Merge branch '6.x' into ccr-6.x

* 6.x:
  Client: Deprecate many argument performRequest (#30315)
  Mute ML upgrade test (#30458)

Author: dnhatn

client/rest/src/main/java/org/elasticsearch/client/RestClient.java

@@ -210,7 +210,9 @@ public void performRequestAsync(Request request, ResponseListener responseListen
      * @throws IOException in case of a problem or the connection was aborted
      * @throws ClientProtocolException in case of an http protocol error
      * @throws ResponseException in case Elasticsearch responded with a status code that indicated an error
+     * @deprecated prefer {@link #performRequest(Request)}
      */
+    @Deprecated
     public Response performRequest(String method, String endpoint, Header... headers) throws IOException {
         Request request = new Request(method, endpoint);
         request.setHeaders(headers);
@@ -229,7 +231,9 @@ public Response performRequest(String method, String endpoint, Header... headers
      * @throws IOException in case of a problem or the connection was aborted
      * @throws ClientProtocolException in case of an http protocol error
      * @throws ResponseException in case Elasticsearch responded with a status code that indicated an error
+     * @deprecated prefer {@link #performRequest(Request)}
      */
+    @Deprecated
     public Response performRequest(String method, String endpoint, Map<String, String> params, Header... headers) throws IOException {
         Request request = new Request(method, endpoint);
         addParameters(request, params);
@@ -252,7 +256,9 @@ public Response performRequest(String method, String endpoint, Map<String, Strin
      * @throws IOException in case of a problem or the connection was aborted
      * @throws ClientProtocolException in case of an http protocol error
      * @throws ResponseException in case Elasticsearch responded with a status code that indicated an error
+     * @deprecated prefer {@link #performRequest(Request)}
      */
+    @Deprecated
     public Response performRequest(String method, String endpoint, Map<String, String> params,
                                    HttpEntity entity, Header... headers) throws IOException {
         Request request = new Request(method, endpoint);
@@ -289,7 +295,9 @@ public Response performRequest(String method, String endpoint, Map<String, Strin
      * @throws IOException in case of a problem or the connection was aborted
      * @throws ClientProtocolException in case of an http protocol error
      * @throws ResponseException in case Elasticsearch responded with a status code that indicated an error
+     * @deprecated prefer {@link #performRequest(Request)}
      */
+    @Deprecated
     public Response performRequest(String method, String endpoint, Map<String, String> params,
                                    HttpEntity entity, HttpAsyncResponseConsumerFactory httpAsyncResponseConsumerFactory,
                                    Header... headers) throws IOException {
@@ -310,7 +318,9 @@ public Response performRequest(String method, String endpoint, Map<String, Strin
      * @param endpoint the path of the request (without host and port)
      * @param responseListener the {@link ResponseListener} to notify when the request is completed or fails
      * @param headers the optional request headers
+     * @deprecated prefer {@link #performRequestAsync(Request, ResponseListener)}
      */
+    @Deprecated
     public void performRequestAsync(String method, String endpoint, ResponseListener responseListener, Header... headers) {
         Request request;
         try {
@@ -333,7 +343,9 @@ public void performRequestAsync(String method, String endpoint, ResponseListener
      * @param params the query_string parameters
      * @param responseListener the {@link ResponseListener} to notify when the request is completed or fails
      * @param headers the optional request headers
+     * @deprecated prefer {@link #performRequestAsync(Request, ResponseListener)}
      */
+    @Deprecated
     public void performRequestAsync(String method, String endpoint, Map<String, String> params,
                                     ResponseListener responseListener, Header... headers) {
         Request request;
@@ -361,7 +373,9 @@ public void performRequestAsync(String method, String endpoint, Map<String, Stri
      * @param entity the body of the request, null if not applicable
      * @param responseListener the {@link ResponseListener} to notify when the request is completed or fails
      * @param headers the optional request headers
+     * @deprecated prefer {@link #performRequestAsync(Request, ResponseListener)}
      */
+    @Deprecated
     public void performRequestAsync(String method, String endpoint, Map<String, String> params,
                                     HttpEntity entity, ResponseListener responseListener, Header... headers) {
         Request request;
@@ -394,7 +408,9 @@ public void performRequestAsync(String method, String endpoint, Map<String, Stri
      * connection on the client side.
      * @param responseListener the {@link ResponseListener} to notify when the request is completed or fails
      * @param headers the optional request headers
+     * @deprecated prefer {@link #performRequestAsync(Request, ResponseListener)}
      */
+    @Deprecated
     public void performRequestAsync(String method, String endpoint, Map<String, String> params,
                                     HttpEntity entity, HttpAsyncResponseConsumerFactory httpAsyncResponseConsumerFactory,
                                     ResponseListener responseListener, Header... headers) {

docs/CHANGELOG.asciidoc

@@ -3,7 +3,7 @@
 
 [partintro]
 --
-// To add a release, copy and paste the template text 
+// To add a release, copy and paste the template text
 // and add a link to the new section. Note that release subheads must
 // be floated and sections cannot be empty.
 
@@ -296,8 +296,11 @@ are used.
 //[float]
 //=== Breaking Java Changes
 
-//[float]
-//=== Deprecations
+[float]
+=== Deprecations
+
+Deprecated multi-argument versions of the request methods in the RestClient.
+Prefer the "Request" object flavored methods. ({pull}30315[#30315])
 
 //[float]
 //=== New Features
@@ -310,6 +313,10 @@ analysis module.  ({pull}30397[#30397])
 
 Highlighting::
 * Limit analyzed text for highlighting (improvements) {pull}28808[#28808] (issues: {issue}16764[#16764], {issue}27934[#27934])
+{ref-64}/breaking_64_api_changes.html#copy-source-settings-on-resize[Allow copying source settings on index resize operations] ({pull}30255[#30255])
+
+Added new "Request" object flavored request methods in the RestClient. Prefer
+these instead of the multi-argument versions. ({pull}29623[#29623])
 
 Recovery::
 * Require translogUUID when reading global checkpoint {pull}28587[#28587] (issue: {issue}28435[#28435])

x-pack/qa/rolling-upgrade/src/test/java/org/elasticsearch/upgrades/UpgradeClusterClientYamlTestSuiteIT.java

@@ -7,6 +7,8 @@
 
 import com.carrotsearch.randomizedtesting.annotations.ParametersFactory;
 import com.carrotsearch.randomizedtesting.annotations.TimeoutSuite;
+
+import org.apache.lucene.util.LuceneTestCase;
 import org.apache.lucene.util.TimeUnits;
 import org.elasticsearch.Version;
 import org.elasticsearch.client.Response;
@@ -32,6 +34,7 @@
 import static org.hamcrest.Matchers.is;
 
 @TimeoutSuite(millis = 5 * TimeUnits.MINUTE) // to account for slow as hell VMs
+@LuceneTestCase.AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/30456")
 public class UpgradeClusterClientYamlTestSuiteIT extends ESClientYamlSuiteTestCase {
 
     /**