tomcat can't unregister JDBC Driver in web Listener when application stopped.

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h2 version : 1.3.166
tomcat version : 7.0.27

netbeans ide show me following message whenever redeploy.

2012. 4. 17 오후 5:38:32 org.apache.catalina.loader.WebappClassLoader 
clearReferencesJdbc
Severe: The web application [/abc] registered the JDBC driver [org.h2.Driver] 
but failed to unregister it when the web application was stopped. To prevent a 
memory leak, the JDBC Driver has been forcibly unregistered

i was coded following line in web listener contextInitialized() method.

cp = JdbcConnectionPool.create(url, user, password);

and in contextDestroyed() method.

cp.dispose();

Original issue reported on code.google.com by mug...@gmail.com on 17 Apr 2012 at 9:58

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This should be fixed in H2 version 1.3.168 

Original comment by thomas.t...@gmail.com on 30 Nov 2012 at 6:57

• Changed state: WorksForMe

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Still getting "failed to unregister" warning on H2 1.3.173 and Tomcat 7.0.47. 
Using DbStarter to start/stop H2.

Original comment by burran...@gmail.com on 31 Oct 2013 at 12:10

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OK, I will re-open the issue. I didn't try to reproduce the problem however, so 
I will set the status to "New".

Original comment by thomas.t...@gmail.com on 18 Dec 2013 at 7:29

• Changed state: New