Hi Chris,
> o.a.t.d.d.BasicDataSource implements javax.sql.DataSource. What's the
> problem?
The problem is that whatever is returned from the lookup call is causing an
exception. I tested what is coming back and it is an o.a.t.d.d.B.D.S and it
is putting it to a DataSource.
The stack trace follows:
SEVERE: Could not execute action
java.lang.RuntimeException: helloCould not create resource factory instance
at dbtest.HelloWorld.execute(HelloWorld.java:46)
at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(
NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(
DelegatingMethodAccessorImpl.java:25)
at
java.lang.reflect.Method.invoke (
Method.java:585)
at
com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(
DefaultActionInvocation.java:408)
at
com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(
DefaultActionInvocation.java:262)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(
DefaultActionInvocation.java:224)
at
com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(
DefaultWorkflowInterceptor.java:213)
at
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:219)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:218)
at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(
UtilTimerStack.java:455)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(
DefaultActionInvocation.java:216)
at
com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(
ValidationInterceptor.java:115)
at
org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:48)
at
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:219)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:218)
at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(
UtilTimerStack.java:455)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(
DefaultActionInvocation.java:216)
at
com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(
ConversionErrorInterceptor.java:123)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:219)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:218)
at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(
UtilTimerStack.java:455)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(
DefaultActionInvocation.java:216)
at
com.opensymphony.xwork2.interceptor.ParametersInterceptor.intercept(
ParametersInterceptor.java:161)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:219)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:218)
at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(
UtilTimerStack.java:455)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(
DefaultActionInvocation.java:216)
at
com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(
StaticParametersInterceptor.java:105)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:219)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:218)
at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(
UtilTimerStack.java:455)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(
DefaultActionInvocation.java:216)
at
org.apache.struts2.interceptor.CheckboxInterceptor.intercept(
CheckboxInterceptor.java:83)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:219)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:218)
at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(
UtilTimerStack.java:455)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(
DefaultActionInvocation.java:216)
at
org.apache.struts2.interceptor.FileUploadInterceptor.intercept(
FileUploadInterceptor.java:207)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:219)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:218)
at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(
UtilTimerStack.java:455)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(
DefaultActionInvocation.java:216)
at
com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(
ModelDrivenInterceptor.java:74)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:219)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:218)
at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(
UtilTimerStack.java:455)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(
DefaultActionInvocation.java:216)
at
com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(
ScopedModelDrivenInterceptor.java:127)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:219)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:218)
at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(
UtilTimerStack.java:455)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(
DefaultActionInvocation.java:216)
at
org.apache.struts2.interceptor.ProfilingActivationInterceptor.intercept(
ProfilingActivationInterceptor.java:107)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:219)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:218)
at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(
UtilTimerStack.java:455)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(
DefaultActionInvocation.java:216)
at
org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(
DebuggingInterceptor.java:206)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:219)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:218)
at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(
UtilTimerStack.java:455)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(
DefaultActionInvocation.java:216)
at
com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(
ChainingInterceptor.java:115)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:219)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:218)
at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(
UtilTimerStack.java:455)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(
DefaultActionInvocation.java:216)
at
com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(
I18nInterceptor.java:143)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:219)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:218)
at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(
UtilTimerStack.java:455)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(
DefaultActionInvocation.java:216)
at
com.opensymphony.xwork2.interceptor.PrepareInterceptor.intercept(
PrepareInterceptor.java:115)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:219)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:218)
at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(
UtilTimerStack.java:455)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(
DefaultActionInvocation.java:216)
at
org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(
ServletConfigInterceptor.java:170)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:219)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:218)
at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(
UtilTimerStack.java:455)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(
DefaultActionInvocation.java:216)
at
com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(
AliasInterceptor.java:123)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:219)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:218)
at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(
UtilTimerStack.java:455)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(
DefaultActionInvocation.java:216)
at
com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(
ExceptionMappingInterceptor.java:176)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:219)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(
DefaultActionInvocation.java:218)
at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(
UtilTimerStack.java:455)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(
DefaultActionInvocation.java:216)
at
org.apache.struts2.impl.StrutsActionProxy$1.call(
StrutsActionProxy.java:46)
at
org.apache.struts2.impl.StrutsActionProxy$1.call(
StrutsActionProxy.java:45)
at org.apache.struts2.impl.RequestContextImpl.callInContext(
RequestContextImpl.java:172)
at
org.apache.struts2.impl.StrutsActionProxy.execute(
StrutsActionProxy.java:44)
at
org.apache.struts2.dispatcher.Dispatcher.serviceAction(
Dispatcher.java:507)
at
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(
FilterDispatcher.java:421)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(
ApplicationFilterChain.java:173)
at
org.apache.catalina.core.StandardWrapperValve.invoke(
StandardWrapperValve.java:213)
at
org.apache.catalina.core.StandardContextValve.invoke(
StandardContextValve.java:178)
at
org.apache.catalina.core.StandardHostValve.invoke(
StandardHostValve.java:126)
at
org.apache.catalina.valves.ErrorReportValve.invoke(
ErrorReportValve.java:105)
at
org.apache.catalina.core.StandardEngineValve.invoke(
StandardEngineValve.java:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(
CoyoteAdapter.java:148)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:869)
at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection
(Http11BaseProtocol.java:664)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(
PoolTcpEndpoint.java:527)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(
LeaderFollowerWorkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(
ThreadPool.java:684)
at
java.lang.Thread.run (
Thread.java:595)
Caused by:
javax.naming.NamingException: Could not create resource factory
instance [Root exception is
java.lang.ClassCastException:
org.apache.tomcat.dbcp.dbcp.BasicDataSource]
at
org.apache.naming.factory.ResourceFactory.getObjectInstance(
ResourceFactory.java:101)
at
javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java
:304)
at
org.apache.naming.NamingContext.lookup (
NamingContext.java:792)
at
org.apache.naming.NamingContext.lookup (
NamingContext.java:139)
at
org.apache.naming.NamingContext.lookup (
NamingContext.java:780)
at
org.apache.naming.NamingContext.lookup (
NamingContext.java:139)
at
org.apache.naming.NamingContext.lookup (
NamingContext.java:780)
at
org.apache.naming.NamingContext.lookup (
NamingContext.java:139)
at
org.apache.naming.NamingContext.lookup (
NamingContext.java:780)
at
org.apache.naming.NamingContext.lookup (
NamingContext.java:152)
at
org.apache.naming.SelectorContext.lookup (
SelectorContext.java:136)
at
javax.naming.InitialContext.lookup (
InitialContext.java:351)
at dbtest.HelloWorld.execute(HelloWorld.java:33)
... 115 more
Caused by:
java.lang.ClassCastException:
org.apache.tomcat.dbcp.dbcp.BasicDataSource
at
org.apache.naming.factory.ResourceFactory.getObjectInstance(
ResourceFactory.java:97)
... 127 more
Prem
On 7/23/07, Christopher Schultz <chris@(protected):
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Prem,
>
> Prem Padarath wrote:
> > I am trying to set up a database resource in Tomcat 5.5.20 . I am
> having a
> > problem getting a DataSource object back from a JNDI lookup.
> > (I am getting a "org.apache.tomcat.dbcp.dbcp.BasicDataSource" object
> > returned and throwing an exception - code below)
>
> o.a.t.d.d.BasicDataSource implements javax.sql.DataSource. What's the
> problem?
>
> > My context.xml file (placed in my webapp under META-INF) looks as
> follows:
> >
> > <Context crossContext="true" path="/dbtest" reloadable="true">
>
> Remove the "path" attribute, please. It is unlikely to be causing
> problems, but you should definitely take it out.
>
> > <Resource
> > name="jdbc/MYSQLDS"
> > auth="Container"
> > type="
javax.sql.DataSource"
> > driverClassName="
com.mysql.jdbc.Driver"
> > url="jdbc:mysql://localhost:3306/testdb"/>
>
> This looks fine.
>
> > My web.xml file contains the following:
> >
> > <resource-ref>
> > <description>DB Connection</description>
> > <res-ref-name>jdbc/MYSQLDS</res-ref-name>
> > <res-type>
javax.sql.DataSource</res-type>
> > <res-auth>Container</res-auth>
> > </resource-ref>
>
> I have found that <resource-ref> is superfluous when using a
> context-defined DataSource. I'm not sure if that's the way it's supposed
> to be, but I have found that this doesn't matter.
>
> > And the snippet/code I am using to acquire a datasource is as follows:
> >
> > DataSource ds = null;
> > ....
> > ds = (DataSource)initContext.lookup("java:/comp/env/jdbc/MYSQLDS");
>
> Looks good to me.
>
> > When the app is run, I get back
> >
> >
java.lang.Exception: org.apache.tomcat.dbcp.dbcp.BasicDataSource
> > dbtest.HelloWorld.execute(HelloWorld.java:53)
> >
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> >
sun.reflect.NativeMethodAccessorImpl.invoke(
> > NativeMethodAccessorImpl.java:39)
> >
sun.reflect.DelegatingMethodAccessorImpl.invoke (
> > DelegatingMethodAccessorImpl.java:25)
> >
java.lang.reflect.Method.invoke (
Method.java:585)
>
> Can you give us the full stack trace? All I see is reflection code in
> there. Is there a message?
java.lang.Exception is just a little less
> useful than getting a java.lang.Throwable.
>
> - -chris
> -----BEGIN PGP SIGNATURE-----
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>
> iD8DBQFGpQTx9CaO5/Lv0PARAhfCAJ9B3Hkd1lra9+Dd9+4ysqu2w90ZfgCeOlq3
> I/uYB+efFUY6lLrnYA38Zf0=
> =6foU
> -----END PGP SIGNATURE-----
>
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