EJB+Hibernate报错,急！！！哪位大神指教！！！！！！！！！！

[pqy55]

java.lang.reflect.UndeclaredThrowableException
at $Proxy546.findById(Unknown Source)
at com.boc.web.service.warehouse.WhObjectsService.getWhObjectsByObjId(WhObjectsService.java:222)
at com.boc.web.action.warehouse.work.CargoStockOutAction.saveCargoStockOutSet(CargoStockOutAction.java:295)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:440)
at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:279)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)
at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:163)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
Caused by: java.io.IOException: Field hash null is not available on current classPath for class com.boc.domain.warehouse.WhObjects
at org.jboss.serial.classmetamodel.StreamingClass.readStream(StreamingClass.java:106)
at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:381)
at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:82)
at org.jboss.serial.objectmetamodel.DataContainer$DataContainerInput.readObject(DataContainer.java:845)
at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:249)
at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:122)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)

[pqy55]

怎么没人回帖呢！！！！！！！！！！！！

[孟子E章]

你可以 看看 WhObjectsService.java:222行处的代码，可能是有Exception出现

[pqy55]

WhObjectsService.java:222行只是调用hibernate查询数据的方法，可以查询到对应的数据，就是不懂发生什么错误

[pqy55]

有的，在其他的电脑上没有报这个异常

[若天_]

你的pojo有定义默认的构造函数么

[holzkoepfer]

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) Caused by: java.io.IOException: Field hash null is not available on current classPath for class com.boc.domain.warehouse.WhObjects