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https://issues.apache.org/jira/browse/ARTEMIS-1135?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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clebert suconic closed ARTEMIS-1135.
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> Overflows during integer addition or multiplication
> ---------------------------------------------------
>
> Key: ARTEMIS-1135
> URL: https://issues.apache.org/jira/browse/ARTEMIS-1135
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Affects Versions: 2.0.0
> Reporter: Aditya Sharad
> Fix For: 2.1.0
>
>
> The "Result of integer multiplication cast to long" and "Implicit narrowing
> conversion in compound assignment" rules at
> https://lgtm.com/projects/g/apache/activemq-artemis/alerts/ detect multiple
> instances of potential overflow during integer addition or multiplication.
> The first rule detects two instances where the result of the multiplication
> is cast to {{long}}, but the individual operands are {{int}}s. This may lead
> to overflow during the multiplication.
> - In {{MySQLSQLProvider}}, this occurs when setting the max blob size, which
> overflows to zero at runtime rather than the intended 4GB.
> - In {{MQTTProtocolHandler}}, this occurs when determining the time to keep
> the connection alive.
> The second rule detects two instances where a {{long}} value is added to an
> {{int}}-valued variable, forcing implicit conversion and possibly overflow.
> - In {{AddressControlImpl}}, queue message counts are {{longs}} but added up
> in an {{int}}.
> - In {{MessageCounter.DayCounter}}, the {{counters}} array elements will have
> {{long}} message counts added to them, and so should be of type {{long}}.
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