SpringBoot Spring Boot does not start after upgrading to 3.1.3 from 2.7.6

Hi, I am sorry for vague description of this issue but I would be glad for any ideas what might have happened after upgrading to Spring Boot v3.

I am trying to migrate to Spring Boot v3 from v2 and my application does not start after running gradle bootRun anymore. It does display BUILD SUCCESS, though.

This is the whole log when starting the app:

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::                (v3.1.3)

Disconnected from the target VM, address: 'localhost:42803', transport: 'socket'
Connected to the target VM, address: '127.0.0.1:39009', transport: 'socket'

Deprecated Gradle features were used in this build, making it incompatible with Gradle 8.0.

You can use '--warning-mode all' to show the individual deprecation warnings and determine if they come from your own scripts or plugins.

See https://docs.gradle.org/7.4.1/userguide/command_line_interface.html#sec:command_line_warnings

BUILD SUCCESSFUL in 57s

I tried debugging the run method but it ends at SpringApplicationListeners::doWithListeners where it jumps to another thread and finish without exceptions so it is difficult to figure out what is happening.

Comment From: mhalbritter

Hello,

unfortunately it's impossible to tell from these logs what went wrong. If you'd like us to spend some time investigating, please take the time to provide a complete minimal sample (something that we can unzip or git clone, build, and deploy) that reproduces the problem.

You could also try to run the main method from your IDE with --debug parameters and see if that leads to a more useful log.

Comment From: Smedzlatko

Thanks, I will investigate further. I suppose it must be some specific clash of dependencies so probably will have to do this on my own.