Sorry for the barrage of messages about this problem yesterday. I should have waited until I had the complete story, and done my homework better before posting to the list. To make up for this, here's a summary of what I've found by now.
The visible problem is that the <x:transform> in the Standard library (JSTL RI), versions 1.0 and 1.0.1 throws the following exception when running with JDK 1.3.x (at least 1.3.1_01), on any platform (most likely): javax.servlet.jsp.JspException: SAX2 driver class org.apache.crimson.parser.XMLReaderImpl not found at org.apache.taglibs.standard.tag.common.xml.TransformSupport.doStartTag(TransformSupport.java:170) [...] In other words, it's looking for the Crimson parser instead of using the bundled Xerces parser. This seems to be related to how factory classes for various XML tasks are located. Xalan looks for a factory for something called a "SAX 2 driver" using the property name "org.xml.sax.driver". I assume that the rules for locating this factory are the same as for the JAXP DocumentBuilderFactory, etc. Since xercesImpl.jar correctly contains an entry for this property in the META-INF/services directory, it should be found but it isn't when using JDK 1.3.x. One solution is to define the "org.xml.sax.driver" property explicitly as an option to the java command. For Tomcat 4, the easiest way to do this is to set the CATALINA_OPS environment variable: CATALINA_OPTS=-Dorg.xml.sax.driver=org.apache.xerces.parsers.SAXParser I also tried another approach. It turns out that the Class-Path header in the META-INF/MANIFEST.MF file in xalan.jar lists dependencies on jaxp.jar and crimson.jar instead of the bundled jaxp-api.jar and xercesImpl.jar. I figured this could cause the problem so I patched the xalan.jar file to use a manifest with Class-Path set to the correct JAR files instead, but no luck. Unless someone else has a better solution than the one presented above, I suggest we include it in the README for Standard 1.0.2. Hans -- Hans Bergsten [EMAIL PROTECTED] Gefion Software http://www.gefionsoftware.com JavaServer Pages http://TheJSPBook.com -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
