-----Original Message----- From: Konstantin Kolinko [mailto:knst.koli...@gmail.com]
>1. Tomcat 7.0.26 and earlier has static field JspApplicationContextImpl.ExpressionFactory, so the EL implementation is effectively shared between web applications. Thanks for that info about the earlier bug in 7.0.26 Konstantin. >2. I do not know why you are observing the issue with 7.0.27. >Either the fix was incomplete, >or maybe the JSPs were compiled with an earlier version of Tomcat. Try clearing the work folder so that they are recompiled. >or it is caused specifically by "other vendor" using jasper package names in their classes. E.g. when some jasper classes were loaded by Tomcat by the first time, it might be loaded from 3rd party JAR instead of Tomcat. The work directory would have been empty when the apps started up with 7.0.27, it wasn't an in place upgrade from the earlier 7.x version. I also specifically cleaned the app1 work directory while I was trying to figure out what was happening. It does concern me that there was a known issue that was fixed, and here I am seeing this EL impl instance sharing between apps in the "fixed version". Mark's "Don't do that" in terms of loading container jars in apps generally is a solution, but the trick is we didn't create the problem intentionally. We got scuppered by a maven dependency and Tomcat didn't protect us. Ideally bad behaviour of an app should not break the other apps in the container. Dale --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org