Remove suppresions for "unchecked" for hamcrest varargs methods Backport(41528) #42749

In hamcrest 2.1 warnings for unchecked varargs were fixed by hamcrest using @SafeVarargs for those matchers where this warning occurred.
This PR is aimed to remove these annotations when Matchers.contains ,Matchers.containsInAnyOrder or Matchers.hasItems was used
backport #41528

client/rest-high-level/src/test/java/org/elasticsearch/client/BulkProcessorIT.java

@@ -291,7 +291,6 @@ public class BulkProcessorIT extends ESRestHighLevelClientTestCase {
         assertMultiGetResponse(highLevelClient().mget(multiGetRequest, RequestOptions.DEFAULT), testDocs);
     }
 
-    @SuppressWarnings("unchecked")
     public void testGlobalParametersAndSingleRequest() throws Exception {
         createIndexWithMultipleShards("test");
 
@@ -326,7 +325,6 @@ public class BulkProcessorIT extends ESRestHighLevelClientTestCase {
         assertThat(blogs, everyItem(hasProperty(fieldFromSource("fieldNameXYZ"), equalTo("valueXYZ"))));
     }
 
-    @SuppressWarnings("unchecked")
     public void testGlobalParametersAndBulkProcessor() throws Exception {
         createIndexWithMultipleShards("test");
 

client/rest-high-level/src/test/java/org/elasticsearch/client/BulkRequestWithGlobalParametersIT.java

@@ -44,7 +44,6 @@ import static org.hamcrest.Matchers.nullValue;
 
 public class BulkRequestWithGlobalParametersIT extends ESRestHighLevelClientTestCase {
 
-    @SuppressWarnings("unchecked")
     public void testGlobalPipelineOnBulkRequest() throws IOException {
         createFieldAddingPipleine("xyz", "fieldNameXYZ", "valueXYZ");
 
@@ -83,7 +82,6 @@ public class BulkRequestWithGlobalParametersIT extends ESRestHighLevelClientTest
         assertThat(hits, everyItem(hasProperty(fieldFromSource("fieldXYZ"), nullValue())));
     }
 
-    @SuppressWarnings("unchecked")
     public void testMixPipelineOnRequestAndGlobal() throws IOException {
         createFieldAddingPipleine("globalId", "fieldXYZ", "valueXYZ");
         createFieldAddingPipleine("perIndexId", "someNewField", "someValue");
@@ -153,7 +151,6 @@ public class BulkRequestWithGlobalParametersIT extends ESRestHighLevelClientTest
         assertThat(hits, everyItem(hasType("global_type")));
     }
 
-    @SuppressWarnings("unchecked")
     public void testTypeGlobalAndPerRequest() throws IOException {
         BulkRequest request = new BulkRequest(null, "global_type");
         request.add(new IndexRequest("index1", "local_type", "1")
@@ -171,7 +168,6 @@ public class BulkRequestWithGlobalParametersIT extends ESRestHighLevelClientTest
                 .and(hasType("global_type"))));
     }
 
-    @SuppressWarnings("unchecked")
     public void testGlobalRouting() throws IOException {
         createIndexWithMultipleShards("index");
         BulkRequest request = new BulkRequest(null);
@@ -189,7 +185,6 @@ public class BulkRequestWithGlobalParametersIT extends ESRestHighLevelClientTest
         assertThat(hits, containsInAnyOrder(hasId("1"), hasId("2")));
     }
 
-    @SuppressWarnings("unchecked")
     public void testMixLocalAndGlobalRouting() throws IOException {
         BulkRequest request = new BulkRequest(null);
         request.routing("globalRouting");

qa/logging-config/src/test/java/org/elasticsearch/common/logging/JsonLoggerTests.java

@@ -67,7 +67,6 @@ public class JsonLoggerTests extends ESTestCase {
         super.tearDown();
     }
 
-    @SuppressWarnings("unchecked")
     public void testJsonLayout() throws IOException {
         final Logger testLogger = LogManager.getLogger("test");
 
@@ -90,7 +89,6 @@ public class JsonLoggerTests extends ESTestCase {
         }
     }
 
-    @SuppressWarnings("unchecked")
     public void testPrefixLoggerInJson() throws IOException {
         Logger shardIdLogger = Loggers.getLogger("shardIdLogger", ShardId.fromString("[indexName][123]"));
         shardIdLogger.info("This is an info message with a shardId");

x-pack/qa/full-cluster-restart/src/test/java/org/elasticsearch/xpack/restart/FullClusterRestartIT.java

@@ -442,7 +442,6 @@ public class FullClusterRestartIT extends AbstractFullClusterRestartTestCase {
         return StreamsUtils.copyToStringFromClasspath("/org/elasticsearch/xpack/restart/" + watch);
     }
 
-    @SuppressWarnings("unchecked")
     private void assertOldTemplatesAreDeleted() throws IOException {
         Map<String, Object> templates = entityAsMap(client().performRequest(new Request("GET", "/_template")));
         assertThat(templates.keySet(), not(hasItems(is("watches"), startsWith("watch-history"), is("triggered_watches"))));

x-pack/qa/openldap-tests/src/test/java/org/elasticsearch/xpack/security/authc/ldap/SearchGroupsResolverTests.java

@@ -23,7 +23,6 @@ import static org.hamcrest.Matchers.hasItem;
 import static org.hamcrest.Matchers.is;
 import static org.hamcrest.Matchers.notNullValue;
 
-@SuppressWarnings("unchecked")
 public class SearchGroupsResolverTests extends GroupsResolverTestCase {
 
     private static final String BRUCE_BANNER_DN = "uid=hulk,ou=people,dc=oldap,dc=test,dc=elasticsearch,dc=com";

x-pack/qa/third-party/active-directory/src/test/java/org/elasticsearch/xpack/security/authc/ldap/ActiveDirectoryGroupsResolverTests.java

@@ -35,7 +35,6 @@ public class ActiveDirectoryGroupsResolverTests extends GroupsResolverTestCase {
     }
 
     @AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/35738")
-    @SuppressWarnings("unchecked")
     public void testResolveSubTree() throws Exception {
         Settings settings = Settings.builder()
                 .put("xpack.security.authc.realms.active_directory.ad.group_search.scope", LdapSearchScope.SUB_TREE)

x-pack/qa/third-party/active-directory/src/test/java/org/elasticsearch/xpack/security/authc/ldap/ActiveDirectorySessionFactoryTests.java

@@ -66,7 +66,6 @@ public class ActiveDirectorySessionFactoryTests extends AbstractActiveDirectoryT
         return false;
     }
 
-    @SuppressWarnings("unchecked")
     public void testAdAuth() throws Exception {
         RealmConfig config = configureRealm("ad-test", buildAdSettings(AD_LDAP_URL, AD_DOMAIN, false));
         try (ActiveDirectorySessionFactory sessionFactory = getActiveDirectorySessionFactory(config, sslService, threadPool)) {
@@ -101,7 +100,6 @@ public class ActiveDirectorySessionFactoryTests extends AbstractActiveDirectoryT
         return new RealmConfig(identifier, mergedSettings, env, new ThreadContext(globalSettings));
     }
 
-    @SuppressWarnings("unchecked")
     public void testNetbiosAuth() throws Exception {
         final String adUrl = randomFrom(AD_LDAP_URL, AD_LDAP_GC_URL);
         RealmConfig config = configureRealm("ad-test", buildAdSettings(adUrl, AD_DOMAIN, false));
@@ -139,7 +137,6 @@ public class ActiveDirectorySessionFactoryTests extends AbstractActiveDirectoryT
         }
     }
 
-    @SuppressWarnings("unchecked")
     public void testAuthenticate() throws Exception {
         Settings settings = buildAdSettings(REALM_ID, AD_LDAP_URL, AD_DOMAIN, "CN=Users,DC=ad,DC=test,DC=elasticsearch,DC=com",
                 LdapSearchScope.ONE_LEVEL, false);
@@ -163,7 +160,6 @@ public class ActiveDirectorySessionFactoryTests extends AbstractActiveDirectoryT
         }
     }
 
-    @SuppressWarnings("unchecked")
     public void testAuthenticateBaseUserSearch() throws Exception {
         Settings settings = buildAdSettings(REALM_ID, AD_LDAP_URL, AD_DOMAIN,
                 "CN=Bruce Banner, CN=Users,DC=ad,DC=test,DC=elasticsearch,DC=com", LdapSearchScope.BASE, false);
@@ -208,7 +204,6 @@ public class ActiveDirectorySessionFactoryTests extends AbstractActiveDirectoryT
         }
     }
 
-    @SuppressWarnings("unchecked")
     public void testAuthenticateWithUserPrincipalName() throws Exception {
         Settings settings = buildAdSettings(REALM_ID, AD_LDAP_URL, AD_DOMAIN, "CN=Users,DC=ad,DC=test,DC=elasticsearch,DC=com",
                 LdapSearchScope.ONE_LEVEL, false);
@@ -229,7 +224,6 @@ public class ActiveDirectorySessionFactoryTests extends AbstractActiveDirectoryT
         }
     }
 
-    @SuppressWarnings("unchecked")
     public void testAuthenticateWithSAMAccountName() throws Exception {
         Settings settings = buildAdSettings(REALM_ID, AD_LDAP_URL, AD_DOMAIN, "CN=Users,DC=ad,DC=test,DC=elasticsearch,DC=com",
                 LdapSearchScope.ONE_LEVEL, false);
@@ -251,7 +245,6 @@ public class ActiveDirectorySessionFactoryTests extends AbstractActiveDirectoryT
         }
     }
 
-    @SuppressWarnings("unchecked")
     public void testCustomUserFilter() throws Exception {
         Settings settings = Settings.builder()
                 .put(buildAdSettings(REALM_ID, AD_LDAP_URL, AD_DOMAIN, "CN=Users,DC=ad,DC=test,DC=elasticsearch,DC=com",
@@ -275,7 +268,6 @@ public class ActiveDirectorySessionFactoryTests extends AbstractActiveDirectoryT
     }
 
 
-    @SuppressWarnings("unchecked")
     public void testStandardLdapConnection() throws Exception {
         String groupSearchBase = "DC=ad,DC=test,DC=elasticsearch,DC=com";
         String userTemplate = "CN={0},CN=Users,DC=ad,DC=test,DC=elasticsearch,DC=com";
@@ -341,7 +333,6 @@ public class ActiveDirectorySessionFactoryTests extends AbstractActiveDirectoryT
         }
     }
 
-    @SuppressWarnings("unchecked")
     public void testStandardLdapWithAttributeGroups() throws Exception {
         String userTemplate = "CN={0},CN=Users,DC=ad,DC=test,DC=elasticsearch,DC=com";
         Settings settings = LdapTestCase.buildLdapSettings(new String[]{AD_LDAP_URL}, userTemplate, false);

x-pack/qa/third-party/active-directory/src/test/java/org/elasticsearch/xpack/security/authc/ldap/UserAttributeGroupsResolverTests.java

@@ -29,7 +29,6 @@ public class UserAttributeGroupsResolverTests extends GroupsResolverTestCase {
     public static final String BRUCE_BANNER_DN = "cn=Bruce Banner,CN=Users,DC=ad,DC=test,DC=elasticsearch,DC=com";
     private static final RealmConfig.RealmIdentifier REALM_ID = new RealmConfig.RealmIdentifier("ldap", "realm1");
 
-    @SuppressWarnings("unchecked")
     public void testResolve() throws Exception {
         //falling back on the 'memberOf' attribute
         UserAttributeGroupsResolver resolver = new UserAttributeGroupsResolver(config(REALM_ID, Settings.EMPTY));
@@ -42,7 +41,6 @@ public class UserAttributeGroupsResolverTests extends GroupsResolverTestCase {
                 containsString("Philanthropists")));
     }
 
-    @SuppressWarnings("unchecked")
     public void testResolveFromPreloadedAttributes() throws Exception {
         SearchRequest preSearch = new SearchRequest(BRUCE_BANNER_DN, SearchScope.BASE, LdapUtils.OBJECT_CLASS_PRESENCE_FILTER, "memberOf");
         final Collection<Attribute> attributes = ldapConnection.searchForEntry(preSearch).getAttributes();
@@ -57,7 +55,6 @@ public class UserAttributeGroupsResolverTests extends GroupsResolverTestCase {
                 containsString("Philanthropists")));
     }
 
-    @SuppressWarnings("unchecked")
     public void testResolveCustomGroupAttribute() throws Exception {
         Settings settings = Settings.builder()
                 .put("user_group_attribute", "seeAlso")