Apache Crimson not compatible with JSTL?

Question

Hi, I have been experiencing problems whilst attempting to use the JSTL Standard Tag Library with the Apache Crimson XML Parser in the classpath. I have tried running the JSTL JSP page without Crimson in the classpath and it works fine. However when included in the classpath and I attempt to view the page I get the error below. According to this page:
http://jakarta.apache.org/taglibs/doc/standard-1.0-doc/GettingStarted.html
the "Standard Taglib requires a JAXP 1.1 or 1.2 compliant parser". It goes on to list Crimson as an example of this. However the Crimson pages states that it supports "JAXP 1.1 minus the javax.xml.transform package."
I would simply use another XML parser, except that I am using the Google API Jar which uses Crimson, thus I cannot remove it from the classpath if I wish to continue using the Google API.
If anyone has any idea how I might solve this problem I'd be keen to hear them,
Thanks very much,
Ross Butler
org.apache.jasper.JasperException: <h3>Validation error messages from TagLibraryValidator for c</h3>
null: java.lang.IllegalStateException: can't declare any more prefixes in this context
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:50)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:72)
org.apache.jasper.compiler.Validator.validateXmlView(Validator.java:1549)
org.apache.jasper.compiler.Validator.validate(Validator.java:1495)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:157)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:286)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:556)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:296)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:245)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:362)

Answer 1

You should not add j2ee.jar to the WEB-INF folder. I think you should move it to "C:\Program Files\Apache Group\Tomcat 4.1\lib\j2ee.jar".
Also, it might help to read section 9.7.2 in the servlet 2.3 specification (as stated in the error). You can download the spec here: http://www.jcp.org/aboutJava/communityprocess/final/jsr053/