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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=7175

Class loading issues when using own XML parser

           Summary: Class loading issues when using own XML parser
           Product: Tomcat 4
           Version: 4.0.4 Beta 1
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Major
          Priority: Other
         Component: Catalina
        AssignedTo: [EMAIL PROTECTED]
        ReportedBy: [EMAIL PROTECTED]
                CC: [EMAIL PROTECTED]


Starting from Tomcat 4.0.2, it is not possible to bundle web applocation with 
the XML parser of choice. If application ships with the parser in the WEB-
INF/lib, following exception occurs:

------------------8<-----------------
java.lang.ClassCastException: 
org.apache.xerces.parsers.StandardParserConfiguration
        at org.xml.sax.helpers.XMLReaderFactory.createXMLReader(Unknown Source)
        at org.xml.sax.helpers.XMLReaderFactory.createXMLReader(Unknown Source)
        at org.apache.jsp.test$jsp._jspService(test$jsp.java:71)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service
(JspServlet.java:202)
...
------------------8<-----------------

How to reproduce:
1. Create empty webapp (or use existing, like ROOT)
2. Drop xercesImpl-2.0.0.jar and xml-apis.jar into WEB-INF/lib.
3. Create test.jsp (attached)
4. Invoke test.jsp

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