程序在展示层的时候会出现堆栈溢出

[abccyz]

java.lang.StackOverflowError
at java.lang.Exception.(Exception.java:77)
at java.lang.reflect.InvocationTargetException.(InvocationTargetException.java:54)
at sun.reflect.GeneratedConstructorAccessor25.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at httl.spi.converters.BeanMapConverter.convert(BeanMapConverter.java:76)
at httl.spi.converters.BeanMapConverter.convert(BeanMapConverter.java:44)
at httl.spi.codecs.json.JSONValue.writeValue(JSONValue.java:110)