我们在App Engine上运行并使用Spring框架。最近我们添加了一些基于AOP的新功能。我们决定使用@AspectJ样式，因此我们将<aop:aspectj-autoproxy>添加到基于XML的配置中并实现了各自的方面。在开发服务器上一切正常，但是，当部署到云环境时，每次初始化应用程序时都会得到java.lang.StackOverflowError。
无法创建并导致错误的bean是使用@Configuration注释注释的配置类。看来基本上任何配置bean都可能导致错误。
下面你可以看到相应的堆栈跟踪。
org.springframework.web.context.ContextLoader initWebApplicationContext: Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'objectifyConfig' defined in URL [jar:file:/base/data/home/apps/{app-id}/8.372375422460842231/WEB-INF/lib/{app-name}-1.0-SNAPSHOT.jar!/{path-to-class}/ObjectifyConfig.class]: Initialization of bean failed; nested exception is java.lang.StackOverflowError
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:529)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:628)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:548)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:136)
at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.createHandler(AppVersionHandlerMap.java:219)
at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.getHandler(AppVersionHandlerMap.java:194)
at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:134)
at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:446)
at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:435)
at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:442)
at com.google.tracing.CurrentContext.runInContext(CurrentContext.java:186)
at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:306)
at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:298)
at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:439)
at com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:251)
at java.lang.Thread.run(Thread.java:724)
Caused by: java.lang.StackOverflowError
at java.util.concurrent.ConcurrentSkipListSet.contains(ConcurrentSkipListSet.java:214)
at sun.misc.URLClassPath$LoaderSearchCursor.nextLoader(URLClassPath.java:598)
at sun.misc.URLClassPath.getLoader(URLClassPath.java:365)
at sun.misc.URLClassPath.findResource(URLClassPath.java:213)
at java.net.URLClassLoader$2.run(URLClassLoader.java:551)
at java.net.URLClassLoader$2.run(URLClassLoader.java:549)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findResource(URLClassLoader.java:548)
at com.google.apphosting.runtime.security.UserClassLoader.findResource(UserClassLoader.java:723)
at java.lang.ClassLoader.getResource(ClassLoader.java:1142)
at com.google.apphosting.runtime.security.UserClassLoader$3.run(UserClassLoader.java:757)
at com.google.apphosting.runtime.security.UserClassLoader$3.run(UserClassLoader.java:751)
at java.security.AccessController.doPrivileged(Native Method)
at com.google.apphosting.runtime.security.UserClassLoader.findResource(UserClassLoader.java:751)
at java.lang.ClassLoader.getResource(ClassLoader.java:1142)
at com.google.apphosting.runtime.security.UserClassLoader$3.run(UserClassLoader.java:757)
at com.google.apphosting.runtime.security.UserClassLoader$3.run(UserClassLoader.java:751)
at java.security.AccessController.doPrivileged(Native Method)
at com.google.apphosting.runtime.security.UserClassLoader.findResource(UserClassLoader.java:751)
at java.lang.ClassLoader.getResource(ClassLoader.java:1142)
at com.google.apphosting.runtime.security.UserClassLoader$3.run(UserClassLoader.java:757)
at com.google.apphosting.runtime.security.UserClassLoader$3.run(UserClassLoader.java:751)
at java.security.AccessController.doPrivileged(Native Method)
at com.google.apphosting.runtime.security.UserClassLoader.findResource(UserClassLoader.java:751)
at java.lang.ClassLoader.getResource(ClassLoader.java:1142)
...
更新： 我将问题放入App Engine问题跟踪器以及演示此问题的示例应用程序。请按照link查看详细信息。
答案 0 :(得分：3)
似乎问题已在App Engine版本1.9.7中修复。查看更多详情here。
答案 1 :(得分：1)
堆栈溢出通常表示无限循环。使用aspectj，您可以在以下情况中使用它：
Class Logger {
@Autowired
ConfigService conf;
//... used for logging intercepted methods
}
Class ConfigServiceImpl implements ConfigService {
//... this is used to retrieve config
}
如果你现在使用的aspectc表达式是：我想记录我的configServiceImpl 那么你在使用configService时也会有无限循环：
我无法解释为什么它在您的本地设置上工作而不在应用引擎上。或者为什么只有当你使用@Configuration但我认为你应该朝着＆＃34;循环依赖＆＃34; 这样的方向看。
答案 2 :(得分：1)
这可能是因为无限递归，或者因为你的堆栈太大了。尝试提高堆栈大小以查看是否能解决问题（例如，使用-Xss1m）。如果这没有用，那么你可能会有无限的递归。另见：
Java stack overflow error - how to increase the stack size in Eclipse?