandardCharsets.UTF_8);
   }
 
   private String getIndexerURL()
@@ -86,7 +83,7 @@ public class OverlordResourceTestClient
                         "application/json",
                         StringUtils.toUtf8(task)
                     ),
-                responseHandler
+                StatusResponseHandler.getInstance()
             ).get();
             if (!response.getStatus().equals(HttpResponseStatus.OK)) {
               throw new ISE(
@@ -212,7 +209,7 @@ public class OverlordResourceTestClient
                   "application/json",
                   StringUtils.toUtf8(spec)
               ),
-          responseHandler
+          StatusResponseHandler.getInstance()
       ).get();
       if (!response.getStatus().equals(HttpResponseStatus.OK)) {
         throw new ISE(
@@ -245,7 +242,7 @@ public class OverlordResourceTestClient
                   StringUtils.urlEncode(id)
               ))
           ),
-          responseHandler
+          StatusResponseHandler.getInstance()
       ).get();
       if (!response.getStatus().equals(HttpResponseStatus.OK)) {
         throw new ISE(
@@ -265,7 +262,7 @@ public class OverlordResourceTestClient
   {
     try {
       StatusResponseHolder response = this.httpClient
-          .go(new Request(method, new URL(url)), responseHandler).get();
+          .go(new Request(method, new URL(url)), StatusResponseHandler.getInstance()).get();
       if (!response.getStatus().equals(HttpResponseStatus.OK)) {
         throw new ISE("Error while making request to indexer [%s %s]", response.getStatus(), response.getContent());
       }
diff --git a/integration-tests/src/main/java/org/testng/DruidTestRunnerFactory.java b/integration-tests/src/main/java/org/testng/DruidTestRunnerFactory.java
index f7ad9ff..bc2e4f5 100644
--- a/integration-tests/src/main/java/org/testng/DruidTestRunnerFactory.java
+++ b/integration-tests/src/main/java/org/testng/DruidTestRunnerFactory.java
@@ -39,7 +39,6 @@ import org.testng.internal.annotations.IAnnotationFinder;
 import org.testng.xml.XmlTest;
 
 import java.net.URL;
-import java.nio.charset.StandardCharsets;
 import java.util.List;
 
 /**
@@ -119,13 +118,12 @@ public class DruidTestRunnerFactory implements ITestRunnerFactory
 
     public void waitUntilInstanceReady(final HttpClient client, final String host)
     {
-      final StatusResponseHandler handler = new StatusResponseHandler(StandardCharsets.UTF_8);
       RetryUtil.retryUntilTrue(
           () -> {
             try {
               StatusResponseHolder response = client.go(
                   new Request(HttpMethod.GET, new URL(StringUtils.format("%s/status/health", host))),
-                  handler
+                  StatusResponseHandler.getInstance()
               ).get();
 
               LOG.info("%s %s", response.getStatus(), response.getContent());
diff --git a/integration-tests/src/test/java/org/apache/druid/tests/indexer/ITUnionQueryTest.java b/integration-tests/src/test/java/org/apache/druid/tests/indexer/ITUnionQueryTest.java
index b32a883..ef577a7 100644
--- a/integration-tests/src/test/java/org/apache/druid/tests/indexer/ITUnionQueryTest.java
+++ b/integration-tests/src/test/java/org/apache/druid/tests/indexer/ITUnionQueryTest.java
@@ -48,7 +48,6 @@ import org.testng.annotations.Test;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.URL;
-import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.Callable;
@@ -210,13 +209,12 @@ public class ITUnionQueryTest extends AbstractIndexerTest
       LOG.info("Event Receiver Found at host [%s]", host);
 
       LOG.info("Checking worker /status/health for [%s]", host);
-      final StatusResponseHandler handler = new StatusResponseHandler(StandardCharsets.UTF_8);
       RetryUtil.retryUntilTrue(
           () -> {
             try {
               StatusResponseHolder response = httpClient.go(
                   new Request(HttpMethod.GET, new URL(StringUtils.format("https://%s/status/health", host))),
-                  handler
+                  StatusResponseHandler.getInstance()
               ).get();
               return response.getStatus().equals(HttpResponseStatus.OK);
             }
diff --git a/integration-tests/src/test/java/org/apache/druid/tests/security/ITBasicAuthConfigurationTest.java b/integration-tests/src/test/java/org/apache/druid/tests/security/ITBasicAuthConfigurationTest.java
index 5913d7c..0c76339 100644
--- a/integration-tests/src/test/java/org/apache/druid/tests/security/ITBasicAuthConfigurationTest.java
+++ b/integration-tests/src/test/java/org/apache/druid/tests/security/ITBasicAuthConfigurationTest.java
@@ -56,7 +56,6 @@ import org.testng.annotations.Test;
 
 import javax.ws.rs.core.MediaType;
 import java.net.URL;
-import java.nio.charset.StandardCharsets;
 import java.sql.Connection;
 import java.sql.DriverManager;
 import java.sql.ResultSet;
@@ -114,7 +113,6 @@ public class ITBasicAuthConfigurationTest
   @Client
   HttpClient httpClient;
 
-  StatusResponseHandler responseHandler = new StatusResponseHandler(StandardCharsets.UTF_8);
 
   @Inject
   private CoordinatorResourceTestClient coordinatorClient;
@@ -620,7 +618,7 @@ public class ITBasicAuthConfigurationTest
       while (true) {
         response = httpClient.go(
             request,
-            responseHandler
+            StatusResponseHandler.getInstance()
         ).get();
 
         if (!response.getStatus().equals(expectedStatus)) {
diff --git a/integration-tests/src/test/java/org/apache/druid/tests/security/ITTLSTest.java b/integration-tests/src/test/java/org/apache/druid/tests/security/ITTLSTest.java
index 3b841e6..e7bc731 100644
--- a/integration-tests/src/test/java/org/apache/druid/tests/security/ITTLSTest.java
+++ b/integration-tests/src/test/java/org/apache/druid/tests/security/ITTLSTest.java
@@ -54,7 +54,6 @@ import javax.net.ssl.SSLException;
 import javax.ws.rs.core.MediaType;
 import java.io.IOException;
 import java.net.URL;
-import java.nio.charset.StandardCharsets;
 
 @Guice(moduleFactory = DruidTestModuleFactory.class)
 public class ITTLSTest
@@ -85,7 +84,6 @@ public class ITTLSTest
   @Inject
   TLSCertificateChecker certificateChecker;
 
-  StatusResponseHandler responseHandler = new StatusResponseHandler(StandardCharsets.UTF_8);
 
   @Test
   public void testPlaintextAccess()
@@ -504,7 +502,7 @@ public class ITTLSTest
       while (true) {
         response = httpClient.go(
             request,
-            responseHandler
+            StatusResponseHandler.getInstance()
         ).get();
 
         if (!response.getStatus().equals(HttpResponseStatus.OK)) {
diff --git a/server/src/main/java/org/apache/druid/client/DirectDruidClient.java b/server/src/main/java/org/apache/druid/client/DirectDruidClient.java
index d857a9c..0db3335 100644
--- a/server/src/main/java/org/apache/druid/client/DirectDruidClient.java
+++ b/server/src/main/java/org/apache/druid/client/DirectDruidClient.java
@@ -64,7 +64,6 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.SequenceInputStream;
 import java.net.URL;
-import java.nio.charset.StandardCharsets;
 import java.util.Enumeration;
 import java.util.Map;
 import java.util.concurrent.BlockingQueue;
@@ -486,7 +485,7 @@ public class DirectDruidClient<T> implements QueryRunner<T>
                            ? SmileMediaTypes.APPLICATION_JACKSON_SMILE
                            : MediaType.APPLICATION_JSON
                        ),
-                      new StatusResponseHandler(StandardCharsets.UTF_8),
+                      StatusResponseHandler.getInstance(),
                       Duration.standardSeconds(1)
                   ).get(1, TimeUnit.SECONDS);
 
diff --git a/server/src/test/java/org/apache/druid/server/initialization/JettyQosTest.java b/server/src/test/java/org/apache/druid/server/initialization/JettyQosTest.java
index f7b0f95..e9f7fc0 100644
--- a/server/src/test/java/org/apache/druid/server/initialization/JettyQosTest.java
+++ b/server/src/test/java/org/apache/druid/server/initialization/JettyQosTest.java
@@ -51,7 +51,6 @@ import org.junit.Assert;
 import org.junit.Test;
 
 import java.net.URL;
-import java.nio.charset.Charset;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.atomic.AtomicLong;
@@ -131,7 +130,7 @@ public class JettyQosTest extends BaseJettyTest
               ListenableFuture<StatusResponseHolder> go =
                   slowClient.go(
                       new Request(HttpMethod.GET, new URL("http://localhost:" + port + "/slow/hello")),
-                      new StatusResponseHandler(Charset.defaultCharset())
+                      StatusResponseHandler.getInstance()
                   );
               go.get();
               slowCount.incrementAndGet();
@@ -166,7 +165,7 @@ public class JettyQosTest extends BaseJettyTest
               ListenableFuture<StatusResponseHolder> go =
                   fastClient.go(
                       new Request(HttpMethod.GET, new URL("http://localhost:" + port + "/default")),
-                      new StatusResponseHandler(Charset.defaultCharset())
+                    StatusResponseHandler.getInstance()
                   );
               go.get();
               fastCount.incrementAndGet();
diff --git a/server/src/test/java/org/apache/druid/server/initialization/JettyTest.java b/server/src/test/java/org/apache/druid/server/initialization/JettyTest.java
index 4f5ea1f..5760805 100644
--- a/server/src/test/java/org/apache/druid/server/initialization/JettyTest.java
+++ b/server/src/test/java/org/apache/druid/server/initialization/JettyTest.java
@@ -172,7 +172,7 @@ public class JettyTest extends BaseJettyTest
                         ListenableFuture<StatusResponseHolder> go =
                             client.go(
                                 new Request(HttpMethod.GET, new URL("http://localhost:" + port + "/slow/hello")),
-                                new StatusResponseHandler(Charset.defaultCharset())
+                                StatusResponseHandler.getInstance()
                             );
                         startTime2 = System.currentTimeMillis();
                         go.get();


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