Tomcat Manager App with Struts 1.1b2 - ClassCastException?

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Subject: Tomcat Manager App with Struts 1.1b2 - ClassCastException?
From: "Andrej Sobkowski" <as...@clamart.oilfield.slb.com>
 ===
All,

I'm using Struts 1.1b1 with Tomcat 4.0.4, using the "manager" app to
dynamically stop/start my webapp. Everything works very well but I now need
a few fixes from Struts 1.1b2 (note the '2'). I've therefore downloaded the
b2 JAR files and copied them in my WEB-INF/lib directory (where they are
supposed to be picked up by a separate class loader, if I'm not mistaken).

When I re-deploy the webapp using the "manager", I get a ClassCastException
(reported below) from Tomcat. This doesn't happen if I restart the server
(but I lose the dynamic deployment). I believe that it's a problem with the
two versions of the struts.jar: one for the "manager" app and the new Struts
1.1b2 used by my webapp.

Is this a known bug? Am I doing something wrong? Would migrating to 4.1.x
solve the issue (I'll have to do it sometimes anyways)?

Any help is appreciated.

Thanks.

Andrej


PS. I haven't found an answer to this problem anywhere. Please send me a
link to the "solution message" if I've missed it.

java.lang.ClassCastException: org.apache.struts.action.RequestProcessor
	at
org.apache.struts.action.ActionServlet.getRequestProcessor(ActionServlet.jav
a:803)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1292)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:492)
	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(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:190)
	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:2347)
	at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180
)
	at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
	at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.
java:170)
	at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
	at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170
)
	at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
	at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
	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
:174)
	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:
1027)
	at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125
)
	at java.lang.Thread.run(Thread.java:484)





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