有什么想法吗?
我在尝试调用对象时遇到错误。
R java.lang.RuntimeException: java.lang.IllegalArgumentException: object is not an instance of declaring class
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java(Compiled Code))
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java(Compiled Code))
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java(Compiled Code))
at java.lang.reflect.Method.invoke(Method.java(Compiled Code))
at com.test.corp.name.workflow.changetracking.changeimpl.FieldValueChange.apply(FieldValueChange.java:171)
public void apply(DomainContext context) {
try {
final Class entityClazz = Class.forName(entityClass);
Object entity = context.getEntity( entityClazz, primaryKey);
Object entityChange = context.getChangeEntity(entityClazz, primaryKey);
Method setter = getSetterMethod(entityClazz,fieldName);
if(entity!=null)
setter.invoke(entity, new Object[]{getValue()}); //this line 171
if(entityChange!=null)
setter.invoke(entityChange, new Object[]{getValue()});
}catch(Exception e) {
throw new RuntimeException(e);
}
}
我认为这已经足够了,但仍有错误,有人吗?
答案 0 :(得分:1)
它说的是entity
不属于班级entityClazz
。当您通过反射setter.invoke
进行调用时,它当然会期望该类的对象。
尝试输出entity.getClass()
和entityClazz
,看看它们是否相同,或者至少entityClazz
是entity.getClass()
的父级。