SpringBoot Profile not set when deployed as war

[timaebi]

I want to use one config file per environment as described in the SpringBoot doc. This works as long as the application is run with the embedded Tomcat. As soon as I deploy the application using a war file, it doesn't look at the profile specific config files. (This can be seen by setting the log level of org.springframework.boot to DEBUG)
The application is initialized using a generated class wich inherits from SpringBootServletInitializer. Unfortunately this doesn't set the Profile as it is done in GrailsApp.configureEnvironment method.