AspectJ：VerifyError [英] AspectJ: VerifyError

问题描述

我正在尝试面向方面的编程。我已经在Eclipse中安装了 AspectJ-Plugin ，并遵循了这个教程。

创建的方面之间的所有连接都可以工作，但是当我尝试运行该项目，我收到以下异常：

 线程main中的HelloException java.lang.VerifyError：期望堆栈框架在分支目标6在方法helloworld.World。< clinit>（）V在偏移0 
在helloworld.Hello.sayHello（Hello.java:11）​​
在helloworld.Hello.main（你好.java：6）
  

当我清空World.aj 类时，运行项目，一切正常，我在控制台中收到预期的Hello。




这是我在本教程中创建的类： p>

Hello.java

  package helloworld; 
 
 public class Hello {
 
 public static void main（String [] args）{
 sayHello（）; 
} 
 
 public static void sayHello（）{
 System.out.print（Hello）; 
} 
} 
  

World.aj / p>

  package helloworld; 
 
 public aspect World {
 
切入点（）：执行（* Hello.sayHello（..））; 
 
 after（）returns（）：greeting（）{
 System.out.println（World！）; 
} 
 
} 
  

解决方案

我也按照教程，遇到同样的错误。这是我如何解决它。

我发现，默认情况下，我的eclipse（JavaSE-1.7）选择的执行环境JRE与AspectJ有问题。所以你需要做的是改变执行环境JRE，选择例如JavaSE-1.6。

之后，你可以按照教程，并获得所需的输出！ ：）

希望这有帮助！

I'm experimenting with Aspect-Oriented Programming. I've installed the AspectJ-Plugin in Eclipse and followed all the steps mentioned in this tutorial.
All connections between the created aspects work, but when I try to run the project, I receive the following exception:

HelloException in thread "main" java.lang.VerifyError: Expecting a stackmap frame at branch target 6 in method helloworld.World.<clinit>()V at offset 0
at helloworld.Hello.sayHello(Hello.java:11)
at helloworld.Hello.main(Hello.java:6)

When I empty the class World.aj and run the project, everything works and I receive the expected "Hello" in the console.


Here are the classes I created during the tutorial:

Hello.java

package helloworld;

public class Hello {

    public static void main(String[] args) {
          sayHello();
     } 

    public static void sayHello() {
          System.out.print("Hello");
     }
}

World.aj

package helloworld;

public aspect World { 

    pointcut greeting() : execution(* Hello.sayHello(..)); 

    after() returning() : greeting() { 
        System.out.println(" World!"); 
    } 

}

解决方案

I also followed the tutorial, and encountered the same error. And here is how I solved it.

I found out that that the execution environment JRE selected by default with my eclipse, JavaSE-1.7, had an issue with AspectJ. So what you have to do, is change the execution environment JRE, choose for example JavaSE-1.6.

After, you can follow the tutorial, and obtain the desired output! :)

Hope this helps!

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