[ http://jira.jboss.com/jira/browse/JBAS-1602?page=comments#action_12316474 ] Stan Silvert commented on JBAS-1602: ------------------------------------
The problem is with the way that Jasper is trying to locate TLD's. If you look at EmbeddedServletOptions.java, you can see that somebody meant for the TldLocationsCache to be pluggable. If it were we could easily write our own and pass the class name into the JspServlet as an option. Can we make this change to Tomcat/Jasper so that we can write our own TldLocationsCache? > Can't use container level taglibs > --------------------------------- > > Key: JBAS-1602 > URL: http://jira.jboss.com/jira/browse/JBAS-1602 > Project: JBoss Application Server > Type: Bug > Components: Web (Tomcat) service > Reporter: Stan Silvert > Priority: Critical > Attachments: TldLocationsCache.java > > > JBoss/Tomcat needs a way to install tag libraries globally so they are > available to all web applications. This functionality is mentioned in the > JSP 2.0 spec section 7.3.5. In Tomcat standalone, you can do this, but it > doesn?t work in JBoss/Tomcat. > The way this works is that the Jasper TldLocationsCache ?Scans all JARs > accessible to the webapp's classloader and its parent classloaders for TLDs.? > If I put my jar into Tomcat standalone?s common/lib directory then the tag > library will be shared across all web apps. I?ve tried putting the jar in > several ?well known? locations in JBoss/Tomcat and nothing seems to work. > For Reference, I?ve attached the TldLocationsCache source code from Tomcat > 5.5.8. > Concerning TldLocationsCache, Scott Stark says: > "This class is useless for non-URLClassLoaders and URLClassLoaders that do > not expose their classpath via getURLs which is what we currently do because > of an old bad behavior with annotated codebases of rmi classes. " > Remy Maucherat offered this as a possible solution: > Would it be possible to have the ENCLoader facade return more interesting > things ? > /** > * A trival extension of URLClassLoader that uses an empty URL[] as its > * classpath so that all work is delegated to its parent. > */ > static class ENCLoader extends URLClassLoader > { > private URL[] urllist = new URL[0]; > ENCLoader(ClassLoader parent) > { > super(new URL[0], parent); > } > void addURLInternal(URL url) > { > URL[] result = new URL[urllist.length + 1]; > for (int i = 0; i < urllist.length; i++) > result[i] = urllist[i]; > result[urllist.length] = url; > urllist = result; > } > public URL[] getURLs() > { > return urllist; > } > } -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - If you want more information on JIRA, or have a bug to report see: http://www.atlassian.com/software/jira ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ JBoss-Development mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/jboss-development
