Add missing @⁠Override annotations

... and suppress "serial" warnings

Author: sbrannen

spring-expression/src/main/java/org/springframework/expression/ExpressionException.java

@@ -117,10 +117,11 @@ public final int getPosition() {
 
 	/**
 	 * Return the exception message.
-	 * As of Spring 4.0, this method returns the same result as {@link #toDetailedString()}.
+	 * <p>This method returns the same result as {@link #toDetailedString()}.
 	 * @see #getSimpleMessage()
 	 * @see java.lang.Throwable#getMessage()
 	 */
+	@Override
 	public String getMessage() {
 		return toDetailedString();
 	}

spring-jms/src/main/java/org/springframework/jms/core/DefaultJmsClient.java

@@ -70,10 +70,12 @@ void setMessagePostProcessor(MessagePostProcessor messagePostProcessor) {
 	}
 
 
+	@Override
 	public OperationSpec destination(Destination destination) {
 		return new DefaultOperationSpec(destination);
 	}
 
+	@Override
 	public OperationSpec destination(String destinationName) {
 		return new DefaultOperationSpec(destinationName);
 	}

spring-messaging/src/test/java/org/springframework/messaging/core/MessageSendingTemplateTests.java

@@ -50,6 +50,7 @@ class MessageSendingTemplateTests {
 
 	private final TestMessagePostProcessor postProcessor = new TestMessagePostProcessor();
 
+	@SuppressWarnings("serial")
 	private final Map<String, Object> headers = new HashMap<>() {{
 		put("key", "value");
 	}};

spring-orm/src/main/java/org/springframework/orm/jpa/hibernate/LocalSessionFactoryBuilder.java

@@ -284,6 +284,7 @@ public LocalSessionFactoryBuilder setEntityTypeFilters(TypeFilter... entityTypeF
 	 * @see #addPackage
 	 * @see #scanPackages
 	 */
+	@Override
 	public LocalSessionFactoryBuilder addPackages(String... annotatedPackages) {
 		for (String annotatedPackage : annotatedPackages) {
 			addPackage(annotatedPackage);

spring-test/src/main/java/org/springframework/mock/web/MockHttpServletResponse.java

@@ -642,7 +642,7 @@ public void sendRedirect(String url) throws IOException {
 		sendRedirect(url, HttpServletResponse.SC_MOVED_TEMPORARILY, true);
 	}
 
-	// @Override - on Servlet 6.1
+	@Override
 	public void sendRedirect(String url, int sc, boolean clearBuffer) throws IOException {
 		Assert.state(!isCommitted(), "Cannot send redirect - response is already committed");
 		Assert.notNull(url, "Redirect URL must not be null");

spring-test/src/main/java/org/springframework/test/web/servlet/client/DefaultRestTestClientBuilder.java

@@ -173,6 +173,7 @@ public AbstractMockMvcSetupBuilder(M mockMvcBuilder) {
 			this.mockMvcBuilder = mockMvcBuilder;
 		}
 
+		@Override
 		public <T extends S> T configureServer(Consumer<M> consumer) {
 			consumer.accept(this.mockMvcBuilder);
 			return self();

spring-test/src/test/java/org/springframework/test/web/servlet/client/samples/bind/FilterTests.java

@@ -41,6 +41,7 @@ class FilterTests {
 	@Test
 	void filter() {
 
+		@SuppressWarnings("serial")
 		Filter filter = new HttpFilter() {
 			@Override
 			protected void doFilter(HttpServletRequest req, HttpServletResponse res, FilterChain chain) throws IOException {

spring-tx/src/test/java/org/springframework/transaction/interceptor/AbstractTransactionAspectTests.java

@@ -370,6 +370,7 @@ void noRollbackOnUncheckedExceptionWithRollbackException() throws Throwable {
 	protected void doTestRollbackOnException(
 			final Exception ex, final boolean shouldRollback, boolean rollbackException) throws Exception {
 
+		@SuppressWarnings("serial")
 		TransactionAttribute txatt = new DefaultTransactionAttribute() {
 			@Override
 			public boolean rollbackOn(Throwable t) {

spring-web/src/main/java/org/springframework/http/client/reactive/JdkResponseCookieParser.java

@@ -23,7 +23,6 @@
 
 import org.springframework.http.ResponseCookie;
 
-
 /**
  * Parser that delegates to {@link java.net.HttpCookie#parse(String)} for parsing,
  * but also extracts and sets {@code sameSite}.
@@ -39,6 +38,7 @@ final class JdkResponseCookieParser implements ResponseCookie.Parser {
 	/**
 	 * Parse the given headers.
 	 */
+	@Override
 	public List<ResponseCookie> parse(String header) {
 		Matcher matcher = SAME_SITE_PATTERN.matcher(header);
 		String sameSite = (matcher.matches() ? matcher.group(1) : null);

spring-web/src/main/java/org/springframework/web/accept/DefaultApiVersionStrategy.java

@@ -163,6 +163,7 @@ public Comparable<?> parseVersion(String version) {
 		return this.versionParser.parseVersion(version);
 	}
 
+	@Override
 	public void validateVersion(@Nullable Comparable<?> requestVersion, HttpServletRequest request)
 			throws MissingApiVersionException, InvalidApiVersionException {