Re: a question about rmi sample

唐杰：
    你好！
    Firstly, i wish your speach on Nanning will get
successful.

    I am sure the attributes are correct, because the 
other test cases can pass with no problem.

    As your said:
    "Basically the framework doesn't know that it
should
    marshal this object as a client stub and therefor 
    the object is incorrect on the client side."

    I guess that it is usage of aspect instance in 
client side, may be not a bug. so, how to declare 
"MyObject.java" then it can be marshal as a client
stub?

    i have been add @remote and @service tag to
"MyObject.java", but not work.

王亦明
2003.6.3

--- Jon Tirsén <[email protected]> wrote:
> I am currently in London and using an internet cafe
> to
> answer. Therefor I don't have access to the code and
> can't verify this. But...
> 
> I think you haven't compiled the attributes or
> haven't
> included them in the classpath or haven't added it
> to
> the search-path with Attributes.addSearchPath.
> Basically the framework doesn't know that it should
> marshal this object as a client stub and therefor
> the
> object is incorrect on the client side.
> 
> If the error persists please answer back and I will
> try to have a closer look at this when I get back
> from
> London.
> 
> Btw, if any of you guys are in London tomorrow
> evening
> come by XTC. I will be there and might give an
> improvised speach on Nanning. See
> www.xpdeveloper.com
> 
> Tip: If you execute Nanning with assertions enabled
> (using java -ea) better error-messages will appear.
> 
> tang jie
> 
>  --- yiming wang <[email protected]> skrev: > hi jon,
> > 
> > In MyStatelessService.java, add following codes:
> > 
> > 	public MyObject getMyObject();
> > 
> > then, in MyStatelessServiceImpl.java:
> > 
> > 	public MyObject getMyObject() {
> >     	    return
> >
>
((MySystem)CurrentPrevayler.getSystem()).getMyObject();
> >         }
> > 
> > finally, in RemoteCallServerTest.java, add
> following
> > test codes:
> > 
> > 	MyObject myObject = myService.getMyObject();
> >         String value = myObject.getValue();
> > 
> > when i run the test case, throws the following
> > exception:
> > 
> > java.lang.ClassCastException
> > 	at
> >
>
com.tirsen.nanning.samples.rmi.RemoteAspect.invoke(RemoteAspect.java:21)
> > 	at
> >
>
com.tirsen.nanning.MixinInstance$InvocationImpl.invokeNext(MixinInstance.java:96)
> > 	at
> >
>
com.tirsen.nanning.MixinInstance.invokeMethod(MixinInstance.java:164)
> > 	at
> >
>
com.tirsen.nanning.AspectInstance.invoke(AspectInstance.java:96)
> > 	at $Proxy2.getValue(Unknown Source)
> > 	at
> >
>
com.tirsen.nanning.samples.rmi.RemoteCallServerTest.testStatelessRemoteCall(RemoteCallServerTest.java:77)
> > 	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:324)
> > 	at
> >
> junit.framework.TestCase.runTest(TestCase.java:154)
> > 	at
> >
> junit.framework.TestCase.runBare(TestCase.java:127)
> > 	at
> >
>
junit.framework.TestResult$1.protect(TestResult.java:106)
> > 	at
> >
>
junit.framework.TestResult.runProtected(TestResult.java:124)
> > 	at
> >
> junit.framework.TestResult.run(TestResult.java:109)
> > 	at
> junit.framework.TestCase.run(TestCase.java:118)
> > 	at
> >
>
junit.framework.TestSuite.runTest(TestSuite.java:208)
> > 	at
> > junit.framework.TestSuite.run(TestSuite.java:203)
> > ......
> > 
> > how to resolve such problem?
> > 
> > i have two scenarios:
> > 1. at client, i only use MyObject to get Data, not
> > to
> > perform any update operations.
> > 2. at client, i will use MyObject to do any
> update,
> > they should be result in server side.
> > 
> > thanks!
> > 
> > wang yiming
> > 2003.6.2
> > 
> > __________________________________
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> 
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