build.gradle

task sourcesJar(type: Jar, dependsOn:classes) { 
	classifier = 'sources' 
	from sourceSets.main.allSource 
} 

task javadocJar(type: Jar, dependsOn:javadoc) { 
	classifier = 'javadoc' 
	from javadoc.destinationDir 
} 

artifacts { 
	archives(sourcesJar) {
		type = 'source'
	}
	
	archives(javadocJar) {
		type = 'javadoc'
	}
}