'DefaultAutoConverter' error:

[1050202387]

[Forest] Response: Status = 504, Time = 60031ms
com.dtflys.forest.exceptions.ForestHandlerException: com.dtflys.forest.exceptions.ForestConvertException: [Forest] auto converter: 'DefaultAutoConverter' error:
at com.dtflys.forest.handler.ResultHandler.getResult(ResultHandler.java:156)
at com.dtflys.forest.handler.ResultHandler.getResult(ResultHandler.java:44)
at com.dtflys.forest.http.ResultGetter.get(ResultGetter.java:30)
at com.dtflys.forest.http.ForestResponse.getResult(ForestResponse.java:367)
at com.dtflys.forest.reflection.MethodLifeCycleHandler.handleSyncWithException(MethodLifeCycleHandler.java:89)
at com.dtflys.forest.reflection.MethodLifeCycleHandler.handleSync(MethodLifeCycleHandler.java:55)
at com.dtflys.forest.backend.ResponseHandler.handleSync(ResponseHandler.java:39)
at com.dtflys.forest.backend.okhttp3.response.OkHttp3ResponseHandler.handleSync(OkHttp3ResponseHandler.java:29)
at com.dtflys.forest.backend.okhttp3.executor.OkHttp3Executor.execute(OkHttp3Executor.java:245)
at com.dtflys.forest.backend.okhttp3.executor.OkHttp3Executor.execute(OkHttp3Executor.java:279)
at com.dtflys.forest.http.ForestRequest.execute(ForestRequest.java:4706)
at com.dtflys.forest.reflection.ForestMethod.invoke(ForestMethod.java:1503)
at com.dtflys.forest.proxy.InterfaceProxyHandler.invoke(InterfaceProxyHandler.java:236)
at com.sun.proxy.$Proxy144.zfcgprocurementnotice(Unknown Source)
at com.jr.datacenter.external.businesscode.hnJyTs.service.Firstorder.HnZfcgNoticePush.execute(HnZfcgNoticePush.java:194)
at com.jr.datacenter.external.businesscode.hnJyTs.job.HnPublicResourceJob.HnPrJ(HnPublicResourceJob.java:111)
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.xxl.job.core.handler.impl.MethodJobHandler.execute(MethodJobHandler.java:31)
at com.xxl.job.core.thread.JobThread.run(JobThread.java:163)
Caused by: com.dtflys.forest.exceptions.ForestConvertException: [Forest] auto converter: 'DefaultAutoConverter' error:
at com.dtflys.forest.converter.auto.DefaultAutoConverter.convertToJavaObject(DefaultAutoConverter.java:110)
at com.dtflys.forest.handler.ResultHandler.getResult(ResultHandler.java:147)
... 21 more
Caused by: java.lang.NullPointerException
at com.dtflys.forest.converter.auto.DefaultAutoConverter.tryConvert(DefaultAutoConverter.java:35)
at com.dtflys.forest.converter.auto.DefaultAutoConverter.convertToJavaObject(DefaultAutoConverter.java:87)
... 22 more
这个是什么问题呢