Use org.reflections to get all subclass of MineClassImpl in order to avoid the declaration inside the MineClassFactory

build.gradle

@@ -1,5 +1,16 @@
 import org.apache.tools.ant.filters.ReplaceTokens
+import com.github.jengelman.gradle.plugins.shadow.tasks.ConfigureShadowRelocation
 
+buildscript {
+    repositories {
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.github.jengelman.gradle.plugins:shadow:5.1.0'
+    }
+}
+
+apply plugin: 'com.github.johnrengelman.shadow'
 apply plugin: 'java'
 
 group = 'net.babamod'
@@ -22,6 +33,7 @@ repositories {
 
 dependencies {
     compileOnly 'org.spigotmc:spigot-api:1.16.3-R0.1-SNAPSHOT'
+    compile group: 'org.reflections', name: 'reflections', version: '0.9.10'
 }
 
 processResources {
@@ -29,3 +41,15 @@ processResources {
         filter ReplaceTokens, tokens: [version: version]
     }
 }
+
+shadowJar {
+    archiveBaseName.set('mineclass')
+    archiveClassifier.set('')
+    archiveVersion.set('')
+}
+
+task relocateShadowJar(type: ConfigureShadowRelocation) {
+    target = tasks.shadowJar
+}
+
+tasks.shadowJar.dependsOn tasks.relocateShadowJar