回覆︰ Tomcat 8 webapp failed to start on Windows reboot

2015-06-21 Thread James Cheung
Hi Chris, 

 
 
 
Christopher Schultz ch...@christopherschultz.net 於 2015年06月19日 (週五) 3:16 AM 
寫道﹕ 
-BEGIN PGP SIGNED MESSAGE- 
Hash: SHA256 
 
James, 
 
On 6/18/15 4:56 AM, James Cheung wrote: 
 Environment 
 
 --- Tomcat 8.0.21 x64 bit, JDK 8u31, Windows 2008 R2 x64 
 bit 
 
 
 Problem --- After upgrading from tomcat 7.0.42 to 8.0.21, my 
 webapp(gih-ws) failed to startup every time the machine is 
 rebooted. In the tomcat catalina log, it did not show any error, 
 but in my webapp(gih-ws) access log, it showed below error. 
 
 
 ERROR 08 6月 2015 03:20:39,329 (AxisEngine.java:219) -[]- The 
 service cannot be found for the endpoint reference (EPR) 
 /gih-ws/services/GIH3Service/keywordSearchWithIndex?maxNoOfResult=11k 
eyword=North%20Point%20Government%20OfficesstartIndex=0response=applic 
ation%2Fjsonlang=enextent=839266.674348%2C816651.312098%2C839765.32565 
2%2C817436.687902 
  org.apache.axis2.AxisFault: The service cannot be found for the 
 endpoint reference (EPR) 
 /gih-ws/services/GIH3Service/keywordSearchWithIndex?maxNoOfResult=11k 
eyword=North%20Point%20Government%20OfficesstartIndex=0response=applic 
ation%2Fjsonlang=enextent=839266.674348%2C816651.312098%2C839765.32565 
2%2C817436.687902 
  at 
 org.apache.axis2.engine.DispatchPhase.checkPostConditions(DispatchPhas 
e.java:78) 
 
This looks like you are trying to call a web service that does not 
exist. Is the gih-ws service failing to start because it can't access 
a remote web service, or is the local Axis service logging that the 
gih-ws service hasn't been deployed? 
 

We didn't make change to the web servcie. They worked fine before our upgrade. 

 at org.apache.axis2.engine.Phase.invoke(Phase.java:329) at 
 org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:262) at 
 org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:168) at 
 org.apache.axis2.transport.http.util.RESTUtil.invokeAxisEngine(RESTUti 
l.java:144) 
  at 
 org.apache.axis2.transport.http.util.RESTUtil.processURLRequest(RESTUt 
il.java:139) 
  at 
 org.apache.axis2.transport.http.AxisServlet$RestRequestProcessor.proce 
ssURLRequest(AxisServlet.java:837) 
  at 
 org.apache.axis2.transport.http.AxisServlet.doGet(AxisServlet.java:273 
) 
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:622) at 
 javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at 
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli 
cationFilterChain.java:291) 
  at 
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi 
lterChain.java:206) 
  at 
 org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
  at 
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli 
cationFilterChain.java:239) 
  at 
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi 
lterChain.java:206) 
  at 
 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperVa 
lve.java:219) 
  at 
 org.apache.catalina.core.StandardContextValve.invoke(StandardContextVa 
lve.java:106) 
  at 
 org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authenticat 
orBase.java:502) 
  at 
 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.ja 
va:142) 
  at 
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.ja 
va:79) 
  at 
 org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAcces 
sLogValve.java:610) 
  at 
 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValv 
e.java:88) 
  at 
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java 
:518) 
  at 
 org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp1 
1Processor.java:1091) 
  at 
 org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(A 
bstractProtocol.java:668) 
  at 
 org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.pro 
cess(Http11AprProtocol.java:283) 
  at 
 org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoi 
nt.java:2463) 
  at 
 org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint 
.java:2452) 
  at 
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.j 
ava:1142) 
  at 
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor. 
java:617) 
  at 
 org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThr 
ead.java:61) 
  at java.lang.Thread.run(Thread.java:745) 
 
 
 Our finding --- We stopped the tomcat 8 service and then 
 started it again and the webapp(gih-ws) can startup and there was 
 no error in the gih-ws access log. It is so weird. Is there any 
 tomcat 8 service startup issue every time the machine is rebooted? 
 Should we start the Tomcat 8 service in Startup(Delayed) mode? I 
 also include below tomcat catalina log for your reference. Thanks. 
 
 
 Tomcat catalina log --- 
 
 10-Jun-2015 10:04:20.250 INFO [Thread-25] 
 org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler 
 

回覆︰ Tomcat 8 webapp failed to start on Windows reboot

2015-06-18 Thread James Cheung
Hi Chris, 

 
 
 
Christopher Schultz ch...@christopherschultz.net 於 2015年06月19日 (週五) 3:16 AM 
寫道﹕ 
-BEGIN PGP SIGNED MESSAGE- 
Hash: SHA256 
 
James, 
 
On 6/18/15 4:56 AM, James Cheung wrote: 
 Environment 
 
 --- Tomcat 8.0.21 x64 bit, JDK 8u31, Windows 2008 R2 x64 
 bit 
 
 
 Problem --- After upgrading from tomcat 7.0.42 to 8.0.21, my 
 webapp(gih-ws) failed to startup every time the machine is 
 rebooted. In the tomcat catalina log, it did not show any error, 
 but in my webapp(gih-ws) access log, it showed below error. 
 
 
 ERROR 08 6月 2015 03:20:39,329 (AxisEngine.java:219) -[]- The 
 service cannot be found for the endpoint reference (EPR) 
 /gih-ws/services/GIH3Service/keywordSearchWithIndex?maxNoOfResult=11k 
eyword=North%20Point%20Government%20OfficesstartIndex=0response=applic 
ation%2Fjsonlang=enextent=839266.674348%2C816651.312098%2C839765.32565 
2%2C817436.687902 
  org.apache.axis2.AxisFault: The service cannot be found for the 
 endpoint reference (EPR) 
 /gih-ws/services/GIH3Service/keywordSearchWithIndex?maxNoOfResult=11k 
eyword=North%20Point%20Government%20OfficesstartIndex=0response=applic 
ation%2Fjsonlang=enextent=839266.674348%2C816651.312098%2C839765.32565 
2%2C817436.687902 
  at 
 org.apache.axis2.engine.DispatchPhase.checkPostConditions(DispatchPhas 
e.java:78) 
 
This looks like you are trying to call a web service that does not 
exist. Is the gih-ws service failing to start because it can't access 
a remote web service, or is the local Axis service logging that the 
gih-ws service hasn't been deployed? 
 

We didn't make change to the web servcie. They worked fine before our upgrade. 

 at org.apache.axis2.engine.Phase.invoke(Phase.java:329) at 
 org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:262) at 
 org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:168) at 
 org.apache.axis2.transport.http.util.RESTUtil.invokeAxisEngine(RESTUti 
l.java:144) 
  at 
 org.apache.axis2.transport.http.util.RESTUtil.processURLRequest(RESTUt 
il.java:139) 
  at 
 org.apache.axis2.transport.http.AxisServlet$RestRequestProcessor.proce 
ssURLRequest(AxisServlet.java:837) 
  at 
 org.apache.axis2.transport.http.AxisServlet.doGet(AxisServlet.java:273 
) 
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:622) at 
 javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at 
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli 
cationFilterChain.java:291) 
  at 
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi 
lterChain.java:206) 
  at 
 org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
  at 
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli 
cationFilterChain.java:239) 
  at 
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi 
lterChain.java:206) 
  at 
 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperVa 
lve.java:219) 
  at 
 org.apache.catalina.core.StandardContextValve.invoke(StandardContextVa 
lve.java:106) 
  at 
 org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authenticat 
orBase.java:502) 
  at 
 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.ja 
va:142) 
  at 
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.ja 
va:79) 
  at 
 org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAcces 
sLogValve.java:610) 
  at 
 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValv 
e.java:88) 
  at 
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java 
:518) 
  at 
 org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp1 
1Processor.java:1091) 
  at 
 org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(A 
bstractProtocol.java:668) 
  at 
 org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.pro 
cess(Http11AprProtocol.java:283) 
  at 
 org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoi 
nt.java:2463) 
  at 
 org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint 
.java:2452) 
  at 
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.j 
ava:1142) 
  at 
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor. 
java:617) 
  at 
 org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThr 
ead.java:61) 
  at java.lang.Thread.run(Thread.java:745) 
 
 
 Our finding --- We stopped the tomcat 8 service and then 
 started it again and the webapp(gih-ws) can startup and there was 
 no error in the gih-ws access log. It is so weird. Is there any 
 tomcat 8 service startup issue every time the machine is rebooted? 
 Should we start the Tomcat 8 service in Startup(Delayed) mode? I 
 also include below tomcat catalina log for your reference. Thanks. 
 
 
 Tomcat catalina log --- 
 
 10-Jun-2015 10:04:20.250 INFO [Thread-25] 
 org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler 
 

Re: Tomcat 8 webapp failed to start on Windows reboot

2015-06-18 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256

James,

On 6/18/15 4:56 AM, James Cheung wrote:
 Environment
 
 --- Tomcat 8.0.21 x64 bit, JDK 8u31, Windows 2008 R2 x64
 bit
 
 
 Problem --- After upgrading from tomcat 7.0.42 to 8.0.21, my
 webapp(gih-ws) failed to startup every time the machine is
 rebooted. In the tomcat catalina log, it did not show any error,
 but in my webapp(gih-ws) access log, it showed below error.
 
 
 ERROR 08 6月 2015 03:20:39,329 (AxisEngine.java:219) -[]- The
 service cannot be found for the endpoint reference (EPR)
 /gih-ws/services/GIH3Service/keywordSearchWithIndex?maxNoOfResult=11k
eyword=North%20Point%20Government%20OfficesstartIndex=0response=applic
ation%2Fjsonlang=enextent=839266.674348%2C816651.312098%2C839765.32565
2%2C817436.687902
  org.apache.axis2.AxisFault: The service cannot be found for the
 endpoint reference (EPR)
 /gih-ws/services/GIH3Service/keywordSearchWithIndex?maxNoOfResult=11k
eyword=North%20Point%20Government%20OfficesstartIndex=0response=applic
ation%2Fjsonlang=enextent=839266.674348%2C816651.312098%2C839765.32565
2%2C817436.687902
  at
 org.apache.axis2.engine.DispatchPhase.checkPostConditions(DispatchPhas
e.java:78)
 
This looks like you are trying to call a web service that does not
exist. Is the gih-ws service failing to start because it can't access
a remote web service, or is the local Axis service logging that the
gih-ws service hasn't been deployed?

 at org.apache.axis2.engine.Phase.invoke(Phase.java:329) at
 org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:262) at
 org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:168) at
 org.apache.axis2.transport.http.util.RESTUtil.invokeAxisEngine(RESTUti
l.java:144)
  at
 org.apache.axis2.transport.http.util.RESTUtil.processURLRequest(RESTUt
il.java:139)
  at
 org.apache.axis2.transport.http.AxisServlet$RestRequestProcessor.proce
ssURLRequest(AxisServlet.java:837)
  at
 org.apache.axis2.transport.http.AxisServlet.doGet(AxisServlet.java:273
)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:622) at
 javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
cationFilterChain.java:291)
  at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
lterChain.java:206)
  at
 org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
  at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli
cationFilterChain.java:239)
  at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi
lterChain.java:206)
  at
 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperVa
lve.java:219)
  at
 org.apache.catalina.core.StandardContextValve.invoke(StandardContextVa
lve.java:106)
  at
 org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authenticat
orBase.java:502)
  at
 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.ja
va:142)
  at
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.ja
va:79)
  at
 org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAcces
sLogValve.java:610)
  at
 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValv
e.java:88)
  at
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java
:518)
  at
 org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp1
1Processor.java:1091)
  at
 org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(A
bstractProtocol.java:668)
  at
 org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.pro
cess(Http11AprProtocol.java:283)
  at
 org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoi
nt.java:2463)
  at
 org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint
.java:2452)
  at
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.j
ava:1142)
  at
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.
java:617)
  at
 org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThr
ead.java:61)
  at java.lang.Thread.run(Thread.java:745)
 
 
 Our finding --- We stopped the tomcat 8 service and then
 started it again and the webapp(gih-ws) can startup and there was
 no error in the gih-ws access log. It is so weird. Is there any
 tomcat 8 service startup issue every time the machine is rebooted?
 Should we start the Tomcat 8 service in Startup(Delayed) mode? I
 also include below tomcat catalina log for your reference. Thanks.
 
 
 Tomcat catalina log ---
 
 10-Jun-2015 10:04:20.250 INFO [Thread-25]
 org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler
 [http-apr-9090] 10-Jun-2015 10:04:20.313 INFO [Thread-25]
 org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler
 [http-bio-9443] 10-Jun-2015 10:04:20.375 INFO [Thread-25]
 org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler
 [ajp-apr-8009] 10-Jun-2015 10:04:20.437 INFO 

Tomcat 8 webapp failed to start on Windows reboot

2015-06-18 Thread James Cheung
Environment 

--- 
Tomcat 8.0.21 x64 bit, JDK 8u31, Windows 2008 R2 x64 bit 


Problem 
--- 
After upgrading from tomcat 7.0.42 to 8.0.21, my webapp(gih-ws) failed to 
startup every time the machine is rebooted. In the tomcat catalina log, it did 
not show any error, but in my webapp(gih-ws) access log, it showed below error. 


ERROR 08 6月 2015 03:20:39,329 (AxisEngine.java:219) -[]- The service cannot be 
found for the endpoint reference (EPR) 
/gih-ws/services/GIH3Service/keywordSearchWithIndex?maxNoOfResult=11keyword=North%20Point%20Government%20OfficesstartIndex=0response=application%2Fjsonlang=enextent=839266.674348%2C816651.312098%2C839765.325652%2C817436.687902
 
org.apache.axis2.AxisFault: The service cannot be found for the endpoint 
reference (EPR) 
/gih-ws/services/GIH3Service/keywordSearchWithIndex?maxNoOfResult=11keyword=North%20Point%20Government%20OfficesstartIndex=0response=application%2Fjsonlang=enextent=839266.674348%2C816651.312098%2C839765.325652%2C817436.687902
 
at 
org.apache.axis2.engine.DispatchPhase.checkPostConditions(DispatchPhase.java:78)
 
at org.apache.axis2.engine.Phase.invoke(Phase.java:329) 
at org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:262) 
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:168) 
at 
org.apache.axis2.transport.http.util.RESTUtil.invokeAxisEngine(RESTUtil.java:144)
 
at 
org.apache.axis2.transport.http.util.RESTUtil.processURLRequest(RESTUtil.java:139)
 
at 
org.apache.axis2.transport.http.AxisServlet$RestRequestProcessor.processURLRequest(AxisServlet.java:837)
 
at org.apache.axis2.transport.http.AxisServlet.doGet(AxisServlet.java:273) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:622) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) 
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
 
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
 
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 
at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
 
at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
 
at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
 
at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) 
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) 
at 
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
 
at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518) 
at 
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
 
at 
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668)
 
at 
org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:283)
 
at 
org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2463)
 
at 
org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2452)
 
at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
at 
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
 
at java.lang.Thread.run(Thread.java:745) 


Our finding 
--- 
We stopped the tomcat 8 service and then started it again and the 
webapp(gih-ws) can startup and there was no error in the gih-ws access log. It 
is so weird. Is there any tomcat 8 service startup issue every time the machine 
is rebooted? Should we start the Tomcat 8 service in Startup(Delayed) mode? I 
also include below tomcat catalina log for your reference. Thanks. 

Tomcat catalina log 
--- 

10-Jun-2015 10:04:20.250 INFO [Thread-25] 
org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler 
[http-apr-9090] 
10-Jun-2015 10:04:20.313 INFO [Thread-25] 
org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler 
[http-bio-9443] 
10-Jun-2015 10:04:20.375 INFO [Thread-25] 
org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler 
[ajp-apr-8009] 
10-Jun-2015 10:04:20.437 INFO [Thread-25] 
org.apache.catalina.core.StandardService.stopInternal Stopping service Catalina 
10-Jun-2015 10:04:20.500 WARNING [localhost-startStop-2] 
org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web 
application [gih-ws] registered the JDBC driver 
[org.logicalcobwebs.proxool.ProxoolDriver] but failed to unregister it when the 
web application was stopped. To