原因：java.lang.ClassCastException：无法将java.lang.Class强制转换为java.lang.reflect.ParameterizedType

这是解决该问题的通用模型的构造函数：

@MappedSuperclasspublic abstract class Generic<T extends Generic> {    @Transient protected Class<T> entityClass;    public Generic() {        Class obtainedClass = getClass();        Type genericSuperclass = null;        for(;;) { genericSuperclass = obtainedClass.getGenericSuperclass(); if(genericSuperclass instanceof ParameterizedType) {     break; } obtainedClass = obtainedClass.getSuperclass();        }        ParameterizedType genericSuperclass_ = (ParameterizedType) genericSuperclass;        entityClass = ((Class) ((Class) genericSuperclass_.getActualTypeArguments()[0]));    }