Avoid Hamcrest 2.x deprecation warnings

See gh-23467

spring-test/src/test/java/org/springframework/test/web/client/samples/matchers/JsonPathRequestMatchersIntegrationTests.java

@@ -34,7 +34,8 @@ import static org.hamcrest.Matchers.containsString;
 import static org.hamcrest.Matchers.endsWith;
 import static org.hamcrest.Matchers.equalTo;
 import static org.hamcrest.Matchers.hasItem;
-import static org.hamcrest.Matchers.isIn;
+import static org.hamcrest.Matchers.in;
+import static org.hamcrest.Matchers.is;
 import static org.hamcrest.Matchers.startsWith;
 import static org.springframework.test.web.client.match.MockRestRequestMatchers.content;
 import static org.springframework.test.web.client.match.MockRestRequestMatchers.jsonPath;
@@ -115,7 +116,7 @@ public class JsonPathRequestMatchersIntegrationTests {
 			.andExpect(jsonPath("$.composers[0].name", startsWith("Johann")))
 			.andExpect(jsonPath("$.performers[0].name", endsWith("Ashkenazy")))
 			.andExpect(jsonPath("$.performers[1].name", containsString("di Me")))
-			.andExpect(jsonPath("$.composers[1].name", isIn(Arrays.asList("Johann Sebastian Bach", "Johannes Brahms"))))
+			.andExpect(jsonPath("$.composers[1].name", is(in(Arrays.asList("Johann Sebastian Bach", "Johannes Brahms")))))
 			.andExpect(jsonPath("$.composers[:3].name", hasItem("Johannes Brahms")))
 			.andRespond(withSuccess());
 
@@ -132,7 +133,7 @@ public class JsonPathRequestMatchersIntegrationTests {
 			.andExpect(jsonPath(composerName, 0).value(startsWith("Johann")))
 			.andExpect(jsonPath(performerName, 0).value(endsWith("Ashkenazy")))
 			.andExpect(jsonPath(performerName, 1).value(containsString("di Me")))
-			.andExpect(jsonPath(composerName, 1).value(isIn(Arrays.asList("Johann Sebastian Bach", "Johannes Brahms"))))
+			.andExpect(jsonPath(composerName, 1).value(is(in(Arrays.asList("Johann Sebastian Bach", "Johannes Brahms")))))
 			.andRespond(withSuccess());
 
 		executeAndVerify();

spring-test/src/test/java/org/springframework/test/web/servlet/samples/standalone/resultmatchers/JsonPathAssertionTests.java

@@ -32,7 +32,8 @@ import org.springframework.web.bind.annotation.RestController;
 import static org.hamcrest.Matchers.containsString;
 import static org.hamcrest.Matchers.endsWith;
 import static org.hamcrest.Matchers.equalTo;
-import static org.hamcrest.Matchers.isIn;
+import static org.hamcrest.Matchers.in;
+import static org.hamcrest.Matchers.is;
 import static org.hamcrest.Matchers.startsWith;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
@@ -106,7 +107,7 @@ public class JsonPathAssertionTests {
 			.andExpect(jsonPath("$.composers[0].name", startsWith("Johann")))
 			.andExpect(jsonPath("$.performers[0].name", endsWith("Ashkenazy")))
 			.andExpect(jsonPath("$.performers[1].name", containsString("di Me")))
-			.andExpect(jsonPath("$.composers[1].name", isIn(Arrays.asList("Johann Sebastian Bach", "Johannes Brahms"))));
+			.andExpect(jsonPath("$.composers[1].name", is(in(Arrays.asList("Johann Sebastian Bach", "Johannes Brahms")))));
 	}
 
 	@Test
@@ -118,7 +119,7 @@ public class JsonPathAssertionTests {
 			.andExpect(jsonPath(composerName, 0).value(startsWith("Johann")))
 			.andExpect(jsonPath(performerName, 0).value(endsWith("Ashkenazy")))
 			.andExpect(jsonPath(performerName, 1).value(containsString("di Me")))
-			.andExpect(jsonPath(composerName, 1).value(isIn(Arrays.asList("Johann Sebastian Bach", "Johannes Brahms"))));
+			.andExpect(jsonPath(composerName, 1).value(is(in(Arrays.asList("Johann Sebastian Bach", "Johannes Brahms")))));
 	}