Here is a complete stack trace of the exception
javax.naming.NamingException: Cannot create resource instance
at
org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.
java:167)
at
javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:311)
at org.apache.naming.NamingContext.lookup(NamingContext.java:834)
at org.apache.naming.NamingContext.lookup(NamingContext.java:181)
at org.apache.naming.NamingContext.lookup(NamingContext.java:822)
at org.apache.naming.NamingContext.lookup(NamingContext.java:181)
at org.apache.naming.NamingContext.lookup(NamingContext.java:822)
at org.apache.naming.NamingContext.lookup(NamingContext.java:181)
at org.apache.naming.NamingContext.lookup(NamingContext.java:822)
at org.apache.naming.NamingContext.lookup(NamingContext.java:194)
at
org.apache.naming.SelectorContext.lookup(SelectorContext.java:183)
at javax.naming.InitialContext.lookup(InitialContext.java:354)
at wwxchange.utility.DBPoolAccess.<init>(DBPoolAccess.java:28)
at wwxchange.beans.UserAcctBean.loadProfile(UserAcctBean.java:103)
at org.apache.jsp.Login$jsp._jspService(Login$jsp.java:149)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.ja
va:201)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:247)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:193)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:243)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:190)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase
.java:531)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
at
org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:2
46)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180
)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.
java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170
)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:174)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:
1027)
at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125
)
at java.lang.Thread.run(Thread.java:536)
----- Original Message -----
From: "Nathan McMinn" <[EMAIL PROTECTED]>
To: "Tomcat Users List" <[EMAIL PROTECTED]>
Sent: Wednesday, January 15, 2003 3:19 PM
Subject: Re: JDBC Connection pooling
> That is where the tyrex jars are, problem is, I don't use HypersonicSQL,
> which is the jar file tyrex is looking for. If I put the hypersonicSQL
jars
> there, it attempts to connect to a non-existent database. I found what
was
> causing that problem, and I have a new one (Progress!!). Now whenever I
> attempt to get a connection from the pool, I get
>
> javax.naming.NamingException: Cannot create resource instance
>
> pretty vague, isn't it?
>
> Below is the XML from the relevant server and web.xml files. Maybe this
> will help.
>
> I have this chunk of xml in the web.xml file for the application
>
> <resource-ref>
> <description>wwxchange</description>
> <res-ref-name>jdbc/wwxchange</res-ref-name>
> <res-type>javax.sql.DataSource</res-type>
> <res-auth>Container</res-auth>
> </resource-ref>
>
> which is in turn, described by this context
>
> <Context path="/wwxchange" docBase="wwxchange"
> debug="5" reloadable="true" crossContext="true">
>
> <Logger className="org.apache.catalina.logger.FileLogger"
> prefix="localhost_DBTest_log." suffix=".txt"
> timestamp="true"/>
>
> <Resource name="jdbc/wwxchange" scope="Shareable"
> type="javax.sql.DataSource"/>
> <ResourceParams name="jdbc/wwxchange">
>
> <parameter>
> <name>factory</name>
> <value>org.apache.commons.dbcp.BasicDataSourceFactory</value>
> </parameter>
> <parameter>
> <name>url</name>
> <value>jdbc:odbc:www_ship_2</value>
> </parameter>
> <parameter>
> <name>maxActive</name>
> <value>10</value>
> </parameter>
> <parameter>
> <name>maxWait</name>
> <value>5000</value>
> </parameter>
> <parameter>
> <name>driverClassName</name>
> <value>sun.jdbc.odbc.JdbcOdbcDriver</value>
> </parameter>
> <parameter>
> <name>maxIdle</name>
> <value>2</value>
> </parameter>
> </ResourceParams>
>
> </Context>
> ----- Original Message -----
> From: "David Boyer" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Wednesday, January 15, 2003 3:01 PM
> Subject: Re: JDBC Connection pooling
>
>
> > The error you mention suggests Tyrex cannot find the hsql jdbc driver.
> > The Class Loader How-To would suggest putting the hsql jar(s) in
> > $TOMCAT_HOME/common/lib to make them available to both Tomcat's JNDI
> > provider and your web applications. Isn't that where you have the Tyrex
> > jars?
> >
> > >>> [EMAIL PROTECTED] 01/15/03 02:44PM >>>
> > Any suggestions on what in particular to look for? I know the
> > classloader
> > that is spitting up on itself is the webapp classloader, because the
> > exception doesn't occur until I attempt to access this application. Is
> > that
> > correct?
> >
> > ----- Original Message -----
> > From: "David Boyer" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Wednesday, January 15, 2003 2:27 PM
> > Subject: Re: JDBC Connection pooling
> >
> >
> > > For this particular error, the Tomcat classloader documentation
> > would
> > > probably be your best bet.
> > >
> > > >>> [EMAIL PROTECTED] 01/15/03 02:24PM >>>
> > > When trying to get a connection pool set up, tomcat spits this
> > > exception
> > > back out. Nowhere in the code do I reference this class. Can
> > anyone
> > > point
> > > me to a good HOWTO on connection pooling in tomcat 4.0.6?
> > >
> > > TyrexDataSourceFactory: Cannot create DataSource, Exception
> > > java.lang.ClassNotFoundException: org.hsql.jdbcDriver
> > >
> > >
> > >
> > > --
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> > > <mailto:[EMAIL PROTECTED]>
> > >
> > >
> >
> >
> >
> > --
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> >
> >
> >
>
>
>
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