MapStackResolver.buildParameters crashes

[Horst Rutter]

In the tutorial sitemap:   <map:action-sets>   <map:action-set name="process">    <map:act type="form" action="Create Department">      <map:parameter name="validate-set" value="add"/>      <map:act type="dbAdd"/>    </map:act>  etc..   ..can't get processed because the MapStackResolver fails to resolve "validate-set" := "add"   WARN    (2002-04-29) 10:07.08:999   [sitemap](/ba/tutorial/create-dept.html) HttpProcessor[8080][5]/PipelineNode: Error while processing pipeline at file:/C:/eclipseworkspace/test/webapp/tutorial/sitemap.xmap:84:17 java.lang.ClassCastException: java.lang.String  at org.apache.cocoon.components.treeprocessor.MapStackResolver.buildParameters(MapStackResolver.java:160)  at org.apache.cocoon.components.treeprocessor.sitemap.ActionSetNode.call(ActionSetNode.java:158)  at org.apache.cocoon.components.treeprocessor.sitemap.ActSetNode.invoke(ActSetNode.java:107)  at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:85)  at org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:159)  at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:109)  at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:140)  at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:109)  at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:144)  at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:318)  at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:289)  at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:131)  at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:85)  at org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:159)  at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:109)  at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:140)  at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:109)  at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:144)  at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:318)  at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:289)  at org.apache.cocoon.Cocoon.process(Cocoon.java:588)  at org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1002)  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:243)  at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)  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.java:190) ...     Horst