This week's giveaways are in the MongoDB and Jobs Discussion forums. We're giving away four copies of Mongo DB Applied Patterns and 4 resume reviews from Five Year Itch and have the authors/reps on-line! See this thread and this one for details.
I am new to JSP custom tags when i tried to run my first example using custom tags in JRUN i am getting the error _______________________________ 500 Internal Server Error /tagext/jsp/hello1.jsp: javax.servlet.ServletException: javax.servlet.jsp.tagext.TagData: method getAttributes()Ljava/util/Enumeration; not found java.lang.NoSuchMethodError: javax.servlet.jsp.tagext.TagData: method getAttributes()Ljava/util/Enumeration; not found at allaire.jrun.jsp.JSPParser.validateTagAttributes(JSPParser.java, Compiled Code) at allaire.jrun.jsp.JSPParser.action(JSPParser.java:962) at allaire.jrun.jsp.JSPParser.parse(JSPParser.java, Compiled Code) at allaire.jrun.jsp.JSPParser.writeXML(JSPParser.java:151) at allaire.jrun.jsp.JSPParser.generateXML(JSPParser.java:123) at allaire.jrun.jsp.JSPParser.generateXML(JSPParser.java:67) at allaire.jrun.jsp.JSPServlet.parsePage(JSPServlet.java:409) at allaire.jrun.jsp.JSPServlet.createServlet(JSPServlet.java:381) at allaire.jrun.jsp.JSPServlet.loadPage(JSPServlet.java:202) at allaire.jrun.jsp.JSPServlet.service(JSPServlet.java:169) at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013) at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java, Compiled Code) at allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.java:88) at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1131) at allaire.jrun.servlet.JvmContext.dispatch(JvmContext.java:330) at allaire.jrun.http.WebEndpoint.run(WebEndpoint.java:107) at allaire.jrun.ThreadPool.run(ThreadPool.java, Compiled Code) at allaire.jrun.WorkerThread.run(WorkerThread.java, Compiled Code) ___________________________ when i tried to run the same example in TOMCAT i am getting the error _____________________________________________________ Error: 500 Location: /hello/jsp/hello1.jsp Internal Servlet Error: org.apache.jasper.JasperException: Unable to open taglibrary /hello : Parse Error in the tag library descriptor: Element type "web-app" is not declared. at org.apache.jasper.compiler.JspParseEventListener.handleDirective(JspParseEventListener.java, Compiled Code) at org.apache.jasper.compiler.DelegatingListener.handleDirective(DelegatingListener.java:116) at org.apache.jasper.compiler.Parser$Directive.accept(Parser.java, Compiled Code) at org.apache.jasper.compiler.Parser.parse(Parser.java, Compiled Code) at org.apache.jasper.compiler.Parser.parse(Parser.java:1038) at org.apache.jasper.compiler.Parser.parse(Parser.java:1034) at org.apache.jasper.compiler.Compiler.compile(Compiler.java, Compiled Code) at org.apache.jasper.runtime.JspServlet.loadJSP(JspServlet.java:413) at org.apache.jasper.runtime.JspServlet$JspServletWrapper.loadIfNecessary(JspServlet.java:149) at org.apache.jasper.runtime.JspServlet$JspServletWrapper.service(JspServlet.java:161) at org.apache.jasper.runtime.JspServlet.serviceJspFile(JspServlet.java:261) at org.apache.jasper.runtime.JspServlet.service(JspServlet.java, Compiled Code) at javax.servlet.http.HttpServlet.service(HttpServlet.java:868) at org.apache.tomcat.core.ServletWrapper.handleRequest(ServletWrapper.java, Compiled Code) at org.apache.tomcat.core.ContextManager.service(ContextManager.java:559) at org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:160) at org.apache.tomcat.service.TcpConnectionThread.run(SimpleTcpEndpoint.java:338) at java.lang.Thread.run(Thread.java:479) ____________________________________________________ i tried alot to find out my mistake but i couldn't . please help me thanks sumana
William Brogden
Author and all-around good cowpoke
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Joined: Mar 22, 2000
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javax.servlet.ServletException: javax.servlet.jsp.tagext.TagData: method getAttributes()Ljava/util/Enumeration; not found java.lang.NoSuchMethodError: javax.servlet.jsp.tagext.TagData: method getAttributes()Ljava/util/Enumeration; not found This may be related to the second error: ----------- org.apache.jasper.JasperException: Unable to open taglibrary /hello : Parse Error in the tag library descriptor: Element type "web-app" is not declared. That is pretty straightforward, something is wrong with either your web.xml or your taglib tld file. Bill
hi bill, Thanks . what u said was right.i went through my tld and web.xml again. i forgot to mention DOCTYPE in web.xml. my program is working now after correcting the mistake. Thanks again Sumana
I agree. Here's the link: http://ej-technologies/jprofiler - if it wasn't for jprofiler, we would need to
run our stuff on 16 servers instead of 3.
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