Fix javadoc task

Author: abnegate

templates/android/scripts/publish-module.gradle

@@ -8,7 +8,6 @@ tasks.register("sourcesJar", Jar) {
 
 tasks.register("javadoc", Javadoc) {
     source = android.sourceSets.getByName("main").java.srcDirs
-    classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
     setDestinationDir(file("../javadoc/"))
     failOnError false
 }
@@ -19,6 +18,10 @@ tasks.register("javadocJar", Jar) {
     from(javadoc)
 }
 
+afterEvaluate {
+    tasks.javadoc.classpath += files(project.android.getBootClasspath())
+}
+
 publishing {
     publications {
         release(MavenPublication) {