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06.23.2008 at 11:06PM PDT, ID: 23510003
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6.2

Why is the value for the useBean class attribute invalid?

Asked by CharleneS77 in Java Server Pages (JSP), J2EE, Java Standard Tag Library (JSTL) & Server Tags

Tags: , , , ,

I am able to deploy and run this Web Application locally, but when I upload it to a server, I get the error below.  I am using Java 1.6.0_06.  I do have to compile using javac -source 1.5 -target 1.5 QuadraticEquationAlgorithm.java before uploading to the server, which I have done.  My files are attached.  Thank you in advance!Start Free Trial 
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HTTP Status 500 - 
 
--------------------------------------------------------------------------------
 
type Exception report
 
message 
 
description The server encountered an internal error () that prevented it from fulfilling this request.
 
exception 
 
org.apache.jasper.JasperException: /QuadEquTest/quadEquation.jsp(4,0) The value for the useBean class attribute javaBeans.QuadraticEquationAlgorithm is invalid.
	org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:512)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
 
 
root cause 
 
org.apache.jasper.JasperException: /QuadEquTest/quadEquation.jsp(4,0) The value for the useBean class attribute javaBeans.QuadraticEquationAlgorithm is invalid.
	org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:39)
	org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:405)
	org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:146)
	org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1174)
	org.apache.jasper.compiler.Node$UseBean.accept(Node.java:1116)
	org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
	org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
	org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
	org.apache.jasper.compiler.Node$Root.accept(Node.java:456)
	org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
	org.apache.jasper.compiler.Generator.generate(Generator.java:3320)
	org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:198)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:295)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:276)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:264)
	org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:305)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
 
 
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.20 logs.
Attachments:
 
QuadEquTest.zip (4 KB) (File Type Details) 
Remove the txt extensions at the end of each filename.
 
[+][-]06.23.2008 at 11:34PM PDT, ID: 21852916

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[+][-]06.24.2008 at 04:13PM PDT, ID: 21861427

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[+][-]06.24.2008 at 05:17PM PDT, ID: 21861702

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About this solution

Zones: Java Server Pages (JSP), J2EE, Java Standard Tag Library (JSTL) & Server Tags
Tags: JSP, JavaBean, JSTL, EL Statements, J2EE
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Solution Provided By: CharleneS77
Participating Experts: 3
Solution Grade: A
 
 
[+][-]06.26.2008 at 07:03AM PDT, ID: 21874892

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[+][-]06.26.2008 at 02:58PM PDT, ID: 21879422

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[+][-]06.26.2008 at 03:28PM PDT, ID: 21879619

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[+][-]06.26.2008 at 03:33PM PDT, ID: 21879650

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