aspectj-autoproxy does not work with aspectj compiler

[DebugMeNot]

Hello,

I use an aspect that was compiled by aspect-j compiler
however I want to use aspectj-autoproxy in same project
I noticed is that when aspect is compiled with aspectj compiler the aspectj-autoproxy stops working.

Here is the code:

/* Foo.java */Divorce Attorney Denver CO
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public interface Foo {
	void foo();home security services
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}

/* FooImpl.java */
public class FooImpl implements Foo {
	public void foo() {
	}
}


/* FooAspect.java */
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
@Aspect
public class FooAspect {
	@Around("execution(void *.foo())")
	public Object throwException(ProceedingJoinPoint pjp) {
		throw new RuntimeException();
	}
}

/** FooTest.java */
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "/application-context.xml")
public class FooTest {
	@Autowired
	Foo foo;
	@Test
	public void undeclaredCheckedExceotionIsThrown() {
		try {
			foo.foo();
			Assert.fail();
		} catch (RuntimeException e) {
			//that's what we expect to happen
		}
	}
}
/* application-context.xml */
<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schem...-beans-2.0.xsd
           http://www.springframework.org/schema/aop http://www.springframework.org/schem...ng-aop-2.0.xsd
           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd">

	<aop:aspectj-autoproxy />

	<bean id="foo" class="FooImpl" />

	<bean id="fooAspect" class="FooAspect"  />
	
</beans>

Why aspectj-autoproxy doesn't work when aspect was compiled with aspectj and how to fix it?

Maven project with code attached.

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[Marten Deinum]

If you use the AspectJ compiler to create/compile an Aspect (and not use compile time weaving to already apply it) you will have to use the aspectOf factory method on your aspect to declare it an aspect. Why not simply use the normal class compiler (it still is a simple class).

[DebugMeNot]

If you use the AspectJ compiler to create/compile an Aspect (and not use compile time weaving to already apply it) you will have to use the aspectOf factory method on your aspect to declare it an aspect. Why not simply use the normal class compiler (it still is a simple class).

I tried to use

<bean id="fooAspect" class="FooAspect" factory-method="aspectOf"  />

but no luck.
Springs doesn't apply the aspect.

BTW, why should I use aspectOf in this case?

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[Marten Deinum]

Because now it is an aspect not a simple class... Just one question why the need for the AspectJ compiler? Do you want to use compile time weaving? If not again the question why add this extra dependency and complexity to your build!!!

[DebugMeNot]

Because now it is an aspect not a simple class... Just one question why the need for the AspectJ compiler? Do you want to use compile time weaving? If not again the question why add this extra dependency and complexity to your build!!!

I'm developing an aspect library.
I want to make sure that aspect works for AspectJ as well as for Spring AOP.
I want to do it in one build ( i use maven for that).

The problem is that when AspectJ compiles an aspect Spring AOP stops using it and I do not understand why.
Is that so bad that a class was compiled with aspectj compiler?

[denis.zhdanov]

I found your problem rather interesting and investigated it a little. The results are available here.

[DebugMeNot]

Thank you very much for your research.
In simple words spring can not work with such aspects.
I wonder what a person that writes an library of aspects for common usage is suppose to do?
Let's hope not to create an aspect for each framework. ;-)

You mentioned some workaround, can you please share your ideas?

Thanks In Advance

[denis.zhdanov]

Thank you very much for your research.
In simple words spring can not work with such aspects.
I wonder what a person that writes an library of aspects for common usage is suppose to do?
Let's hope not to create an aspect for each framework. ;-)

You mentioned some workaround, can you please share your ideas?

Thanks In Advance

Welcome

First of all, I don't quite understand what are you trying to achieve
I.e. I see the approach you use to do something (compile @AspectJ-configured class by aspectj compiler and use that class as an aspect at spring aop) but target aim of that activity is not clear.

About workarounds - you can use aspectj weaving and don't use spring aop at all for example.

[DebugMeNot]

First of all, I don't quite understand what are you trying to achieve

I'm writing an aspect library that people will be able to use with AspectJ and Spring AOP.
I want to create one aspect which will be possible to use with both frameworks.

PS It seems I'll have to create an aspect for each of AOP frameworks.

[denis.zhdanov]

I'm writing an aspect library that people will be able to use with AspectJ and Spring AOP.
I want to create one aspect which will be possible to use with both frameworks.

PS It seems I'll have to create an aspect for each of AOP frameworks.

Indeed. We just found out that it's not possible to reuse aspectj aspect with spring aop.