Re: Help: UnmarshalException running Jini

Apart from a few primitive types, I have a Vector in the Entry which holds
String[]. I do run JDBC heavily in the tasks assigned for the entries. The
error seems to happen only when the number of RMI calls gets large. Will
using Externalization on certain classes help? I read on another forum
someone recommending doing a server-side tracing using: 
java.rmi.server.logCalls
sun.rmi.server.exceptionTrace
sun.rmi.transport.logLevel 
sun.rmi.transport.tcp.logLevel

Will this help? Thx.

-Samson





Gregg Wonderly-2 wrote:
> 
> daphantomica wrote:
>>  Hi,
>> 
>> I'm using Jini for a large scale simulation research and when writing and
>> taking Entries, I keep bumping into this EOFException error. I'm using
>> functions with null Transactions which looks like such:
>> space.write(tripTask, null, Lease.FOREVER);
>> TaskEntry thistask = (TaskEntry)space.takeIfExists(tmplt_tsk, null,
>> JavaSpace.NO_WAIT);
>> 
>> Any help would be deeply appreciated!
> 
> The answer should be visible on the other end of this connection.  An EOF
> in a 
> readObject() call indicates that the other end could not send the data. 
> As Bill 
> suggested, this can almost always be attributed to the other end trying to
> write 
> out a serialized stream of something that is not serializable.  Sometimes,
> I've 
> found this to be odd Exception class implementations from oracle and other
> JDBC 
> stacks, as well as various other problems.  If this always happens, then
> most 
> likely you have a data value serialization problem (including the same
> Exception 
> is happening every time).
> 
> Gregg Wonderly
> 
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