Thank you all for your feedback, it's much clearer now. Patrick
On Thu, Jan 20, 2011 at 6:30 AM, Antoine Levy-Lambert <anto...@gmx.de> wrote: > On 1/19/11 9:46 PM, Michael Ludwig wrote: >> But I still haven't understood the underlying issue. What's so special about >> mail.jar that it needs special treatment? > It *could* be that instead of just using the classloader of mail.jar ... > to look for other classes of mail.jar or activation.jar it wants to have > these classes in the context classloader. > > This is a conjecture, one would have to read the source code of mail.jar > to know for sure what is going on. > > Just recently at work I developed a custom task which is instantiating > other classes which themselves use log4j and instantiate loggers. > > What I ended up doing was adding a line in my code to make the > classloader where I am instantiating these custom classes from the > thread context classloader. > > Otherwise log4j was saying that it did not find its own implementations. > > >> I noticed its MANIFEST.MF contains lots of checksums. Do they cause problems >> for additional classloaders defined in Ant? > The checksums can cause problems if there are other instances of > mail.jar in other classloaders. >> Name: javax/mail/search/SearchTerm.class >> SHA1-Digest: JveDH0FF1JcVa7wJL7mLJ48Vwd4= > Regards, > > Antoine > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@ant.apache.org > For additional commands, e-mail: user-h...@ant.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@ant.apache.org For additional commands, e-mail: user-h...@ant.apache.org
