ClassLoader不提供'addTransformer(ClassFileTransformer)'方法

问题描述

我正在使用Spring和AspectJ进行一些很好的编织，将<context:load-time-weaver/>插入到我的应用程序上下文中后，我就遇到了这个问题:

I'm using Spring and AspectJ to do some nice weaving and I just ran into this issue after inserting <context:load-time-weaver/> into my application context:

Caused by: java.lang.IllegalStateException: ClassLoader [sun.misc.Launcher$AppClassLoader] does NOT provide an 'addTransformer(ClassFileTransformer)' method. Specify a custom LoadTimeWeaver or start your Java virtual machine with Spring's agent: -javaagent:org.springframework.instrument.jar
    at org.springframework.context.weaving.DefaultContextLoadTimeWeaver.setBeanClassLoader(DefaultContextLoadTimeWeaver.java:83)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1419)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1391)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
    ... 21 common frames omitted

我需要自定义JVM来运行AspectJ吗?！?我不记得以前必须这样做.

Do I need a custom JVM to run AspectJ?!? I can't ever remember having to do this before.

推荐答案

我找不到任何文档来支持它，但是我相当确定标准JVM不支持Spring的加载时编织样式. 春季在不同环境中启用LTW的指南表示"通用Java应用程序部分.

I can't find any documentation to support it, but I'm fairly certain that the standard JVM doesn't support Spring's style of load-time weaving. Spring's guide to enabling LTW in different environments implies that this is the case in its "Generic Java applications" section.

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