Issues Upgrading From 2.38 to 2.42

Hi, I have a new goal now.
I now want to change the war file from 2.38 to 2.42. However, to my knowledge, in 2.38, we have JDK 11 and Tomcat 9, but for 2.42, we need JDK 17 and Tomcat 10. I have applied two ways until now.
i have started from scratch and installed Java then Postgres then tomcat10 but having issues with it.
In the end, it doesn’t work.
and 2nd I have git cloned from Git Hub and changed in the file like guest os =24.04,jdk 17, and war file link.

Now I want if anyone has some links to the instructions or any tips and tricks that might come in handy and guide me with it.
Thanks,
Tahir Zaman khalid

Hi @Tahir_Zaman

Would you be able to specify what’s not working? Could it be that it’s not recognizing JDK 17 path? It sounds like the suggestion by @Mohindar’s might solve this if it’s a java version issue: