Logging from an AttributeFilterScript

[Max Spicer]

I've been trying to add some debug logging to my metadata filters so I can
track for my own understanding when/if they apply and in what order.
Assuming the logging configuration doesn't suppress the message, is there
any more general reason why the following shouldn't log when the
MetadataFilter runs?

<MetadataFilter xsi:type="EntityAttributes">
<AttributeFilterScript>
<Script>
<![CDATA[
(function (attribute) {
"use strict";

var logger = Java.type("org.slf4j.LoggerFactory").getLogger("testLogger");
logger.error('Hello?');

return true;
}(input));
]]>
</Script>
</AttributeFilterScript>
</MetadataFilter>

I'm running IdP 4.2.1 and have used this approach to log from scripts in
the past but am not seeing any output from this at present. I can see from
the opensaml logging that the metadata filter itself is being applied.

Thanks,

Max Spicer
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