TransactionAttributeSourcePointcut pointcut skips target classes with TransactionalProxy marker (e.g. Spring Data proxies)

This 4.2 commit also makes TransactionProxyFactoryBean expose the TransactionalProxy marker and refines SpringProxy marker handling.

Issue: SPR-13109

spring-aop/src/main/java/org/springframework/aop/framework/AbstractSingletonProxyFactoryBean.java

@@ -173,6 +173,8 @@ public abstract class AbstractSingletonProxyFactoryBean extends ProxyConfig
 					ClassUtils.getAllInterfacesForClass(targetSource.getTargetClass(), this.proxyClassLoader));
 		}
 
+		postProcessProxyFactory(proxyFactory);
+
 		this.proxy = proxyFactory.getProxy(this.proxyClassLoader);
 	}
 
@@ -191,6 +193,15 @@ public abstract class AbstractSingletonProxyFactoryBean extends ProxyConfig
 		}
 	}
 
+	/**
+	 * A hook for subclasses to post-process the {@link ProxyFactory}
+	 * before creating the proxy instance with it.
+	 * @param proxyFactory the AOP ProxyFactory about to be used
+	 * @since 4.2
+	 */
+	protected void postProcessProxyFactory(ProxyFactory proxyFactory) {
+	}
+
 
 	@Override
 	public Object getObject() {

spring-aop/src/main/java/org/springframework/aop/framework/DefaultAopProxyFactory.java

@@ -70,8 +70,8 @@ public class DefaultAopProxyFactory implements AopProxyFactory, Serializable {
 	 * (or no proxy interfaces specified at all).
 	 */
 	private boolean hasNoUserSuppliedProxyInterfaces(AdvisedSupport config) {
-		Class<?>[] interfaces = config.getProxiedInterfaces();
-		return (interfaces.length == 0 || (interfaces.length == 1 && SpringProxy.class == interfaces[0]));
+		Class<?>[] ifcs = config.getProxiedInterfaces();
+		return (ifcs.length == 0 || (ifcs.length == 1 && SpringProxy.class.isAssignableFrom(ifcs[0])));
 	}
 
 }