fix tests

Author: Evgenii-Kazannik

x-pack/plugin/inference/src/test/java/org/elasticsearch/xpack/inference/services/huggingface/action/HuggingFaceActionCreatorTests.java

@@ -358,11 +358,14 @@ public void testSend_FailsFromInvalidResponseFormat_ForRerankAction() throws IOE
 
     private void assertRerankActionCreator(List<String> documents, String query, int topN, boolean returnText) throws IOException {
         assertThat(webServer.requests(), hasSize(1));
-        assertNull(webServer.requests().getFirst().getUri().getQuery());
-        assertThat(webServer.requests().getFirst().getHeader(HttpHeaders.CONTENT_TYPE), equalTo(XContentType.JSON.mediaType()));
-        assertThat(webServer.requests().getFirst().getHeader(HttpHeaders.AUTHORIZATION), equalTo("Bearer secret"));
+        assertNull(webServer.requests().get(0).getUri().getQuery());
+        assertThat(
+            webServer.requests().get(0).getHeader(HttpHeaders.CONTENT_TYPE),
+            equalTo(XContentType.JSON.mediaTypeWithoutParameters())
+        );
+        assertThat(webServer.requests().get(0).getHeader(HttpHeaders.AUTHORIZATION), equalTo("Bearer secret"));
 
-        var requestMap = entityAsMap(webServer.requests().getFirst().getBody());
+        var requestMap = entityAsMap(webServer.requests().get(0).getBody());
         assertThat(requestMap.size(), is(4));
         assertThat(requestMap.get("texts"), is(documents));
         assertThat(requestMap.get("query"), is(query));

x-pack/plugin/inference/src/test/java/org/elasticsearch/xpack/inference/services/huggingface/request/rerank/HuggingFaceRerankRequestTests.java

@@ -51,7 +51,7 @@ private void testCreateRequest(Integer topN, Boolean returnDocuments) throws IOE
         assertThat(httpRequest.httpRequestBase(), instanceOf(HttpPost.class));
         var httpPost = (HttpPost) httpRequest.httpRequestBase();
 
-        assertThat(httpPost.getLastHeader(HttpHeaders.CONTENT_TYPE).getValue(), is(XContentType.JSON.mediaType()));
+        assertThat(httpPost.getLastHeader(HttpHeaders.CONTENT_TYPE).getValue(), is(XContentType.JSON.mediaTypeWithoutParameters()));
         assertThat(httpPost.getLastHeader(HttpHeaders.AUTHORIZATION).getValue(), is(AUTH_HEADER_VALUE));
 
         var requestMap = entityAsMap(httpPost.getEntity().getContent());

x-pack/plugin/inference/src/test/java/org/elasticsearch/xpack/inference/services/huggingface/response/HuggingFaceRerankResponseEntityTests.java

@@ -95,6 +95,6 @@ private void assertMissingFieldThrowsIllegalArgumentException(String responseJso
                 new HttpResult(mock(HttpResponse.class), responseJson.getBytes(StandardCharsets.UTF_8))
             )
         );
-        assertThat(thrownException.getMessage(), is("Required [%s]".formatted(missingField)));
+        assertThat(thrownException.getMessage(), is("Required [" + missingField + "]"));
     }
 }