Gary Tully created ARTEMIS-4766:
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Summary: gate every newInstance call with a type check on the
class to ensure we only call static initialisers of the expected type
Key: ARTEMIS-4766
URL: https://issues.apache.org/jira/browse/ARTEMIS-4766
Project: ActiveMQ Artemis
Issue Type: Improvement
Components: Configuration
Affects Versions: 2.33.0
Reporter: Gary Tully
On our extension points, where configuration provides the implementation class
name, like plugins or transformers, we need to create an instance of the
configured class at runtime.
We typically know the interface type we are expecting, so we can enforce this
check before we create in instance, in that way we won't every call static
initialises on the wrong type in error. In cases where some gadget can be
injected into our configuration, it will need to be specialised for our
interfaces to be effective, which creates one additional hurdle to jump over.
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