Clean up warnings and remove unused code

integration-tests/src/test/java/org/springframework/aot/test/SampleReflection.java

@@ -20,14 +20,17 @@ import java.lang.reflect.Method;
 
 /**
  * @author Brian Clozel
+ * @since 6.0
  */
 public class SampleReflection {
 
+	@SuppressWarnings("unused")
 	public void sample() {
 		String value = "Sample";
 		Method[] methods = String.class.getMethods();
 	}
 
+	@SuppressWarnings("unused")
 	public void multipleCalls() {
 		String value = "Sample";
 		Method[] methods = String.class.getMethods();

spring-core-test/src/test/java/org/springframework/aot/agent/InstrumentedMethodTests.java

@@ -312,7 +312,6 @@ class InstrumentedMethodTests {
 
 		@Test
 		void classGetDeclaredMethodsShouldMatchIntrospectPublicMethodsHint() {
-			RecordedInvocation invocation = RecordedInvocation.of(InstrumentedMethod.CLASS_GETDECLAREDMETHODS).onInstance(String.class).build();
 			hints.reflection().registerType(String.class, typeHint -> typeHint.withMembers(MemberCategory.INTROSPECT_PUBLIC_METHODS));
 			assertThatInvocationDoesNotMatch(InstrumentedMethod.CLASS_GETDECLAREDMETHODS, this.stringGetScaleMethod);
 		}
@@ -634,12 +633,6 @@ class InstrumentedMethodTests {
 		assertThat(method.matcher(invocation)).rejects(this.hints);
 	}
 
-	private static class PrivateConstructor {
-
-		private PrivateConstructor() {
-
-		}
-	}
 
 	static class PublicField {
 

spring-web/src/main/java/org/springframework/web/util/pattern/PathPatternParser.java

@@ -128,6 +128,7 @@ public class PathPatternParser {
 	 */
 	public final static PathPatternParser defaultInstance = new PathPatternParser() {
 
+		@SuppressWarnings("deprecation")
 		@Override
 		public void setMatchOptionalTrailingSeparator(boolean matchOptionalTrailingSeparator) {
 			raiseError();

spring-web/src/test/java/org/springframework/web/bind/annotation/RequestMappingReflectiveProcessorTests.java

@@ -185,10 +185,11 @@ public class RequestMappingReflectiveProcessorTests {
 
 		@GetMapping
 		HttpEntity<Response> getHttpEntity() {
-			return new HttpEntity(new Response("response"));
+			return new HttpEntity<>(new Response("response"));
 		}
 
 		@GetMapping
+		@SuppressWarnings({ "rawtypes", "unchecked" })
 		HttpEntity getRawHttpEntity() {
 			return new HttpEntity(new Response("response"));
 		}
@@ -198,6 +199,7 @@ public class RequestMappingReflectiveProcessorTests {
 		}
 
 		@PostMapping
+		@SuppressWarnings({ "rawtypes", "unchecked" })
 		void postRawHttpEntity(HttpEntity  entity) {
 		}
 

spring-web/src/test/java/org/springframework/web/util/NestedServletExceptionTests.java

@@ -22,6 +22,7 @@ import org.springframework.core.NestedExceptionUtils;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
+@SuppressWarnings("deprecation")
 public class NestedServletExceptionTests {
 
 	@Test