Refactor build scripts and Jenkinsfile

build.gradle.kts

@@ -1,6 +1,6 @@
+
 plugins {
     id("java")
-    id("maven-publish")
 }
 
 allprojects {
@@ -10,41 +10,21 @@ allprojects {
 }
 
 subprojects {
-    apply<JavaLibraryPlugin>()
-    apply(plugin = "maven-publish")
+    apply(plugin = "java-library")
 
     java {
         toolchain {
             languageVersion.set(JavaLanguageVersion.of(21))
         }
     }
-}
 
-tasks {
-    jar {
-        enabled = true
-    }
-}
-
-publishing {
-    publications {
-        create<MavenPublication>("mavenJava") {
-            from(components["java"])
-        }
+    dependencies {
+        compileOnly("io.papermc.paper:paper-api:1.21.6-R0.1-SNAPSHOT")
     }
 
-    repositories{
-        maven {
-            name = "nexus"
-            url = uri("https://repo.alttd.com/repository/alttd-snapshot/")
-            credentials {
-                username = project.property("alttdDevPublishUser") as String
-                password = project.property("alttdDevPublishPass") as String
-            }
+    tasks {
+        jar {
+            from(sourceSets.main.get().output)
         }
     }
 }
-
-dependencies {
-    compileOnly("io.papermc.paper:paper-api:1.21.6-R0.1-SNAPSHOT")
-}