NullPointerException during SSL initialization move allowLinking attribute from Context to Resources.base//shared/conf/Catalina/localhost/.xml.base/server/share/conf/Catalina/localhost/pki.xml.base/server/share/conf/Catalina/localhost/ROOT.xml.The following deployment descriptors need to be updated: The base/server/share/conf/server.xml needs to be modified: Installation Issues Incompatible Tomcat configuration Same thing with Tomcat JSS, since the same Tomcat JSS versions may run on multiple platforms with different Tomcat versions, it needs to maintain separate set of files for each Tomcat version. If a platforms supports both Tomcat versions, Dogtag needs to provide a mechanism to select which Tomcat version to use on new and existing instances. That means Dogtag must maintain separate set of files for each Tomcat versions, and build the ones available on the target platform. Since the same Dogtag versions may run on multiple platforms, and each platform supports the different Tomcat versions, Dogtag needs to support multiple Tomcat versions simultaneously. The Tomcat JSS needs to be updated due to changes in Tomcat API. base/server/cms/src/com/netscape/cms/servlet/common/CMSTemplate.java.base/server/tomcat/src/com/netscape/cms/tomcat/ProxyRealm.java.base/server/tomcat/src/com/netscape/cms/tomcat/SSLAuthenticatorWithFallback.java.The following classes need to be updated due to changes in Tomcat API and Servlet API: This page contains the efforts required to support Tomcat 8 in Fedora 23. In Fedora 23 the Tomcat is changed to version 8, which is incompatible with the current Dogtag. The current Dogtag only supports Tomcat 7. 4.1 Internal Server Error during authentication.3.3 NullPointerException during SSL initialization.3.2 Incompatible deployment descriptors.2.3 Support for multiple Tomcat versions.

Tomcat supported versions