On 04/02/2012 16:44, Violeta Georgieva wrote: > Hi, > > The Dependencies on Extensions mechanism is described in Servlet Spec 3.0 - > chapter 10.7.1.
It appears to be first documented in Tomcat for Servlet 2.3. > In the web application's Manifest file one should describe the following: > > Extension-List: <extension> > <extension>-Extension-Name: <name> > <extension>-Specification-Version: <version> > <extension>-Implementation-Version: <version> > <extension>-Implementation-Vendor-Id: <vendor> > > in the jar file's Manifest (this is the extension), one should specify: > > Extension-Name: <name> > Specification-Version: <version> > Implementation-Version: <version> > Implementation-Vendor-Id: <vendor> I'm curious, what kind of extension are you creating and what for? p > So from the spec we have "The container must provide a directory for these > libraries. The files placed within this directory must be available across > all Web applications. The location of this directory is container-specific. > The class loader the servlet container uses for loading these library files > must be the same for all Web applications within the same JVM. This class > loader instance must be somewhere in the chain of parent class loaders of > the Web application class loader." > > From Tomcat sources I can see that while starting web app context > (StandardContext.startInternal()) the extensions are checked for > availability (ExtensionValidator.validateApplication). I can see again in > the ExtensionValidator that "catalina.ext.dirs" also is scanned while > scanning for container level extensions. Unfortunately I cannot find a > place where this extensions are made available for web applications. > > > Regards > Violeta > > 2012/2/3 Pid <p...@pidster.com> > >> On 03/02/2012 13:25, Violeta Georgieva wrote: >>> Hi, >>> >>> I'm using Tomcat 7.0.23 on Windows. >>> >>> I have a web application that specifies in the Manifest that wants to use >>> an extension. >> >> How does it do that? >> >>> I specify "catalina.ext.dirs" to point to the directory where I placed my >>> extensions jar files. >> >> How is that property processed? >> >> >>> Unfortunately when I request my application I'm receiving >>> "ClassNotFoundException". >>> >>> I verified that >>> >>> ExtensionValidator.validateApplication() succeeded to find the extension >>> jar file. >>> >>> What could be the problem? May be I'm missing some configuration? >> >> No idea. What are extensions? >> >> How is that JAR file added to the/a classloader? >> >> >> p >> >> >>> Thanks in advance. >>> >>> Regards >>> >>> Violeta >>> >> >> >> -- >> >> [key:62590808] >> >> > -- [key:62590808]
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