DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT <http://nagoya.apache.org/bugzilla/show_bug.cgi?id=15115>. ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND INSERTED IN THE BUG DATABASE.
http://nagoya.apache.org/bugzilla/show_bug.cgi?id=15115 correct docs... XML parser *cannot* be overridden by putting in WEB-INF/lib Summary: correct docs... XML parser *cannot* be overridden by putting in WEB-INF/lib Product: Tomcat 4 Version: 4.1.16 Platform: Other OS/Version: Other Status: NEW Severity: Enhancement Priority: Other Component: Webapps:Documentation AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] http://jakarta.apache.org/tomcat/tomcat-4.1-doc/class-loader-howto.html I see a problem with the documentation. It says: <quote> xerces.jar - The XML parser that is visible by default to Tomcat internal classes and to web applications. This can be overridden, for a particular web application, by including your desired parser in /WEB-INF/lib. </quote> That is very wrong and violates the Sun classloading spec. Tomcat has enforced this since 4.0.2, but things were buggy at that time so Tomcat didn't do a perfect job at ignoring the XML parser. Instead, you'd get ClassCastExceptions and such. I'm pretty sure Xerces is mostly ignored in Tomcat-4.1.12. The XML parser should exist in one of a few places: 1. In the JDK (true with j2sdk1.4.x) 2. Overridden in JAVA_HOME/jre/lib/endorsed 3. Overridden in CATALINA_HOME/common/endorsed 4. Be placed in CATALINA_HOME/common/lib. Note that this will not override existing XML parsers from endorsed directories, but if you are using JDK1.3.x, then it will be used since that JDK version doesn't include an XML parser. The Xerces classes will be loaded either way...unless the full Xerces is in an endorsed directory already. See the following bug reports and comments by Remy and others about why it is true that the XML parser (and DOM libraries) should *not* be in WEB-INF/lib.... http://nagoya.apache.org/bugzilla/show_bug.cgi?id=6248 http://nagoya.apache.org/bugzilla/show_bug.cgi?id=6476 http://nagoya.apache.org/bugzilla/show_bug.cgi?id=6374 http://nagoya.apache.org/bugzilla/show_bug.cgi?id=7175 Jake -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
