i cannot gradle

build.gradle

 plugins {
-	id 'com.github.johnrengelman.shadow' version '2.0.4'
 	id 'java'
 }
 
@@ -12,4 +11,46 @@ repositories {
 dependencies {
 	compileOnly 'org.spigotmc:spigot-api:1.12.2-R0.1-SNAPSHOT'
 	compile 'info.faljse:SDNotify:1.1'
+
+}
+
+jar {
+	classifier = 'nodeps'
+}
+
+task fatJar(type: Jar) {
+	from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } }
+	with jar
+}
+
+task sourceJar(type: Jar, dependsOn: classes) {
+	classifier = 'sources'
+	from sourceSets.main.allSource
+}
+
+task getSource(dependsOn: sourceJar) {
+	inputs.files configurations.runtime
+	outputs.dir "${buildDir}/sources"
+	doLast {
+		def componentIds = configurations.runtime.incoming.resolutionResult.allDependencies.collect { it.selected.id }
+		ArtifactResolutionResult result = dependencies.createArtifactResolutionQuery()
+			.forComponents(componentIds)
+			.withArtifacts(JvmLibrary, SourcesArtifact)
+			.execute()
+		def sourceArtifacts = []
+		result.resolvedComponents.each { ComponentArtifactsResult component ->
+			Set<ArtifactResult> sources = component.getArtifacts(SourcesArtifact)
+			println "Found ${sources.size()} sources for ${component.id}"
+			sources.each { ArtifactResult ar ->
+				if (ar instanceof ResolvedArtifactResult) {
+					sourceArtifacts << ar.file
+				}
+			}
+		}
+
+		copy {
+			from sourceArtifacts
+			into "${buildDir}/sources"
+		}
+	}
 }