Fix IT class

Signed-off-by: Xue Zhou <[email protected]>

Author: xuezhou25

client/rest-high-level/src/test/java/org/opensearch/client/ClusterClientIT.java

@@ -159,10 +159,10 @@ public void testClusterUpdateSettingNonExistent() {
                 highLevelClient().cluster()::putSettingsAsync
             )
         );
-        assertThat(exception.status(), equalTo(RestStatus.BAD_REQUEST));
+        assertThat(exception.status(), equalTo(RestStatus.INTERNAL_SERVER_ERROR));
         assertThat(
             exception.getMessage(),
-            equalTo("OpenSearch exception [type=illegal_argument_exception, reason=transient setting [" + setting + "], not recognized]")
+            equalTo("OpenSearch exception [type=invalid_argument_exception, reason=transient setting [" + setting + "], not recognized]")
         );
     }
 

client/rest-high-level/src/test/java/org/opensearch/client/IndicesClientIT.java

@@ -1437,7 +1437,7 @@ public void testIndexPutSettings() throws IOException {
         assertThat(
             exception.getMessage(),
             startsWith(
-                "OpenSearch exception [type=illegal_argument_exception, "
+                "OpenSearch exception [type=invalid_argument_exception, "
                     + "reason=final index setting [index.number_of_shards], not updateable"
             )
         );
@@ -1471,7 +1471,7 @@ public void testIndexPutSettingNonExistent() throws IOException {
                 highLevelClient().indices()::putSettingsAsync
             )
         );
-        assertThat(exception.status(), equalTo(RestStatus.BAD_REQUEST));
+        assertThat(exception.status(), equalTo(RestStatus.INTERNAL_SERVER_ERROR));
         assertThat(
             exception.getMessage(),
             equalTo(