2011/3/4 Filip Hanik - Dev Lists <[email protected]>:
> Source and Binary Packages
> http://people.apache.org/~fhanik/jdbc-pool/v1.1.0.1/
>
> Tag
> http://svn.apache.org/repos/asf/tomcat/tags/JDBC_POOL_1_1_0_1/
>
> Documentation
> http://people.apache.org/~fhanik/jdbc-pool/jdbc-pool.html
>
> The proposed 1.1.0.1 release is:
>
> [ ] Broken - do not release
> [ ] Alpha - go ahead and release as 1.1.0.1 Alpha
> [ ] Beta - go ahead and release as 1.1.0.1 Beta
> [X] Stable - go ahead and release as 1.1.0.1 Stable
I tested jdbc-pool with simple applications.
And it works well.
However, when setting removeAbandoned="true", NPE is thrown out.
It seems to occur when the Abandoned processing and SQL execution
processing are executed at the same time.
The synchronization of the Pool-Cleaner thread might not work
correctly though I am not checking the code.
The following are logs.
=====localhost.2011-03-10.log
Mar 10, 2011 1:24:23 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [jdbc] in context with path
[/test] threw exception
java.lang.NullPointerException
at
org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:125)
at $Proxy9.prepareStatement(Unknown Source)
at jdbc_pool.JDBCPoolServlet.doGet(JDBCPoolServlet.java:32)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:394)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
=====
--
Keiichi.Fujino
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