Re: WebLogic

Jason,

It looks like your cce falls in the category of "the connection object
returned from a connection request is cast as a Connection class".

We fixed this in 8.1 (which hasn't been released yet but expect a public
Beta soon). Unfortunately, you'll need to wait for this fix until then.
Sorry :-(

Deb




> > Sorry for the delay folks.
> >
> > Ok, here's the scoop. When a connection request is
> > made, WebLogic Server
> > returns to the client (via the resource adapter) a
> > Proxy object that wraps
> > the connection object. WebLogic Server uses this
> > proxy to provide features
> > that assist applications using the WebLogic Server
> > implementation of the
> > J2EE Connector Architecture. These features include
> > (1) connection leak
> > detection capabilities and (2) late XAResource
> > enlistment when a connection
> > request is made before starting a global transaction
> > that uses that
> > connection. This proxy wrapper was designed for
> > reasons similar to the
> > proxy that is returned from createEndPoint()
> > discussed in the Connector 1.5
> > spec.
> >
> > If the connection object returned from a connection
> > request is cast as a
> > Connection class, a ClassCastException can occur.
> > This exception is caused
> > by either (1) the resource adapter doing the cast or
> > (2) the client doing
> > the cast during a connection request.
> >
> > In the next version of WLS - WebLogic Server 8.1 -
> > an attempt is made to
> > detect the ClassCastException caused by the resource
> > adapter (case (1),
> > above). If the server detects that this cast is
> > failing, it turns off the
> > proxy wrapper feature and proceeds by returning the
> > connection object
> > during a connection request (unwrapped). The server
> > logs a warning message
> > to indicate that the proxy wrapper has been turned
> > off.
> >
> > If the client is doing the cast and getting a
> > ClassCastException OR for
> > pre-8.1 WLS, the customer (client) code can be
> > modified as follows:
> >
> > Example: The client is casting the connection object
> > to MyConnection
> >
> > 1) Instead of MyConnection being a class that
> > implements the resource
> > adapter's Connection interface, modify it to be an
> > interface that extends
> > Connection.
> >
> > 2) Implement a MyConnectionImpl class that
> > implements the MyConnection
> > interface.
>
>Deb,
>
>Thanks for taking the time to reply both to the group
>and to my personal email.  I've attempted your
>suggestions but I'm still having the same problem.
>Maybe I misinterpreted something in your suggestion.
>
>Before I explain in detail, what I've done I wanted to
>post my stack trace one more time.  Here it is:
>
>java.lang.ClassCastException:
>javax.naming.CompositeName
>         at
>weblogic.connector.common.internal.SecurityContext.list(SecurityContext.java:459)
>         at
>weblogic.connector.common.internal.SecurityContext.list(SecurityContext.java:443)
>         at
>weblogic.connector.common.internal.SecurityContext.checkResourceReference(SecurityContext.java:428)
>         at
>weblogic.connector.common.internal.SecurityContext.initSecurityContext(SecurityContext.java:98)
>         at
>weblogic.connector.common.internal.SecurityContext.<init>(SecurityContext.java:77)
>         at
>weblogic.connector.common.internal.ConnectionPool.getConnection(ConnectionPool.java:1704)
>         at
>weblogic.connector.common.internal.ConnectionPoolManager.getConnection(ConnectionPoolManager.java:190)
>         at
>weblogic.connector.common.internal.ConnectionManagerImpl.allocateConnection(ConnectionManagerImpl.java:25)
>         at
>com.mycompany.resource.impl.ConnectionFactoryImpl.getConnection(ConnectionFactoryImpl.java:183)
>         at jsp_servlet.__main._jspService(__main.java:118)
>         at
>weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
>         at
>weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:1058)
>         at
>weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:401)
>         at
>weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:306)
>         at
>weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:5445)
>         at
>weblogic.security.service.SecurityServiceManager.runAs(SecurityServiceManager.java:780)
>         at
>weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3105)
>         at
>weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2588)
>         at
>weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:213)
>         at
>weblogic.kernel.ExecuteThread.run(ExecuteThread.java:189)
>
>The reason I'm reposting this is to point out that the
>cce occurs from within this line of my
>ConnectionFactoryImpl:
>
>    Connection conn = (Connection)
>m_cm.allocateConnection(m_mcf, info);
>
>It doesn't seem as though I've even done a cast yet!
>Do you still think that your diagnosis is correct?
>Thanks.
>
>-Jason
>
>
>
>
>
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