Hi, I am trying to use the JSTL x:transform tag to render a page that has an XML as the input to it. It works fine when I use the actual XSL URL. When I precompile the XSLs and include them as a jar file in the WEB-INF/lib and use the same code, I keep getting a NullPointerException at org.apache.taglibs.standard.tag.common.xml.Transfo rmSupport.doEndTag(TransformSupport.java . . Can someone please tell me if there is any way I can make precompiled XSLs to work with the transform tag? If this does not work, is there an alternate way of using precompiled XSLs using any existing custom tag libraries? Thanks.