On 10.03.2021 14:44, Mark Thomas wrote: > On 10/03/2021 13:19, Rony G. Flatscher (Apache) wrote: >> The STL (standard tag library) jstl-1.2_1.jar is able to have its tags >> processed without requiring >> the user to place its tld-files into the webapps WEB-INF directory. Rather >> jstl-1.2_1.jar stores the >> tld files in its META-INF directory and yet they seem to be found by the JSP >> processor (not sure >> whether this is the correct term). >> >> How can this be achieved for any taglib? What needs to be done to allow >> including the tld-files >> within the taglib library such as to become able to remove the need to place >> the taglib library's >> tld files into the webapps WEB-INF directory? > > <quote spec="JSP" section="7.3.1"> > When deployed inside a JAR file, the tag library descriptor files must be in > the META-INF > directory, or a subdirectory of it. > </quote> > > You also need to make sure that Tomcat isn't configured to skip your JAR file > when scanning for > tag libraries (see CATALINA_BASE/conf/catalina.properties).
Thank you very much! It turns out that I forgot to adjust the uri value in the JSP files to match the uri defined in the tld files! :( The reason why I thought that something was wrong with the jar file and the tld locations within (despite having them in META-INF) was the following entry in the log file: ... cut ... 10-Mar-2021 15:13:14.264 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [D:\Apache Software Foundation\Tomcat 9.0\*webapps\aa_rgf_test*] 10-Mar-2021 15:13:16.362 INFO [main] org.apache.jasper.servlet.TldScanner.scanJars /At least one JAR was scanned for TLDs yet contained no TLDs/. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time. 10-Mar-2021 15:13:16.362 INFO [main] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [D:\Apache Software Foundation\Tomcat 9.0\webapps\aa_rgf_test] has finished in [2,098] ms ... cut ... So actually the log message means what it states: there was at least one jar that did not contain a TLD file (I read it: no TLD files were found in the scanned jars)! :) Very sorry for the noise, typical user error. :( Yet, now it is possible to forgo the current need to copy the tld files to the WEB-INF directory, which is really great! ---rony