Exception in thread "main" net.sf.json.JSONException: java.lang.NoSuchMethodException: Unknown property 'BackCard' on class 'class com.adams.json.User'
at net.sf.json.util.PropertySetStrategy$DefaultPropertySetStrategy._setProperty(PropertySetStrategy.java:69)
at net.sf.json.util.PropertySetStrategy$DefaultPropertySetStrategy.setProperty(PropertySetStrategy.java:60)
at net.sf.json.JSONObject.setProperty(JSONObject.java:1394)
at net.sf.json.JSONObject.toBean(JSONObject.java:443)
at net.sf.json.JSONObject.toBean(JSONObject.java:233)
at com.adams.json.Test.main(Test.java:46)
Caused by: java.lang.NoSuchMethodException: Unknown property 'BackCard' on class 'class com.adams.json.User'
at org.apache.commons.beanutils.PropertyUtilsBean.setSimpleProperty(PropertyUtilsBean.java:2123)
at org.apache.commons.beanutils.PropertyUtils.setSimpleProperty(PropertyUtils.java:890)
at net.sf.json.util.PropertySetStrategy$DefaultPropertySetStrategy._setProperty(PropertySetStrategy.java:67)
... 5 more