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The following page has been changed by SimonKitching: http://wiki.apache.org/jakarta-commons/Logging/FrequentlyAskedQuestions The comment on the change is: Add known issue re Tomcat Jspc and Ant ------------------------------------------------------------------------------ * All the logging classes (both Log and the logging implementations) are deployed by the same classloader. In other words, place commons-logging.jar and the logging library jar in the same directory. * There is only one copy of the classes to be found within the classloader hierarchy. In application container environments this means ensuring that if the classes are found in a parent classloader, they are not also present in the leaf classloader associated with the application. So, if the jar is deployed within the root classloader of the container then it should be removed from the application's library. + === Known causes of "does not implement Log" === + + ==== Running JspC from Ant ==== + + The Tomcat JspC tool compiles JSP pages into bytecode. It had a bug in versions prior to 5.5.5 or 5.0.30. where + it set the context classloader to a non-standard value, then failed to reset it to the original value + on exit. When run "in-process" as an ant task this would cause commons-logging to try to load logging libraries + from an invalid classloader. This bug has been fixed in the 5.5.5 and 5.0.30 releases of Tomcat. + == How Can I Use Commons-Logging In WebSphere 5.1? == {{{ --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
