4.0.0 com.example ArenaPlugin 1.0.0 jar 21 21 UTF-8 spigot-repo https://hub.spigotmc.org/nexus/content/repositories/snapshots/ org.spigotmc spigot-api 1.21.1-R0.1-SNAPSHOT provided org.apache.maven.plugins maven-compiler-plugin 3.11.0