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https://issues.apache.org/jira/browse/LUCENE-8642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16744956#comment-16744956
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Alan Woodward commented on LUCENE-8642:
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Thanks [~dweiss]!
> RamUsageTester.sizeOf ignores arrays and collections if --illegal-access=deny
> -----------------------------------------------------------------------------
>
> Key: LUCENE-8642
> URL: https://issues.apache.org/jira/browse/LUCENE-8642
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Dawid Weiss
> Assignee: Dawid Weiss
> Priority: Minor
> Fix For: master (9.0)
>
>
> We have a silent fall-through on catch clause there if a field is
> inaccessible. This causes all collections to not be recursively descended
> into.
> We could hack it so that collection objects are counted "manually". Or we
> could propagate illegal access exception from ram tester, detect which tests/
> objects do try to measure collection objects and either remove them (if it's
> not possible to measure accurately) or change them (if it is possible to
> estimate the size in a different way).
> Looking for feedback on this one.
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