Add java source files to artifact

cpp/jlibmimis/build.gradle

@@ -143,4 +143,8 @@ mainPom.withXml { provider ->
 	dep.appendNode('groupId', 'com.github.boukefalos')
 	dep.appendNode('artifactId', 'jlibloader')
 	dep.appendNode('version', '0.2')
+}
+
+jar {
+	from sourceSets.main.allSource
 }