一次StackOverflowError异常记录

原有项目A转换成dubbo后,同样代码,报错如下:

018-02-27 09:57:05 [DubboServerHandler-172.19.18.144:20881-thread-5] ERROR: com.alibaba.dubbo.rpc.filter.ExceptionFilter#invoke  请求ID(cea29a2b7824482f908122492ce441c2):  [DUBBO] Got unchecked and undeclared exception which called by 172.19.18.144. service: com.qqjf.xd.enterprise.ICorpVer2BizService, method: saveCorpInfo, exception: java.lang.StackOverflowError: null, dubbo version: 2.6.0, current host: 127.0.0.1
java.lang.StackOverflowError
at sun.reflect.UnsafeFieldAccessorImpl.ensureObj(UnsafeFieldAccessorImpl.java:57)
at sun.reflect.UnsafeQualifiedObjectFieldAccessorImpl.get(UnsafeQualifiedObjectFieldAccessorImpl.java:38)
at java.lang.reflect.Field.get(Field.java:393)
at com.qqjf.common.bean.BeanUtils.beanToMap(BeanUtils.java:220)
at com.qqjf.common.bean.BeanUtils.beanToMap(BeanUtils.java:221)
at com.qqjf.common.bean.BeanUtils.beanToMap(BeanUtils.java:221)
at com.qqjf.common.bean.BeanUtils.beanToMap(BeanUtils.java:221)
at com.qqjf.common.bean.BeanUtils.beanToMap(BeanUtils.java:221)
at com.qqjf.common.bean.BeanUtils.beanToMap(BeanUtils.java:221)
at com.qqjf.common.bean.BeanUtils.beanToMap(BeanUtils.java:221)
at com.qqjf.common.bean.BeanUtils.beanToMap(BeanUtils.java:221)
at com.qqjf.common.bean.BeanUtils.beanToMap(BeanUtils.java:221)
at com.qqjf.common.bean.BeanUtils.beanToMap(BeanUtils.java:221)
at com.qqjf.common.bean.BeanUtils.beanToMap(BeanUtils.java:221)

StackOverflowError造成该异常本质原因两个:

1.java虚拟机栈：如果线程请求的栈深度大于虚拟机栈所允许的深度；

2.本地方法栈:与java虚拟机栈类似。

网上找了一些方案有两个:1.优化原有代码,将反射变量放入队列,可能是优化的不正确,没有效果；

2.使用beanMap进行对象转换成map,没有报StackOverflowError。原因参考

http://blog.youkuaiyun.com/q358543781/article/details/50176953