Caucho-mysql 2.1.0 bug?

I am seeing exceptions being thrown with reuse of statements and resultsets
(same identity hash ID) that did not occur with 0.2.7.
I cannot seem to find the source for the driver.
The link
(http://www.caucho.com/projects/jdbc-mysql/caucho-jdbc-mysql-2.1.0.jar)
from the project page (http://www.caucho.com/projects/jdbc-mysql/index.xtp)
does not contain source.
Neither does resin-ee-2.1.2-src.tar.gz, nor resin-2.1.2-src.tar.gz.

Any ideas as to the location?

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