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https://issues.apache.org/jira/browse/GUACAMOLE-1325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17816627#comment-17816627
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Libor Svehlak commented on GUACAMOLE-1325:
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My pragmatic suggestion approach would be the following (in constraints like
limited development resources and time in mind):
1. Switch to Tomcat 10 and drop the support for Tomcat 9 with the next
Guacamole version
Applicable only when there aren't too many Tomcat 9 users.
Has to be available as soon as possible (e.g. till end of 2024).
2. Allow to use Tomcat 9 together with Tomcat 10 with a solution with a low
development effort
Forget about too complicate dynamic handling of two parallel Tomcat versions as
the old version is available just for limited time till EOL.
Split a Guacamole to two versions: one for "javax" (Tomcat 9) and another for
"jakarta" (Tomcat 10). Such approach is already taken by some OSS projects.
E.g. the next Gucamole version can be primarly focused on Tomcat 10 ("jakarta")
but a simple pre-compilation task for Tomcat 9 ("javax") can do a simple sed
replacement in sources from "jakarta.servlet" to older "javax.servlet,
"jakarta.websocket" to older "javax.websocket" etc.
Maybe replacement will be more complicate but IMHO it can be implemented much
faster than generic dynamic handling of different versions (which will be then
obsolete when Tomcat 9 reaches EOL).
I agree that solution is not very nice from architectural / pure technical
point of view but it is pragmatic approach and in each case the support for
Tomcat 9 will be dropped sooner or later. Then it is IMHO easier (with this
approach) to drop support for Tomcat 9 and keep just support for Tomcat 10.
> Apache Tomcat 10.0 Servlet API incompatibility
> ----------------------------------------------
>
> Key: GUACAMOLE-1325
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-1325
> Project: Guacamole
> Issue Type: Improvement
> Components: guacamole, guacamole-common, guacamole-ext
> Affects Versions: 1.3.0, 1.4.0
> Reporter: Mathias
> Priority: Minor
>
> Guacamole client 1.3.0 is not working with Apache Tomcat 10. Apache Tomcat
> 10.0.x requires a new Servlet 5.0 API. The Java package has changed from
> javax.servlet to jakarta.servlet.
> [Migrating from Tomcat 9.0 to 10.0|http://tomcat.apache.org/migration-10.html]
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