使用FastJson工具将Json字符串转成FastEntity类报错

com.alibaba.fastjson.parser.deserializer.MapDeserializer.createMap(MapDeserializer.java:383)
    at com.alibaba.fastjson.parser.deserializer.MapDeserializer.createMap(MapDeserializer.java:320)
    at com.alibaba.fastjson.parser.deserializer.MapDeserializer.deserialze(MapDeserializer.java:37)
    at com.alibaba.fastjson.parser.deserializer.FastjsonASMDeserializer_1_APIHandler.deserialze(Unknown Source)
    at com.alibaba.fastjson.parser.deserializer.JavaBeanDeserializer.deserialze(JavaBeanDeserializer.java:284)
    at com.alibaba.fastjson.parser.DefaultJSONParser.parseObject(DefaultJSONParser.java:689)
    at com.alibaba.fastjson.JSON.parseObject(JSON.java:378)
    at com.alibaba.fastjson.JSON.parseObject(JSON.java:282)
    at com.alibaba.fastjson.JSON.parseObject(JSON.java:555)
    at com.fastchar.extend.fastjson.FastJsonProvider.fromJson(FastJsonProvider.java:25)
    at com.fast.pay.entity.FcDataOrderEntity.getApiHandler(FcDataOrderEntity.java:85)
    at com.fast.pay.entity.FcOrderTradeEntity.toSimpleBean(FcOrderTradeEntity.java:160)
    at com.fast.pay.entity.FcOrderTradeEntity.toPayBean(FcOrderTradeEntity.java:173)
    at com.fast.pay.api.APICreditCardTrade.processRequest(APICreditCardTrade.java:164)
    at com.fast.pay.api.core.APIHelper.routeAPI(APIHelper.java:171)
    at com.fast.pay.api.core.APIHelper.doRequest(APIHelper.java:150)
    at com.fast.pay.action.OpenAction.execute(OpenAction.java:24)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.fastchar.core.FastRoute.invoke(FastRoute.java:212)
    at com.fastchar.core.FastAction.invoke(FastAction.java:93)
    at com.fastchar.extjs.interceptor.FastExtGlobalInterceptor.onInterceptor(FastExtGlobalInterceptor.java:34)
    at com.fastchar.core.FastRoute.invoke(FastRoute.java:200)
    at com.fastchar.core.FastDispatcher.invoke(FastDispatcher.java:551)
    at com.fastchar.core.FastFilter.doFilter(FastFilter.java:54)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:745)
Caused by:java.lang.IllegalAccessException: Class com.alibaba.fastjson.parser.deserializer.MapDeserializer can not access a member of class com.web.entity.FcAccountEntity with modifiers "protected"
    at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:102)
    at java.lang.Class.newInstance(Class.java:436)
    at com.alibaba.fastjson.parser.deserializer.MapDeserializer.createMap(MapDeserializer.java:381)
    at com.alibaba.fastjson.parser.deserializer.MapDeserializer.createMap(MapDeserializer.java:320)
    at com.alibaba.fastjson.parser.deserializer.MapDeserializer.deserialze(MapDeserializer.java:37)
    at com.alibaba.fastjson.parser.deserializer.FastjsonASMDeserializer_1_APIHandler.deserialze(Unknown Source)
    at com.alibaba.fastjson.parser.deserializer.JavaBeanDeserializer.deserialze(JavaBeanDeserializer.java:284)
    at com.alibaba.fastjson.parser.DefaultJSONParser.parseObject(DefaultJSONParser.java:689)
    at com.alibaba.fastjson.JSON.parseObject(JSON.java:378)
    at com.alibaba.fastjson.JSON.parseObject(JSON.java:282)
    at com.alibaba.fastjson.JSON.parseObject(JSON.java:555)
    at com.fastchar.extend.fastjson.FastJsonProvider.fromJson(FastJsonProvider.java:25)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.fastchar.core.FastRoute.invoke(FastRoute.java:212)
    at com.fastchar.core.FastAction.invoke(FastAction.java:93)
    at com.fastchar.extjs.interceptor.FastExtGlobalInterceptor.onInterceptor(FastExtGlobalInterceptor.java:34)
    at com.fastchar.core.FastRoute.invoke(FastRoute.java:200)
    at com.fastchar.core.FastDispatcher.invoke(FastDispatcher.java:551)
    at com.fastchar.core.FastFilter.doFilter(FastFilter.java:54)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:745)