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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=12412

Compile error when tag file defined in XML syntax

           Summary: Compile error when tag file defined in XML syntax
           Product: Tomcat 5
           Version: Unknown
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Major
          Priority: Other
         Component: Jasper2
        AssignedTo: [EMAIL PROTECTED]
        ReportedBy: [EMAIL PROTECTED]


If a tag file is defined using an XML syntax an exception as mentioned below is
thrown. If the same tag file is defined in JSP page syntax it works fine.
========================================================================


ype Exception report

message

description The server encountered an internal error () that prevented it from
fulfilling this request.

exception

org.apache.jasper.JasperException: Unable to compile class for JSP
        at 
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:559)
        at
org.apache.jasper.servlet.JspServletWrapper.loadTagFile(JspServletWrapper.java:208)
        at 
org.apache.jasper.compiler.TagFileProcessor.loadTagFile(TagFileProcessor.java:356)
        at 
org.apache.jasper.compiler.TagFileProcessor.access$000(TagFileProcessor.java:83)
        at
org.apache.jasper.compiler.TagFileProcessor$TagFileLoaderVisitor.visit(TagFileProcessor.java:379)
        at org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1021)
        at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:1543)
        at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:1585)
        at org.apache.jasper.compiler.Node$Visitor.visit(Node.java:1591)
        at org.apache.jasper.compiler.Node$Root.accept(Node.java:334)
        at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:1543)
        at
org.apache.jasper.compiler.TagFileProcessor.loadTagFiles(TagFileProcessor.java:398)
        at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:271)
        at org.apache.jasper.compiler.Compiler.compile(Compiler.java:381)
        at 
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:553)
        at 
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:270)
        at 


org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:289)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:240)
        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.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
        at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2505)
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
        at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
        at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:171)
        at
org.apache.catalina.core.StandardPipeline$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$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
        at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:223)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:405)
        at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:380)
        at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:508)
        at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:533)
        at java.lang.Thread.run(Thread.java:536)

root cause

java.lang.ClassCastException: java.lang.Object
        at javax.servlet.jsp.tagext.TagData.getAttributeString(TagData.java:168)
        at 
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:948)
        at org.apache.jasper.compiler.Node$InvokeAction.accept(Node.java:525)
        at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:1543)
        at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:1585)
        at 
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:433)
        at org.apache.jasper.compiler.Node$JspRoot.accept(Node.java:364)
        at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:1543)
        at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:1585)
        at 
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:433)
        at org.apache.jasper.compiler.Node$JspRoot.accept(Node.java:364)
        at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:1543)
        at org.apache.jasper.compiler.Validator.validate(Validator.java:1104)
        at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:260)
        at org.apache.jasper.compiler.Compiler.compile(Compiler.java:381)
        at 
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:553)
        at
org.apache.jasper.servlet.JspServletWrapper.loadTagFile(JspServletWrapper.java:208)
        at 
org.apache.jasper.compiler.TagFileProcessor.loadTagFile(TagFileProcessor.java:356)
        at 
org.apache.jasper.compiler.TagFileProcessor.access$000(TagFileProcessor.java:83)
        at
org.apache.jasper.compiler.TagFileProcessor$TagFileLoaderVisitor.visit(TagFileProcessor.java:379)
        at org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1021)
        at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:1543)
        at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:1585)
        at org.apache.jasper.compiler.Node$Visitor.visit(Node.java:1591)
        at org.apache.jasper.compiler.Node$Root.accept(Node.java:334)
        at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:1543)
        at
org.apache.jasper.compiler.TagFileProcessor.loadTagFiles(TagFileProcessor.java:398)
        at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:271)
        at org.apache.jasper.compiler.Compiler.compile(Compiler.java:381)
        at 
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:553)
        at 
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:270)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:289)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:240)
        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.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
        at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2505)
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
        at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
        at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:171)
        at
org.apache.catalina.core.StandardPipeline$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$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
        at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:223)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:405)
        at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:380)
        at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:508)
        at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:533)
        at java.lang.Thread.run(Thread.java:536)

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