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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 42983] New: - Creating a custom tag with an attribute named "class" causes exception
Date Thu, 26 Jul 2007 19:29:50 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=42983

           Summary: Creating a custom tag with an attribute named "class"
                    causes exception
           Product: Tomcat 5
           Version: 5.5.23
          Platform: Other
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Servlet & JSP API
        AssignedTo: tomcat-dev@jakarta.apache.org
        ReportedBy: jorge.williams@inl.gov


I'm developing a tag library. The tag library is written to the 1.2 spec as it
should work in both JSP 1.2 and JSP 2.0 platforms.  Under Tomcat 5.5.23 I get an
exception when trying to set a string attribute named "class".  The exception
suggests that a setter method cannot be found, but I'm sure that the setter
method  is available especially since when I deploy the same application under
WebLogic 9 it works fine.  I wasn't able to find anything in the JSP 1.2 spec
that says that "class" is a reserved attribute so I'm not sure what the problem
is.  I've noticed the same problem under several versions of Tomcat 4.

EXCEPTION FOLLOWS:

org.apache.jasper.JasperException: /index.jsp(27,31) Unable to find setter
method for attribute: class
	org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
	org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
	org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:148)
	org.apache.jasper.compiler.Generator$GenerateVisitor.evaluateAttribute(Generator.java:2722)
	org.apache.jasper.compiler.Generator$GenerateVisitor.generateSetters(Generator.java:2875)
	org.apache.jasper.compiler.Generator$GenerateVisitor.generateCustomStart(Generator.java:2188)
	org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1686)
	org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1442)
	org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2164)
	org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2214)
	org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1706)
	org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1442)
	org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2164)
	org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2214)
	org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2225)
	org.apache.jasper.compiler.Node$JspRoot.accept(Node.java:526)
	org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2164)
	org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2214)
	org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2220)
	org.apache.jasper.compiler.Node$Root.accept(Node.java:457)
	org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2164)
	org.apache.jasper.compiler.Generator.generate(Generator.java:3322)
	org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:199)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:296)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:277)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:265)
	org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:299)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:315)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

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