Re: How to respond to UnmarshalExceptions...

Oddly enough, there is no exception on the server side.

-----Original Message-----
From: Ben Keeping [mailto:[email protected]] 
Sent: Thursday, August 25, 2005 12:13 PM
To: Robert DiFalco; [email protected]
Subject: RE: How to respond to UnmarshalExceptions...

My thoughts are, for that particular exception, your physical TCP/IP
connection with the remote server broke (for whatever reason) - and
there is no actual way to know if your method call actually executed or
not (reliably). 

You need to catch these exceptions server-side and rollback any
updates/changes done by the call.

Could be wrong though !

-----Original Message-----
From: Robert DiFalco [mailto:[email protected]]
Sent: Thu 8/25/2005 6:39 PM
To: [email protected]
Subject: How to respond to UnmarshalExceptions...
 
When I make a call to a server and I get an UnmarshalException, is there
anyway to know if the call executed on the server and had a connection
error returning the result value (in which case I don't really need to
"retry" or if the call did not execute on the server and I should retry?
This seems like a fairly important distinction when dealing with errors.
Thoughts?

 java.rmi.UnmarshalException: Error unmarshaling return header; nested
exception is: 
        java.net.SocketException: Broken pipe
        at
sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:203
)
        at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:133)
        at
com.tripwire.space.services.server.ServerService_Stub.exec(Unknown
Source)
        at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:324)

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