Java.lang.ClassCastException: ...ViewImpl after tomcat stop/start

Question

All:
After a tomcat restart (via the manager app /manager/stop?path=/<app> and /manager/start?path=/<app>) we are receiving a CallCastException on a BC4J view object. (Full stack trace beloew)
We had previously fixed this by copying:
bc4jmtejb.jar
bc4jct.jar
bc4jctejb.jar
bc4jmt.jar
From the <tomcat>/shared/lib directory into the <tomcat>/webapps/<app>/WEB-INF/lib directory. The problem is now that this causes grief with another view object that is used within a tiles environment.
We have strong desires to be able to stop and start the webapplication via the tomcat manager application, but these ClassCasts are causing issues.
Any thoughts/resolutions?
-- James
Full stack trace below:
java.lang.ClassCastException: ...ViewImpl
     at ... .ViewReportAction.execute(ViewReportAction.java:75)
     at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
     at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
     at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
     at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     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:256)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at ca.acol.auth.ACOLAuthenticator.invoke(Unknown Source)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2416)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:601)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
     at java.lang.Thread.run(Thread.java:479)

Answer 1

Still a little confused. Sorry, that's just me.
If I want to use a setter/getter from a VO that is specific to the application. Say getDescription from BookVO, I would have to type cast a VO that is returned through a call to getApplicationModule():
import com.company.test.model.books.common.BooksAM;
import com.company.test.model.books.common.BooksVO;
import com.company.test.model.books.common.BooksVORow;
BindingContext myctx = actionContext.getBindingContext();
DCDataControl mydc = myctx.findDataControl("BooksAMDataControl");
BooksAM = (BooksAM) mydc.getApplicationModule();
BooksVO bkVO = (BooksVO) myAM.findViewObject("BooksVO");
BooksVORow bk = (BooksVORow) bkVO.first();
String duh = bk.getDescription();
Is this correct and compliant with the best practice to do a remote deploy? Or can I use the Impl classes here to do the type casting and declarations. (Perhaps my understanding of Java/J2EE is about to improve.)
If this is correct then I have not been able to get to the ...common... package any other way than what I described.
Thanks for your help.