Infinite Recusion Issue When Creating a Service
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Key: HIVEMIND-155
URL: http://issues.apache.org/jira/browse/HIVEMIND-155
Project: HiveMind
Type: Bug
Components: framework
Versions: 1.1
Environment: Windows XP
Reporter: Jean Safar
I am experiencing a problem by which HiveMind (version 1.1 and 1.1-beta-3) will
enter into a infinite recursion when creating a service. This eventually
exhausts all the available memory and makes the program unusable.
I have a Service Class MyService implementing the interface IMyService.
This class has a constructor public MyService (IMyService) {...} as well as
other constructors.
The service point of my service has no parameters or explicit injection via
<set-service.
When creating the service, it will eventually arrive at a the following test
within the method instantiateCoreServiceInstance in BuildFactoryLogic.
if (_parameter.getAutowireServices() && parameters.isEmpty())
{
return instantiateConstructorAutowiredInstance(serviceClass);
}
This test will be satisfied and the instantiateConstructorAutowiredInstance
will then be called.
In it will try and get all the constructors for the given class removing those
not taking interfaces as parameters.
List serviceConstructorCandidates = getOrderedServiceConstructors(serviceClass);
One of this constructor will be the one with IMyService in it. If with bad luck
it comes first in the iteration that follows, the code will try and call the
constructor with parameters which are services attached to the interfaces of
the parameters.
Since the interface is the very interface of the service I am trying to build,
it will enter the loop and never come back.
An easy and effective fix might be to disregard constructors with the interface
of the service it is currently trying to build thus avoiding the loop. I have
tried that and it works fine.
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