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problem using an XMLParser in JSP

 
madhu gun
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Hi
In my application I am using a Servlet forwarding a simple request to a JSP,the JSP contacting a Bean for converting an XML document into an HTML .The bean uses a parser called XalanParser(java class)for converting the XML into html using an XSL file .When I request the JSP page ,I am getting the following exception in the Tomcat Console.What could be the problem.Please help.
javax.servlet.ServletException: mantra/ir2/util/XalanParser
at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:457)
at org.apache.jsp.testBean$jsp._jspService(testBean$jsp.java:104)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:1264)
at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspSer
vlet.java:201)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:3
81)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:1264)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDisp
atcher.java:672)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationD
ispatcher.java:430)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDis
patcher.java:354)
at CallJspSlet2.doGet(CallJspSlet2.java:16)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:1125)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:1264)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:243)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline
.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:215)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline
.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:
2366)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:164)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline
.java:566)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:
462)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline
.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:163)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline
.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcesso
r.java:1005)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.ja
va:1098)
at java.lang.Thread.run(Unknown Source)

Thaking you,
madhu
 
Tim Holloway
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Unfortunately, there's no real information there, but I wouldn't be surprised if you haven't run into a problem specific to Catalina -- conflicting XML parsers. In the pre-Catalina Tomcat, this was a problem because of shared classpaths between the server and its apps. In Catalina the classpaths have been separated. There's an explanation specifically mentioning XML parsers on the Tomcat website.
 
madhu gun
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hi tim
Thanq very much.can you please eloborate what you know further.Now,I will go to Tomcat site and try to find information .
madhu
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