Nope. something seems off with the CI config:

Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default of goal com.diffplug.spotless:spotless-maven-plugin:2.40.0:check failed: Unable to load the mojo 'check' in the plugin 'com.diffplug.spotless:spotless-maven-plugin:2.40.0' due to an API incompatibility: org.codehaus.plexus.component.repository.exception.ComponentLookupException: com/diffplug/spotless/maven/SpotlessCheckMojo has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0

Nope. something seems off with the CI config:

Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default of goal com.diffplug.spotless:spotless-maven-plugin:2.40.0:check failed: Unable to load the mojo 'check' in the plugin 'com.diffplug.spotless:spotless-maven-plugin:2.40.0' due to an API incompatibility: org.codehaus.plexus.component.repository.exception.ComponentLookupException: com/diffplug/spotless/maven/SpotlessCheckMojo has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0

I think this requires JDK 11 or 17 at build time and should target JDK 8 at runtime.

55 is Java 11, I think

I'm merging this one as it blocks other PRs.

Resolve #109