Stefan Seifert created SLING-5389:
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Summary: Sling Models: Do not swallow PostConstruct exceptions
Key: SLING-5389
URL: https://issues.apache.org/jira/browse/SLING-5389
Project: Sling
Issue Type: Bug
Components: Extensions
Affects Versions: Sling Models Impl 1.2.4
Reporter: Stefan Seifert
Fix For: Sling Models Impl 1.2.6
SLING-4161 introduced a special handling for postconstruct errors (in
ModelAdapterFactory):
{code:java}
public <AdapterType> AdapterType getAdapter(Object adaptable,
Class<AdapterType> type) {
Result<AdapterType> result = internalCreateModel(adaptable, type);
if (!result.wasSuccessfull()) {
// treat post-construct and validation exceptions differently,
because they are sometimes used for flow-control or validation purposes
if (result.getThrowable() instanceof PostConstructException ||
result.getThrowable() instanceof InvalidModelException) {
log.debug("Could not adapt to model", result.getThrowable());
} else {
log.error("Could not adapt to model", result.getThrowable());
}
return null;
} else {
return result.getValue();
}
}
{code}
that means that all exceptions that are caught in a {{@PostConstruct}}
annotated method are logged only in debug level. even if it's only a NPE in the
code.
this makes identifying errors in PostConstruct tmethods very hard. we need to
come up with a better solution to differentiate between validation errors not
to log as errors and real errors like an NPE.
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