Hello Dev List,
I encountered an issue today with my KnowledgeAgent removing resources
from its RuleBase shortly after creating it. I have the
ResourceChangeScanner running in my application.
I tracked the issue back to the scan() method in
ResourceChangeScannerImpl. It appears that the method is trying to
identify resources that are no longer available and remove them from both
the RuleBase and future scans. To do this it is checking lastModified on
the resource and on a result of 0 removing the resource. The resources
that I configured in my change-set definitely still exist, but due to URL
handler implementation provided by my classloader, getLastModified always
returns 0. (The resource I'm retrieving is coming from a jar that is in
my application's classpath and the URL handler implementation is
oracle.classloader.SharedCodeSourceURL)
Do you think it would be possible for the scan to identify unavailable
resources some other way than with the lastModified? and then if
lastModified is 0 maybe always or never update the resource? I'm not sure
what the best approach to that would be, but removing resources when their
lastModified is 0 seems incorrect to me.
Thanks,
Steve Ronderos
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