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I'm really new to Docker and wanted to setup a Wildfly-Container (v26) and deploying a .war-File to it. The problem I've encountered is, that Wildfly is using JDK11 as base image.

My program was written in JDK17. I've found this to change the JDK and the wildfly is running, but I have no idea if it worked. Is there any command or way to read out the used java version the docker image of wildfly is now using?

Sure I could 'just deploy' the war, but I have no access to the admin console. It looks like there is another problem I have to fix before.

Daniel
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    Are you taking advantage of anything in Java 12+? If not you can recompile as a Java 11 project. – stdunbar Jun 09 '22 at 14:40
  • Yeah I use some Stuff from newer JavaVersions. Therefore a recompile ist nothing, I can do. I could get access to the admin console and as I thought, it seems like the wrong javaversion is running. I can't deploy the WAR due to an Error coming from a class which uses newer javaversion stuff. Maybe I just set up m own image based on java17 and install wildfly on that. – Daniel Jun 10 '22 at 08:31
  • Building your own makes the most sense then. It shouldn't be too bad as you can use that container as a pattern. – stdunbar Jun 10 '22 at 12:59

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