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https://issues.apache.org/jira/browse/CASSANDRA-14655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16598987#comment-16598987
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Andy Tolbert commented on CASSANDRA-14655:
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Ah - curious about the missing {{system_virtual_schema}} errors.  The way our 
schema resolution logic works for the driver is if any of tables we query for 
schema don't exist, we bail out (unless you use 
{{setSchemaMetadataEnabled(false)}} in your {{Cluster.builder}}).   We had 
assumed that {{system_virtual_schema}} would be present for C* 4.0 always, 
which I believe should be the case, but maybe in the context of the tests, the 
Cassandra server code is not completely loaded?   We could consider silenty 
skipping parsing of virtual tables in this case in the driver, although I think 
it's reasonable to expect that they should always be there (just like we assume 
{{system_schema}} is).

With regards to the NPE, is there an associated stack trace?  Curious to know 
if the {{NPE}} is raised by the driver or C* code.

> Upgrade C* to use latest guava (26.0)
> -------------------------------------
>
>                 Key: CASSANDRA-14655
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14655
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Libraries
>            Reporter: Sumanth Pasupuleti
>            Assignee: Sumanth Pasupuleti
>            Priority: Minor
>             Fix For: 4.x
>
>
> C* currently uses guava 23.3. This JIRA is about changing C* to use latest 
> guava (26.0). Originated from a discussion in the mailing list.



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