Weld creates multiple interceptor instances per target instance
---------------------------------------------------------------
Key: WELD-1016
URL: https://issues.jboss.org/browse/WELD-1016
Project: Weld
Issue Type: Bug
Components: Interceptors and Decorators
Affects Versions: 1.1.2.Final
Reporter: Jozef Hartinger
Fix For: 1.1.4.Final, 2.0.0.Final
The CDI spec says:
{quote}
An interceptor instance is a dependent object of the object it inter-cepts.
{quote}
The Interceptors spec says:
{quote}
The lifecycle of an interceptor instance is the same as that of the target
class instance with which it
is associated. When the target instance is created, a corresponding interceptor
instance is created for
each associated interceptor class. These interceptor instances are destroyed
when the target instance
is removed.
{quote}
and also
{quote}
An interceptor instance may hold state.
{quote}
It is clear that at most one instance of an interceptor class should be created
for an instance of a CDI bean. However, Weld currently creates an instance per
method per target instance.
Having a simple intercepted bean:
{code:JAVA}
@ApplicationScoped
@LionBinding
public class Lion
public Object foo() {
return null;
}
public Object bar() {
return null;
}
}
{code}
* multiple invocations of a single method (e.g. foo()) are intercepted by the
same interceptor instance
* when invoking different methods on the same bean instance, every method is
intercepted by a different interceptor instance - which is wrong
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