Java Spring AOP with XML doesn't work -

i'm testing spring's aop xml features, can't make work.

edit: problem appears when method called constructor of class.

my applicationcontext.xml:

<beans xsi:schemalocation="http://www.springframework.org/schema/beans   http://www.springframework.org/schema/beans/spring-beans-3.1.xsd    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd   http://www.springframework.org/schema/tx    http://www.springframework.org/schema/tx/spring-tx-3.1.xsd">   <aop:aspectj-autoproxy/>   <bean id="aopclass" class="hu.viper.aoptest.aopclass"/>   <bean id="mainclass" class="hu.viper.aoptest.mainclass"/>   <aop:config>     <aop:aspect ref="aopclass">       <aop:pointcut id="pointcutbefore" expression="execution(* hu.viper.aoptest.mainclass.hello(..))"/>       <aop:before method="writeaop" pointcut-ref="pointcutbefore"/>     </aop:aspect>   </aop:config> </beans> 

my mainclass.java:

package hu.viper.aoptest;  public class mainclass {      public mainclass() {         this.hello();     }      public void hello() {         system.out.println("hello world");     } } 

my aopclass.java:

package hu.viper.aoptest;  import org.aspectj.lang.joinpoint;  public class aopclass {     public void writeaop(joinpoint joinpoint) {         system.out.println("this aop message!");     } } 

it builds perfectly, , when run it, prints "hello world" twice on glassfish output in netbeans (i don't know why twice), no aop message. problem code?

use proxy-target-class in <aop:config> force use of cglib proxies.

<aop:config proxy-target-class="true">     ....... </aop:config> 

in case using proxies mainclass in client, need refer proxy call hello() instead of this. refer this nicely written doc aop proxies understand aiming at.