Changed the access level of AbstractAggregateRoot's methods to public

src/main/java/org/springframework/data/domain/AbstractAggregateRoot.java

@@ -31,6 +31,7 @@
  *
  * @author Oliver Gierke
  * @author Christoph Strobl
+ * @author Mikhail Polivakha
  * @since 1.13
  */
 public class AbstractAggregateRoot<A extends AbstractAggregateRoot<A>> {
@@ -44,7 +45,7 @@ public class AbstractAggregateRoot<A extends AbstractAggregateRoot<A>> {
 	 * @return the event that has been added.
 	 * @see #andEvent(Object)
 	 */
-	protected <T> T registerEvent(T event) {
+	public <T> T registerEvent(T event) {
 
 		Assert.notNull(event, "Domain event must not be null");
 
@@ -76,7 +77,7 @@ protected Collection<Object> domainEvents() {
 	 * @return the aggregate
 	 */
 	@SuppressWarnings("unchecked")
-	protected final A andEventsFrom(A aggregate) {
+	public final A andEventsFrom(A aggregate) {
 
 		Assert.notNull(aggregate, "Aggregate must not be null");
 
@@ -95,7 +96,7 @@ protected final A andEventsFrom(A aggregate) {
 	 * @see #registerEvent(Object)
 	 */
 	@SuppressWarnings("unchecked")
-	protected final A andEvent(Object event) {
+	public final A andEvent(Object event) {
 
 		registerEvent(event);
 

src/main/java/org/springframework/data/repository/core/support/EventPublishingRepositoryProxyPostProcessor.java

@@ -138,26 +138,28 @@ private static boolean isDeleteMethod(String methodName) {
 	 * Abstraction of a method on the aggregate root that exposes the events to publish.
 	 *
 	 * @author Oliver Gierke
+	 * @author Mikhail Polivakha
 	 * @since 1.13
 	 */
 	static class EventPublishingMethod {
 
 		private static Map<Class<?>, EventPublishingMethod> cache = new ConcurrentReferenceHashMap<>();
 		private static @SuppressWarnings("null") EventPublishingMethod NONE = new EventPublishingMethod(Object.class, null,
 				null);
-		private static String ILLEGAL_MODIFCATION = "Aggregate's events were modified during event publication. "
-				+ "Make sure event listeners obtain a fresh instance of the aggregate before adding further events. "
-				+ "Additional events found: %s.";
+		private static final String ILLEGAL_MODIFICATION = "Events of an aggregate '%s' were modified during event publication. "
+				+ "Make sure event listeners obtain a fresh instance of the aggregate before adding further events. ";
 
 		private final Class<?> type;
 		private final Method publishingMethod;
 		private final @Nullable Method clearingMethod;
+		private final IllegalStateException ILLEGAL_MODIFICATION_EXCEPTION;
 
 		EventPublishingMethod(Class<?> type, Method publishingMethod, @Nullable Method clearingMethod) {
 
 			this.type = type;
 			this.publishingMethod = publishingMethod;
 			this.clearingMethod = clearingMethod;
+			this.ILLEGAL_MODIFICATION_EXCEPTION = new IllegalStateException(ILLEGAL_MODIFICATION.formatted(type.getName()));
 		}
 
 		/**
@@ -216,7 +218,7 @@ public void publishEventsFrom(@Nullable Iterable<?> aggregates, ApplicationEvent
 
 					postPublication.removeAll(events);
 
-					throw new IllegalStateException(ILLEGAL_MODIFCATION.formatted(postPublication));
+					throw ILLEGAL_MODIFICATION_EXCEPTION;
 				}
 
 				if (clearingMethod != null) {

src/main/java/org/springframework/data/repository/query/SpelQueryContext.java

@@ -285,7 +285,6 @@ public int size() {
 		Map<String, String> getParameterMap() {
 			return expressions;
 		}
-
 	}
 
 	/**

src/main/java/org/springframework/data/spel/ExpressionDependencies.java

@@ -102,7 +102,7 @@ public static ExpressionDependencies merged(Iterable<ExpressionDependencies> dep
 	 * @return a set of {@link ExpressionDependencies}.
 	 */
 	public static ExpressionDependencies discover(Expression expression) {
-		return expression instanceof SpelExpression ? discover(((SpelExpression) expression).getAST(), true) : none();
+		return expression instanceof SpelExpression spel ? discover(spel.getAST(), true) : none();
 	}
 
 	/**