i don't know what's in 'instance', i'm just guessing it's not a DynaBean because of the exception i'm getting.
i have discovered that if, instead of renaming the forms, i change the name of the form in the action mapping, validation works.
so now i have a form named "foo". :(
not very elegant. my php-centric coworkers will mock me. i'll be the laughingstock of the company.
-- mike
Adam Hardy wrote:
I missed your second post. My mailer didn't thread it. So what is struts putting in 'instance' if it's not a dynabean?
I don't suppose it would be so simple as the wrong form specified in the action mapping?
Michael Muller wrote:
Here's the struts source that's throwing the exception:
// Can we recycle the existing form bean instance (if there is one)?
if (instance != null) {
if (config.getDynamic()) {
String className = ((DynaBean) instance).getDynaClass().getName();
if (className.equals(config.getName())) {
Apparently, "instance" is not a DynaBean. It would appear that something other than a DynaBean is being stored where struts expects to find a DynaBean.
Does this help anyone figure out what I'm doing wrong?
-- Mike
Adam Hardy wrote:
I got ClassCast exceptions, but not necessarily this one, because I was using field class types other than Strings in my DynaActionForm. DynaValidator will only validate strings, btw.
Adam
Michael Muller wrote:
I've got the validation framework working for me using my own form bean which is derived from ValidatorForm. I changed the form bean to be a DynaValidatorForm, and now I get a ClassCastException, the guts of which is appended below.
What gives? Am I using the wrong validator form class? Did I neglect to make some other configuration change?
I'm using Tomcat 4.1, Struts 1.1 final, and jdk 1.4.1.
-- Mike
java.lang.ClassCastException
at org.apache.struts.util.RequestUtils.createActionForm(RequestUtils.java:783)
at org.apache.struts.action.RequestProcessor.processActionForm(RequestProcessor.java:364)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:253)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
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:260)
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 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:2415)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline$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:432)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:386)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:534)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:530)
at java.lang.Thread.run(Thread.java:536)
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