Hi, I'm facing troubles while attempting to execute classes using Digester objects outside the struts framework : the error is "java.lang.LinkageError: Class org/xml/sax/HandlerBase violates loader constraints", and occurs when I attempt something like "digester.parse(uri);" I've tried all following configurations : * For all configurations - Linux RH7.0 (+patch for the glibc) -Tomcat (when used) 3.2 -Junit: 3.7 -Struts: 1.0 * Configurations 1 - jaxp1.0.1 / jaxp1.1 - xerces 1.2.3 / 1.3.0 / 1.4.1 * Configurations 2 - jaxp1.0.1 / jaxp1.1 - parser.jar (with jaxp1.0.1 distrib) or crimson.jar (with jaxp1.1 distrib) * Configuration 3 the one that confuses me the most : I can run the Struts example application using the libraries from the tomcat lib directory ... but I can't run my application using the exact tomcat classpath (+ my own classes) * Configuration 4 I even recompiled the struts framework and then tried to run my app using the exact same libs that were used at compile time (IMHO that shoud have removed any LinkageError, as far as I understand this message), and always get the same error. * notice : I've tried with both final SUN releases of jdk1.2 and jdk1.3 Given this, questions are : - may the code itself (miscreated Digester object or other reasons I can't figure out) causes the LinkageError, or can I be sure that's a libraries related problem ? - has anyone already used Digester objects outside the struts framework (my need for doing this is to allow unit test with JUnit test runner, but I can see many other reasons that may lead one to use the Digester facilities outside struts), and if so, with which parsers and JAXP API releases ? I've checked the struts archives at covalent.net and www.mail-archive.com (the pointers given at the jakarta resource page), but didn't find anything related to this. BTW I've seen in this list lot of posts about libs release number troubles : for jaxp, xerces, and xalan, and even for ant for them who want to compile the stuff themselves. IMHO, a summary about the faced issues and the consistently working releases set would be of great usage, and may even delete unusefull noise (as the one I'm making) from the list. The struts documentation, is very nice about features and architecture, appears somewhat vague about the prerequisites. thanx for any idea. duf.
