4.0.0 steamwar SpigotCore 2.0 pom https://maven.apache.org UTF-8 ${project.basedir} org.apache.maven.plugins maven-compiler-plugin 3.6.1 1.8 1.8 ${project.name} SpigotCore_API SpigotCore_8 SpigotCore_9 SpigotCore_10 SpigotCore_12 SpigotCore_14 SpigotCore_15 SpigotCore_Main