Guard transaction proxy creation hints.

Closes: #4225
Related: #4221

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/aot/MongoAotPredicates.java

@@ -21,6 +21,8 @@ import org.springframework.data.mongodb.core.mapping.MongoSimpleTypes;
 import org.springframework.data.util.ReactiveWrappers;
 import org.springframework.data.util.ReactiveWrappers.ReactiveLibrary;
 import org.springframework.data.util.TypeUtils;
+import org.springframework.lang.Nullable;
+import org.springframework.util.ClassUtils;
 
 /**
  * @author Christoph Strobl
@@ -30,9 +32,14 @@ public class MongoAotPredicates {
 
 	public static final Predicate<Class<?>> IS_SIMPLE_TYPE = (type) ->  MongoSimpleTypes.HOLDER.isSimpleType(type) || TypeUtils.type(type).isPartOf("org.bson");
 	public static final Predicate<ReactiveLibrary> IS_REACTIVE_LIBARARY_AVAILABLE = (lib) -> ReactiveWrappers.isAvailable(lib);
+	public static final Predicate<ClassLoader> IS_SYNC_CLIENT_PRESENT = (classLoader) -> ClassUtils.isPresent("com.mongodb.client.MongoClient", classLoader);
 
 	public static boolean isReactorPresent() {
 		return IS_REACTIVE_LIBARARY_AVAILABLE.test(ReactiveWrappers.ReactiveLibrary.PROJECT_REACTOR);
 	}
 
+	public static boolean isSyncClientPresent(@Nullable ClassLoader classLoader) {
+		return IS_SYNC_CLIENT_PRESENT.test(classLoader);
+	}
+
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/aot/MongoRuntimeHints.java

@@ -52,15 +52,7 @@ class MongoRuntimeHints implements RuntimeHintsRegistrar {
 				builder -> builder.withMembers(MemberCategory.INVOKE_DECLARED_CONSTRUCTORS,
 						MemberCategory.INVOKE_PUBLIC_METHODS));
 
-		if (ClassUtils.isPresent("org.springframework.aop.SpringProxy", classLoader)) {
-
-			hints.proxies().registerJdkProxy(TypeReference.of(com.mongodb.client.MongoDatabase.class),
-					TypeReference.of("org.springframework.aop.SpringProxy"),
-					TypeReference.of("org.springframework.core.DecoratingProxy"));
-			hints.proxies().registerJdkProxy(TypeReference.of(com.mongodb.client.MongoCollection.class),
-					TypeReference.of("org.springframework.aop.SpringProxy"),
-					TypeReference.of("org.springframework.core.DecoratingProxy"));
-		}
+		registerTransactionProxyHints(hints, classLoader);
 
 		if (isReactorPresent()) {
 
@@ -73,4 +65,17 @@ class MongoRuntimeHints implements RuntimeHintsRegistrar {
 
 		}
 	}
+
+	private static void registerTransactionProxyHints(RuntimeHints hints, @Nullable ClassLoader classLoader) {
+
+		if (MongoAotPredicates.isSyncClientPresent(classLoader) && ClassUtils.isPresent("org.springframework.aop.SpringProxy", classLoader)) {
+
+			hints.proxies().registerJdkProxy(TypeReference.of("com.mongodb.client.MongoDatabase"),
+					TypeReference.of("org.springframework.aop.SpringProxy"),
+					TypeReference.of("org.springframework.core.DecoratingProxy"));
+			hints.proxies().registerJdkProxy(TypeReference.of("com.mongodb.client.MongoCollection"),
+					TypeReference.of("org.springframework.aop.SpringProxy"),
+					TypeReference.of("org.springframework.core.DecoratingProxy"));
+		}
+	}
 }