terminate called after throwing an instance of 'Ice::ObjectNotExistException'

rodolfo.bamberg

Hi,

I am using Ice 3.2.1 with C++

After calling a remote function using a proxy to an object that might or might not be hosted at an Object Adapter, the program terminates, although I am catching and ignoring all exceptions.

Here's the client-side code.

try {
int moteData=this->myPrx->getData1();
...
...
}
catch(...)
{
//don't care, go on
cout<<"Ice exception"<<endl;
}

The server-side code eliminates the servant using OA->remove(IceID).

I don't know why terminate is called, since I need to either ignore it or react to the exception.

Thank you in advance

matthew

Its not clear to me why you get this exception. I suspect you'll find that the problem lies somewhere in your code. To confirm this you could modify the hello world demo that comes with the Ice distribution. In demo/Ice/hello/config.client change

Hello.Proxy=hello:tcp -p 10000:udp -p 10000:ssl -p 10001

to

Hello.Proxy=helloX:tcp -p 10000:udp -p 10000:ssl -p 10001

Then run the client. You should get an ObjectNotExistException like so:

august:hello matthew$ ./client
./client: Outgoing.cpp:422: Ice::ObjectNotExistException:
object does not exist:
identity: `helloX'
facet:
operation: ice_isA

If you cannot work out what is causing your problem you should:
- Upgrade to Ice 3.3 (we do not provide free support for older versions of Ice on these forums).
- Create a complete, self-compilable example that demonstrates your problem and attach it to this thread.

rodolfo.bamberg

I found out that the program is only terminated at some points in the program, if I call a function of a non-existent proxy. E.g. At main(), just after creating the object adapter, and adding the servant to it. If I remove it again from the object adapter and call a function at its proxy, I just get the normal exception with no crash.

I just cannot find out why at other points of the program it terminates. I might have something to do with the fact that I use many threads. I also tried to reproduce the problem with another small program but It didn't work, I just got the normal exceptions.

I will continue trying to find the error, and reproduce it with Ice 3.3. Anyway here is the stack trace. Thank you for your help.

gdb/mi (7/14/08 5:21 PM) (Suspended)
Thread [1] (Suspended)
Thread [2] (Suspended)
Thread [3] (Suspended)
Thread [4] (Suspended)
Thread [5] (Suspended)
Thread [6] (Suspended: Signal 'SIGABRT' received. Description: aborted.)
16 __kernel_vsyscall() 0xffffe410
15 raise() 0xb7a97df0
14 abort() 0xb7a99641
13 __gnu_cxx::__verbose_terminate_handler() 0xb7c9a270
12 <symbol is not available> 0xb7c97ca5
11 std::terminate() 0xb7c97ce2
10 __cxa_throw() 0xb7c97e1a
9 Ice::ObjectNotExistException::ice_throw() Ice-3.2.1/src/Ice/LocalException.cpp:936 0xb7ea2cea
8 IceInternal::ProxyFactory::checkRetryAfterException() Ice-3.2.1/Ice-3.2.1/src/Ice/ProxyFactory.cpp:139 0xb7efd721
7 IceProxy::Ice::Object::__handleException() Ice-3.2.1/src/Ice/Proxy.cpp:956 0xb7f02dc4
6 IceProxy::sensorNetwork::SensorMote::getData1()
5 IceProxy::sensorNetwork::SensorMote::getData1()
4 SensorMotesHolder::parseMoteMessage()
3 serialPortListen()
2 start_thread() 0xb7cd231b
1 clone() 0xb7b3d57e
Thread [7] (Suspended)
Thread [8] (Suspended)
gdb (7/14/08 5:21 PM)


terminate called after throwing an instance of 'Ice::ObjectNotExistException'
what(): N3Ice23ObjectNotExistExceptionE