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Posted to dev@tomcat.apache.org by Alessandro Pizzolotto <al...@extraweb.it> on 2001/10/03 11:34:47 UTC
ClassCastException
this code
javax.naming.Context ctx = new javax.naming.InitialContext();
javax.naming.Context cto = (javax.naming.Context)ctx.lookup("java:/comp/env");
javax.sql.DataSource ds = (javax.sql.DataSource)cto.lookup("jdbc/domus");
produce this error
java.lang.ClassCastException: tyrex.jdbc.xa.EnabledDataSource
at org.apache.jsp.ricerca3$jsp._jspService(ricerca3$jsp.java:74)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:1264)
at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java: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:1264)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
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.java:215)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
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:2366)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
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:163)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
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:1005)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1098)
at java.lang.Thread.run(Thread.java:484)
the code not get the cast in DataSource
why ?
tanks
Alessadro
Re: ClassCastException
Posted by Alessandro Pizzolotto <al...@extraweb.it>.
sure :)
WEB.XML
################################################################
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<resource-ref>
<res-ref-name>jdbc/domus</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
</web-app>
#############################################################
SERVER.XML
##############################################################à
<Context path="/domus" docBase="domus" debug="0" reloadable="true">
<Resource name="jdbc/domus" auth="Container"
type="javax.sql.DataSource"/>
<ResourceParams name="jdbc/domus">
<parameter>
<name>user</name>
<value>user</value>
</parameter>
<parameter>
<name>password</name>
<value>password</value>
</parameter>
<parameter>
<name>driverClassName</name>
<value>weblogic.jdbc.mssqlserver4.Driver</value>
</parameter>
<parameter>
<name>driverName</name>
<value>jdbc:weblogic:mssqlserver4:domus@localhost:1433</value>
</parameter>
</ResourceParams>
</Context>
##################################################
i tink that this part is correct ??
----- Original Message -----
From: "Will Stranathan" <wi...@thestranathans.com>
To: <to...@jakarta.apache.org>
Sent: Wednesday, October 03, 2001 3:04 PM
Subject: Re: ClassCastException
> Can we see the appropriate parts of server.xml and web.xml?
>
> Will Stranathan
>
> Alessandro Pizzolotto wrote:
>
> > this code
> >
> > javax.naming.Context ctx = new javax.naming.InitialContext();
> > javax.naming.Context cto =
(javax.naming.Context)ctx.lookup("java:/comp/env");
> > javax.sql.DataSource ds =
(javax.sql.DataSource)cto.lookup("jdbc/domus");
> >
> > produce this error
> >
> > java.lang.ClassCastException: tyrex.jdbc.xa.EnabledDataSource
> > at org.apache.jsp.ricerca3$jsp._jspService(ricerca3$jsp.java:74)
> > at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
> > at javax.servlet.http.HttpServlet.service(HttpServlet.java:1264)
> > at
org.apache.jasper.servlet.JspServlet$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:1264)
> > 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:215)
> > 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.StandardContext.invoke(StandardContext.java:2366)
> > at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164
)
> > at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
> > at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)
> > 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
:163)
> > 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:
1005)
> > at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1098
)
> > at java.lang.Thread.run(Thread.java:484)
> >
> > the code not get the cast in DataSource
> > why ?
> > tanks
> > Alessadro
> >
> >
>
>
>
Re: ClassCastException
Posted by Alessandro Pizzolotto <al...@extraweb.it>.
now is ok
i am delete 2 .jar from WEB-INF/lib
the jdbc extension
tanks :)
Alkessandro
----- Original Message -----
From: "Craig R. McClanahan" <cr...@apache.org>
To: <to...@jakarta.apache.org>
Sent: Wednesday, October 03, 2001 6:19 PM
Subject: Re: ClassCastException
>
>
> On Wed, 3 Oct 2001, Alessandro Pizzolotto wrote:
>
> > Date: Wed, 3 Oct 2001 17:10:37 +0200
> > From: Alessandro Pizzolotto <al...@extraweb.it>
> > Reply-To: tomcat-dev@jakarta.apache.org
> > To: tomcat-dev@jakarta.apache.org
> > Subject: Re: ClassCastException
> >
> > hehehe
> > if i use this class:
> > tyrex.jdbc.xa.EnabledDataSource
> > instead
> > javax.sql.DataSource
> > the program works fine
> > the problem is that EnableDataSource implements javax.sql.DataSource but
i
> > can't cast javax.sql.DataSource.
> > why ???
> >
>
> Would you happen to have a copy of jdbc2_0-stdext.jar in your system
> extensions directory ($JAVA_HOME/jre/lib/ext)? That would cause problems
> like this -- the same sort of problem that causes "Class foo is not a
> servlet" errors if you have servlet.jar there.
>
> > Alessandro
>
> Craig McClanahan
>
> > ----- Original Message -----
> > From: "Will Stranathan" <wi...@thestranathans.com>
> > To: <to...@jakarta.apache.org>
> > Sent: Wednesday, October 03, 2001 3:04 PM
> > Subject: Re: ClassCastException
> >
> >
> > > Can we see the appropriate parts of server.xml and web.xml?
> > >
> > > Will Stranathan
> > >
> > > Alessandro Pizzolotto wrote:
> > >
> > > > this code
> > > >
> > > > javax.naming.Context ctx = new javax.naming.InitialContext();
> > > > javax.naming.Context cto =
> > (javax.naming.Context)ctx.lookup("java:/comp/env");
> > > > javax.sql.DataSource ds =
> > (javax.sql.DataSource)cto.lookup("jdbc/domus");
> > > >
> > > > produce this error
> > > >
> > > > java.lang.ClassCastException: tyrex.jdbc.xa.EnabledDataSource
> > > > at org.apache.jsp.ricerca3$jsp._jspService(ricerca3$jsp.java:74)
> > > > at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
> > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:1264)
> > > > at
> >
org.apache.jasper.servlet.JspServlet$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:1264)
> > > > 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:215)
> > > > 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.StandardContext.invoke(StandardContext.java:2366)
> > > > at
> >
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164
> > )
> > > > at
> >
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
> > 66)
> > > > at
> >
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)
> > > > 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
> > :163)
> > > > 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:
> > 1005)
> > > > at
> >
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1098
> > )
> > > > at java.lang.Thread.run(Thread.java:484)
> > > >
> > > > the code not get the cast in DataSource
> > > > why ?
> > > > tanks
> > > > Alessadro
> > > >
> > > >
> > >
> > >
> > >
> >
> >
>
>
RE: ClassCastException
Posted by Kevin Jones <ke...@develop.com>.
I had exactly this problem; but I had jdbc2_0-stdext.jar not in the
jre/lib/ext but in my webapp/web-inf/lib directory. Putting
jdbc2_0-stdext.jar in common/lib along with the tyrex files solved the
problem (classloaders, you gotta love 'em)
Kevin Jones
Developmentor
www.develop.com
> -----Original Message-----
> From: craigmcc@localhost [mailto:craigmcc@localhost]On Behalf Of Craig
> R. McClanahan
> Sent: 03 October 2001 17:20
> To: tomcat-dev@jakarta.apache.org
> Subject: Re: ClassCastException
>
>
>
>
> On Wed, 3 Oct 2001, Alessandro Pizzolotto wrote:
>
> > Date: Wed, 3 Oct 2001 17:10:37 +0200
> > From: Alessandro Pizzolotto <al...@extraweb.it>
> > Reply-To: tomcat-dev@jakarta.apache.org
> > To: tomcat-dev@jakarta.apache.org
> > Subject: Re: ClassCastException
> >
> > hehehe
> > if i use this class:
> > tyrex.jdbc.xa.EnabledDataSource
> > instead
> > javax.sql.DataSource
> > the program works fine
> > the problem is that EnableDataSource implements
> javax.sql.DataSource but i
> > can't cast javax.sql.DataSource.
> > why ???
> >
>
> Would you happen to have a copy of jdbc2_0-stdext.jar in your system
> extensions directory ($JAVA_HOME/jre/lib/ext)? That would cause problems
> like this -- the same sort of problem that causes "Class foo is not a
> servlet" errors if you have servlet.jar there.
>
> > Alessandro
>
> Craig McClanahan
>
> > ----- Original Message -----
> > From: "Will Stranathan" <wi...@thestranathans.com>
> > To: <to...@jakarta.apache.org>
> > Sent: Wednesday, October 03, 2001 3:04 PM
> > Subject: Re: ClassCastException
> >
> >
> > > Can we see the appropriate parts of server.xml and web.xml?
> > >
> > > Will Stranathan
> > >
> > > Alessandro Pizzolotto wrote:
> > >
> > > > this code
> > > >
> > > > javax.naming.Context ctx = new javax.naming.InitialContext();
> > > > javax.naming.Context cto =
> > (javax.naming.Context)ctx.lookup("java:/comp/env");
> > > > javax.sql.DataSource ds =
> > (javax.sql.DataSource)cto.lookup("jdbc/domus");
> > > >
> > > > produce this error
> > > >
> > > > java.lang.ClassCastException: tyrex.jdbc.xa.EnabledDataSource
> > > > at org.apache.jsp.ricerca3$jsp._jspService(ricerca3$jsp.java:74)
> > > > at
> org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
> > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:1264)
> > > > at
> >
> org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(Jsp
> Servlet.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:1264)
> > > > at
> >
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(A
> pplication
> > FilterChain.java:247)
> > > > at
> >
> org.apache.catalina.core.ApplicationFilterChain.doFilter(Applicati
> onFilterCh
> > ain.java:193)
> > > > at
> >
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapp
> erValve.ja
> > va:243)
> > > > at
> >
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
> ine.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(StandardConte
> xtValve.ja
> > va:215)
> > > > at
> >
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
> ine.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.StandardContext.invoke(StandardContext.java:2366)
> > > > at
> >
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValv
> e.java:164
> > )
> > > > at
> >
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
> ine.java:5
> > 66)
> > > > at
> >
> org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)
> > > > at
> >
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
> ine.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(StandardEngine
> Valve.java
> > :163)
> > > > at
> >
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
> ine.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(HttpProce
> ssor.java:
> > 1005)
> > > > at
> >
> org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor
> .java:1098
> > )
> > > > at java.lang.Thread.run(Thread.java:484)
> > > >
> > > > the code not get the cast in DataSource
> > > > why ?
> > > > tanks
> > > > Alessadro
> > > >
> > > >
> > >
> > >
> > >
> >
> >
>
Re: ClassCastException
Posted by "Craig R. McClanahan" <cr...@apache.org>.
On Wed, 3 Oct 2001, Alessandro Pizzolotto wrote:
> Date: Wed, 3 Oct 2001 17:10:37 +0200
> From: Alessandro Pizzolotto <al...@extraweb.it>
> Reply-To: tomcat-dev@jakarta.apache.org
> To: tomcat-dev@jakarta.apache.org
> Subject: Re: ClassCastException
>
> hehehe
> if i use this class:
> tyrex.jdbc.xa.EnabledDataSource
> instead
> javax.sql.DataSource
> the program works fine
> the problem is that EnableDataSource implements javax.sql.DataSource but i
> can't cast javax.sql.DataSource.
> why ???
>
Would you happen to have a copy of jdbc2_0-stdext.jar in your system
extensions directory ($JAVA_HOME/jre/lib/ext)? That would cause problems
like this -- the same sort of problem that causes "Class foo is not a
servlet" errors if you have servlet.jar there.
> Alessandro
Craig McClanahan
> ----- Original Message -----
> From: "Will Stranathan" <wi...@thestranathans.com>
> To: <to...@jakarta.apache.org>
> Sent: Wednesday, October 03, 2001 3:04 PM
> Subject: Re: ClassCastException
>
>
> > Can we see the appropriate parts of server.xml and web.xml?
> >
> > Will Stranathan
> >
> > Alessandro Pizzolotto wrote:
> >
> > > this code
> > >
> > > javax.naming.Context ctx = new javax.naming.InitialContext();
> > > javax.naming.Context cto =
> (javax.naming.Context)ctx.lookup("java:/comp/env");
> > > javax.sql.DataSource ds =
> (javax.sql.DataSource)cto.lookup("jdbc/domus");
> > >
> > > produce this error
> > >
> > > java.lang.ClassCastException: tyrex.jdbc.xa.EnabledDataSource
> > > at org.apache.jsp.ricerca3$jsp._jspService(ricerca3$jsp.java:74)
> > > at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
> > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:1264)
> > > at
> org.apache.jasper.servlet.JspServlet$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:1264)
> > > 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:215)
> > > 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.StandardContext.invoke(StandardContext.java:2366)
> > > at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164
> )
> > > at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
> 66)
> > > at
> org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)
> > > 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
> :163)
> > > 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:
> 1005)
> > > at
> org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1098
> )
> > > at java.lang.Thread.run(Thread.java:484)
> > >
> > > the code not get the cast in DataSource
> > > why ?
> > > tanks
> > > Alessadro
> > >
> > >
> >
> >
> >
>
>
Re: ClassCastException
Posted by Alessandro Pizzolotto <al...@extraweb.it>.
hehehe
if i use this class:
tyrex.jdbc.xa.EnabledDataSource
instead
javax.sql.DataSource
the program works fine
the problem is that EnableDataSource implements javax.sql.DataSource but i
can't cast javax.sql.DataSource.
why ???
Alessandro
----- Original Message -----
From: "Will Stranathan" <wi...@thestranathans.com>
To: <to...@jakarta.apache.org>
Sent: Wednesday, October 03, 2001 3:04 PM
Subject: Re: ClassCastException
> Can we see the appropriate parts of server.xml and web.xml?
>
> Will Stranathan
>
> Alessandro Pizzolotto wrote:
>
> > this code
> >
> > javax.naming.Context ctx = new javax.naming.InitialContext();
> > javax.naming.Context cto =
(javax.naming.Context)ctx.lookup("java:/comp/env");
> > javax.sql.DataSource ds =
(javax.sql.DataSource)cto.lookup("jdbc/domus");
> >
> > produce this error
> >
> > java.lang.ClassCastException: tyrex.jdbc.xa.EnabledDataSource
> > at org.apache.jsp.ricerca3$jsp._jspService(ricerca3$jsp.java:74)
> > at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
> > at javax.servlet.http.HttpServlet.service(HttpServlet.java:1264)
> > 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:1264)
> > 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:215)
> > 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.StandardContext.invoke(StandardContext.java:2366)
> > at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164
)
> > at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
> > at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)
> > 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
:163)
> > 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:
1005)
> > at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1098
)
> > at java.lang.Thread.run(Thread.java:484)
> >
> > the code not get the cast in DataSource
> > why ?
> > tanks
> > Alessadro
> >
> >
>
>
>
Re: ClassCastException
Posted by Will Stranathan <wi...@thestranathans.com>.
Can we see the appropriate parts of server.xml and web.xml?
Will Stranathan
Alessandro Pizzolotto wrote:
> this code
>
> javax.naming.Context ctx = new javax.naming.InitialContext();
> javax.naming.Context cto = (javax.naming.Context)ctx.lookup("java:/comp/env");
> javax.sql.DataSource ds = (javax.sql.DataSource)cto.lookup("jdbc/domus");
>
> produce this error
>
> java.lang.ClassCastException: tyrex.jdbc.xa.EnabledDataSource
> at org.apache.jsp.ricerca3$jsp._jspService(ricerca3$jsp.java:74)
> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:1264)
> at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java: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:1264)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
> at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
> 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.java:215)
> at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
> 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:2366)
> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
> at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
> at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)
> at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
> 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:163)
> at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
> 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:1005)
> at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1098)
> at java.lang.Thread.run(Thread.java:484)
>
> the code not get the cast in DataSource
> why ?
> tanks
> Alessadro
>
>