SEC-1768: Added tests to reproduce "double-proxying" issue combining intercept-methods and tx-annotation-driven. Problem is caused by use of ProxyFactoryBean with auto-proxying.

config/src/test/resources/org/springframework/security/config/method-security.xml

@@ -3,11 +3,24 @@
 <b:beans xmlns="http://www.springframework.org/schema/security"
     xmlns:b="http://www.springframework.org/schema/beans"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xmlns:tx="http://www.springframework.org/schema/tx"
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
-http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd">
+        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
+        http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd">
+
+    <tx:annotation-driven />
+
+    <b:bean name="transactionManager" class="org.springframework.security.config.MockTransactionManager" />
 
     <b:bean class='org.springframework.beans.factory.config.PropertyPlaceholderConfigurer'/>
 
+    <b:bean id="transactionalTarget" class="org.springframework.security.config.TransactionalTestBusinessBean">
+        <intercept-methods>
+            <protect method="*" access="ROLE_USER" />
+        </intercept-methods>
+    </b:bean>
+
+
     <b:bean id="target" class="org.springframework.security.config.TestBusinessBeanImpl">
         <!-- This will add a security interceptor to the bean -->
         <intercept-methods>