[Biojava-dev] JDBCPooledDataSource regression
Thomas Down
td2 at sanger.ac.uk
Wed Jan 31 09:53:21 UTC 2007
Hi,
A few weeks ago, this patch removed a couple of apparently-redundant
lines from JDBCPooledDataSource:
http://code.open-bio.org/cgi/viewcvs.cgi/biojava-live/
src/org/biojava/utils/JDBCPooledDataSource.java.diff?
r1=1.2&r2=1.3&cvsroot=biojava
This change causes at least some DataSource objects created using
this class to fail with a NullPointerException the first time a
connection is actually requested. Using biojava-ensembl to access an
Ensembl MySQL database demonstrates this problem consistently.
Reverting to revision 1.2 of JDBCPooledDataSource.java solves the
problem.
It looks like the PoolableConnectionFactory constructor has a side
effect of registering the factory with the specified ObjectPool.
This side effect doesn't seem to be documented particularly clearly,
but the example code towards the bottom of:
http://jakarta.apache.org/commons/dbcp/apidocs/org/apache/
commons/dbcp/package-summary.html#package_description
seems to rely on this behavior.
Would it be possible to roll this source file back to revision 1.2?
Or, alternatively, is there someone who can set me up with commit
access on the new CVS server (I think I still have an account there,
but my password doesn't work since the server move).
Thanks,
Thomas.
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