MySQL Connector/J 5.1: NPE when executing SQL with QueryTimeout>0 on fabric connection
Posted by: Chengdong He
Date: January 30, 2023 02:08AM

When executing sql with QueryTimeout settings, getProperties() in class FabricMySQLConnectionProxy gets NULL when constructing CancelTask resulting in NPE.
And sql with QueryTimeout settings is a common connection availability detection method in connection pool (e.g. tomcat built-in connection pool, druid connection pool). So this may cause the connection availability detection to fail, resulting in unpredictable behavior such as connection pools abandoning available connections.

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MySQL Connector/J 5.1: NPE when executing SQL with QueryTimeout>0 on fabric connection
January 30, 2023 02:08AM


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