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
> > >
> > >
> >
> >
> >
>
>
