now is ok
i am delete 2 .jar from WEB-INF/lib
the jdbc extension
tanks :)
Alkessandro
----- Original Message -----
From: "Craig R. McClanahan" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
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 <[EMAIL PROTECTED]>
> > Reply-To: [EMAIL PROTECTED]
> > To: [EMAIL PROTECTED]
> > 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 ($JAVA_HOME/jre/lib/ext)? That would cause problems
> like this -- the same sort of problem that causes "Class foo is not a
> servlet" errors if you have servlet.jar there.
>
> > Alessandro
>
> Craig McClanahan
>
> > ----- Original Message -----
> > From: "Will Stranathan" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Wednesday, October 03, 2001 3:04 PM
> > Subject: Re: ClassCastException
> >
> >
> > > Can we see the appropriate parts of server.xml and web.xml?
> > >
> > > Will Stranathan
> > >
> > > Alessandro Pizzolotto wrote:
> > >
> > > > this code
> > > >
> > > > javax.naming.Context ctx = new javax.naming.InitialContext();
> > > > javax.naming.Context cto =
> > (javax.naming.Context)ctx.lookup("java:/comp/env");
> > > > javax.sql.DataSource ds =
> > (javax.sql.DataSource)cto.lookup("jdbc/domus");
> > > >
> > > > produce this error
> > > >
> > > > java.lang.ClassCastException: tyrex.jdbc.xa.EnabledDataSource
> > > > at org.apache.jsp.ricerca3$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
> > > >
> > > >
> > >
> > >
> > >
> >
> >
>
>
