[Bug 54116] Deadlocks with mysql driver

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=54116

--- Comment #1 from Patric Rufflar <pa...@rufflar.com> ---
Looks like mysql jdbc driver bug because they use inconsistent locking:

com.mysql.jdbc.ConnectionImpl.close() locks in the following order:

1. com.mysql.jdbc.JDBC4Connection
2. com.mysql.jdbc.JDBC4ResultSet

while com.mysql.jdbc.ResultSetImpl.getString() locks in a reversed order:

1. com.mysql.jdbc.JDBC4ResultSet
2. com.mysql.jdbc.JDBC4Connection

Because I see no jdbc pool classes involved in the locking of these objects I
doubt that jdbc pool is responsible in this deadlock situation.

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