Ah! The wonderful world of ClassLoaders! What you are seeing is expected behavior. The manual at http://jakarta.apache.org/tomcat/tomcat-4.1-doc/class-loader-howto.html should explain it all.
Sri > -----Original Message----- > From: Jim Coble [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, December 03, 2002 9:27 AM > To: [EMAIL PROTECTED] > Subject: Classloader behavior in Struts 1.0.2 and Tomcat 4.1.12 > > > I've just seen some surprising behavior in finding Action > classes depending on where I put the struts.jar file and > where I put the action class. Has anyone else seen this? Is > this how one would expect it to work? I'm using Struts 1.0.2 > and Tomcat 4.1.12 on a Solaris 8 Sun server. > > If I put struts.jar in $CATALINA_HOME/common/lib and the > action class for a particular mapping in > $CATALINA_HOME/common/classes/..., all works well. > > Likewise, all works well if I put struts.jar in > $CATALINA_HOME/webapps/MyApp/WEB-INF/lib and the action class > in $CATALINA_HOME/webapps/MyApp/WEB-INF/classes/... > > However, if I put struts.jar in > $CATALINA_HOME/webapps/MyApp/WEB-INF/lib > and the action class in $CATALINA_HOME/common/classes/..., I > get a "class not found" error for class > "org/apache/struts/action/Action" when it tries to > instantiate my action class. > > And, if I put struts.jar in $CATALINA_HOME/common/lib and my > action class in > $CATALINA_HOME/webapps/MyApp/WEB-INF/classes/..., I get a > "class not found" error for my action class when it tries to > instantiate the mapping. > > Obviously, the work-around is to put both pieces in one place > or the other but I don't understand why that should be the > case, assuming I get the package names right, etc. > > I'm guessing that this has something to do with the way in > which Tomcat 4.1.12 handles class loading but, if anyone > could shed light on this, I would much appreciate it. > > Thanks in advance. > --Jim > > ================================== > Jim Coble > Senior Technology Specialist > Center for Instructional Technology > Email: [EMAIL PROTECTED] > Voice: 919-660-5974 Fax: 919-660-5923 > Box 90198, Duke University > Durham, NC 27708-0198 > ================================== > > > > > -- > To unsubscribe, e-mail: > <mailto:struts-user-> [EMAIL PROTECTED]> > For > additional commands, > e-mail: <mailto:[EMAIL PROTECTED]> > > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
