add more jar package (javadocJar sourcesJar)

build.gradle

@@ -190,6 +190,19 @@ task iris(type: Copy) {
     dependsOn(build)
 }
 
+task sourcesJar(type: Jar, dependsOn: classes) {
+    dependsOn(iris)
+    archiveClassifier.set('sources')
+    from sourceSets.main.allSource
+}
+
+task javadocJar(type: Jar, dependsOn: javadoc) {
+    dependsOn(iris)
+    archiveClassifier.set('javadoc')
+    from javadoc.destinationDir
+}
+
+
 def registerCustomOutputTask(name, path) {
     if (!System.properties['os.name'].toLowerCase().contains('windows')) {
         return;