Perform parameter validation for annotated callback methods
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Key: OPENJPA-137
URL: https://issues.apache.org/jira/browse/OPENJPA-137
Project: OpenJPA
Issue Type: Sub-task
Components: jpa
Reporter: Kevin Sutter
Priority: Minor
This is a follow-on Issue to OPENJPA-133. Issue 133 was concerned with
properly processing the xml configuration of callback methods. As I was
experimenting with that scenario, I discovered that our processing for
annotated callback methods and xml callback methods is not consistent. While
we do parameter validation for the xml-configured callbacks, we do not do any
validation of the annotated callback methods. We just assume that the
signature is valid. An incorrectly configured annotated callback method is not
detected until runtime and then the user will get an IllegalArgumentException.
It's good that we eventually catch and log this condition, but if we could do
the validation earlier like we do for xml-configured callbacks, the user will
know about the problem much earlier in the process.
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