My question: is it possible to change method signature in AspectJ? 
For example, given class:

```
Class Foo {

     @Test
     public void shouldReturnOne(){} 
}

```

Change into:

```
Class Foo {

     @Test
     public void test_shouldReturnOne(){} 
}

```

I cannot find any information if it is possible. And if yes, how to do that?
Thanks in advance.