[go-migration] [OpenJDK JRE] Default OpenJDK JRE and Tomcat versions have changed (a potential issue for the legacy apps?)

[ivzhelev]

If an app does not specify concrete Java or Tomcat version in its manifest, the defaults come in place: OpenJDK JRE 1.8.0_x and Tomcat 9.0.x.

However, with the go-migration branch the defaults have changed to: OpenJDK JRE 17.x and Tomcat 10.x.
Wouldn't that deafults change cause potential issues for the legacy applications out there (running with the Java 1.8 and Tomcat 9)?

[ramonskie]

this is going to be a mayor release and i think it is justified to set newer defaults.
we just need to document these

[ivzhelev]

yes, it makes sense, thanks.

Users of Tomcat 10 onwards should be aware that, as a result of the move from Java EE to Jakarta EE as part of the transfer of Java EE to the Eclipse Foundation, the primary package for all implemented APIs has changed from javax.* to jakarta.*. This will almost certainly require code changes to enable applications to migrate from Tomcat 9 and earlier to Tomcat 10 and later. A migration tool has been developed to aid this process.

[ivzhelev]

suggested docu addressing the issue: #1158