Re: ClassCastException with inner-class application

Inner classes don't have a default public constructor unless they are
static. What you think is a public default constructor in a non-static
inner class is behind the scenes in fact a constructor that takes the
outer class' instance.

I am not sure this is the problem in your case, but that is my initial
gut feeling.


Cheers
Niclas

On Tue, Nov 18, 2008 at 4:01 PM, Abdullah Odeh Al-Zaghameem
<[email protected]> wrote:
> Hi all,
>
> I'm developing a new distributed model (T-side and B-side) that is using inner-
> classes at T-side. When I try to invoke a method of B-side remote instance
> (say  b.method(innerClassInstance))from within inner-class of T-side, I got
> the following Exception:
>
> --------------------------------------------------------------------
> java.lang.reflect.InvocationTargetException
>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown
> Source)
>        at java.lang.reflect.Method.invoke(Unknown Source)
> ... etc
>
> Caused By:
>  java.lang.ClassCastException: cannot assign instance of $Proxy2 to field
> allInOnePkg.ChangeTheDecore$_DT__innerInterface.this$0 of type
> allInOnePkg.ChangeTheDecore in instance of
> allInOnePkg.ChangeTheDecore$_DT__innerInterface
>        at java.io.ObjectStreamClass$FieldReflector.setObjFieldValues
> (Unknown Source)
>        at java.io.ObjectStreamClass.setObjFieldValues(Unknown Source)
> ... 39 more!!
>
> --------------------------------------------------------------------
> Where:
> _DT__innerInterface is the inner class that implements the interface
> innerInterface.
>
> Any suggestions in this regard are highly appreciated.
> Thanks in advance.
>
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For a list of frequently asked RMI questions please refer to:
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